阅读说明：本技术 基于前向探测波束宽度指标进行引信宽波束赋形方法及系统 (Method and system for fuze wide beam shaping based on forward detection beam width index ) 是由 金桂玉 史志中 蔡克荣 迟德建 朱志鹏 于 2021-06-16 设计创作，主要内容包括：本发明提供了一种基于前向探测波束宽度指标进行引信宽波束赋形方法及系统,包括：步骤S1：在预设交会条件下,通过遭遇段弹目相对位置以及角度几何分析,建立前向探测波束边界数学模型；步骤S2：分析前向探测波束边界变化趋势,得到前向探测波束边界最大值对应的交会条件；步骤S3：将前向探测波束边界最大值对应的交会条件输入前向探测波束边界数学模型,计算得到前向探测波束宽度取值；步骤S4：根据计算得到的前向探测波束宽度取值,设定制导一体化引信前向探测波束宽度指标,完成引信宽波束赋形,确保在预设交会条件下目标头部始终处于引信前向探测波束范围内。(The invention provides a method and a system for shaping a fuze wide beam based on a forward detection beam width index, which comprises the following steps: step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section; step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam; step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam; step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.)

1. A method for fuze wide beam forming based on a forward detection beam width index is characterized by comprising the following steps:

step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;

step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;

step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;

step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.

2. The method as claimed in claim 1, wherein the step S1 includes a mathematical model of forward probe beam boundary including:

θ₀＝max(2θ₁₀,2θ₂₀) (1)

wherein, theta₁₀＝θ₁'+γ_m+Δθ (2)

θ₂₀＝θ₂'+γ_m+Δθ (3)

θ₁'＝η-β₀-α₁ (4)

θ₂'＝η+β₀-α₂ (5)

Wherein the content of the first and second substances,representing the missile velocity vector, module value of Representing a target velocity vector, modulo a Representing a relative velocity vector, modulo aχ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t₀Representing a data processing time; r represents the forward probe range; r is₀Represents elapsed time t₀Back-to-front detection distance; l is₀Representing a target maximum size; gamma ray_mRepresenting the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a₀Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha₁The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1₀An angle difference; alpha is alpha₂The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed₀An angle difference; theta₁' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta₂' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta₁₀Representing the off-target position 1 forward detection unilateral beam boundary; theta₂₀Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta₀Representing the forward probe beam boundary.

3. The method for fuze-wide beam forming based on forward probing beam width indicator according to claim 1, wherein the step S2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.

4. The method for fuze-wide beam forming based on forward probing beam width indicator according to claim 1, wherein the step S3 includes: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.

5. The method for shaping the fuze wide beam based on the forward detection beam width index according to claim 4, wherein the developing of the guidance integrated fuze forward wide beam shaping design comprises: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.

6. A system for fuze wide beam forming based on forward detection beam width indexes is characterized by comprising:

module M1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;

module M2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;

module M3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;

module M4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.

7. The system according to claim 6, wherein the forward probing beam width indicator-based fuzz-wide beam forming system in the module M1 includes:

θ₀＝max(2θ₁₀,2θ₂₀) (1)

wherein, theta₁₀＝θ₁'+γ_m+Δθ (2)

θ₂₀＝θ₂'+γ_m+Δθ (3)

θ₁'＝η-β₀-α₁ (4)

θ₂'＝η+β₀-α₂ (5)

Wherein the content of the first and second substances,representing the missile velocity vector, module value of Representing a target velocity vector, modulo a Representing a relative velocity vector, modulo aχ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t₀Representing a data processing time; r represents the forward probe range; r is₀Represents elapsed time t₀Back-to-front detection distance; l is₀Representing a target maximum size; gamma ray_mRepresenting the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a₀Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha₁The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1₀An angle difference; alpha is alpha₂The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed₀An angle difference; theta₁' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta₂' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta₁₀Representing the off-target position 1 forward detection unilateral beam boundary; theta₂₀Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta₀Representing the forward probe beam boundary.

8. The system according to claim 6, wherein the module M2 comprises: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.

9. The system according to claim 6, wherein the module M3 comprises: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.

10. The method for shaping the fuze wide beam based on the forward detection beam width index according to claim 9, wherein the developing of the guidance-integrated fuze forward wide beam shaping design comprises: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.

Technical Field

The invention relates to the technical field of guidance integrated fuzes, in particular to a method and a system for fuze wide beam shaping based on a forward detection beam width index, and more particularly relates to a method for rapidly calculating the forward detection beam width.

Background

The momentum of an ultra-high-speed target machine appearing in the early stage is small, a reverse-orbit interception mode is mostly adopted during missile attack, the meeting angle of a missile target encountering section is small, the requirement on the width of a forward detection wave beam of the guidance integrated fuze is relatively low, and the continuous detection and tracking of the guidance integrated fuze on the target can be ensured by using the narrow forward detection wave beam. With the appearance of the hypersonic speed target with variable trajectory maneuvering, the difficulty of inverse rail interception is greatly increased, and a larger intersection angle and a larger missile attack angle can appear in a bullet encounter section. Under the conditions of high relative speed, large intersection angle and large attack angle, two modes of narrow beam tracking, wide beam shaping and the like can be adopted for leading the fuze beam to always detect and track the target. When the relative speed is high (for example, the relative speed is greater than 5000m/s), the narrow beam tracking mode has high requirement on the beam tracking speed (for example, the beam tracking speed of at least 150 DEG/s is required when the relative speed is 5000m/s), and the narrow beam tracking mode is difficult to realize according to the current technology. A wide beam endowing mode is adopted, and reasonable fuze forward detection beam width needs to be set; the detection beam width is designed to be too small, so that the target can not be ensured to be always in the range of the fuze detection beam under the given intersection condition, and the phenomenon that the fuze can not detect the target can occur; the detection beam width is designed to be too large, the action distance cannot be increased, the problems of untimely response of a guidance and fighting system, difficult guidance and fighting matching and the like can exist, and the target cannot be effectively damaged.

Through the reference of domestic and foreign documents, the research aiming at the calculation of the forward detection beam width is very little at present. In order to meet the requirements, the invention provides a rapid calculation method of the forward detection beam width, which is characterized in that the forward detection beam width index of a guidance integrated fuze is set according to the calculated forward detection beam width, the fuze design is guided, the head of a target can be ensured to be always in the range of the fuze forward detection beam under the given meeting condition, and the continuous detection of the fuze on the target is realized; by combining a fuze target detection and identification algorithm, the detection starting probability of the guidance integrated fuze under a given intersection condition can be improved, and the effect of improving the missile killing probability is finally realized.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a method and a system for fuze wide beam shaping based on a forward detection beam width index.

The method for shaping the fuze wide beam based on the forward detection beam width index provided by the invention comprises the following steps:

step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;

step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;

step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;

step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.

Preferably, the mathematical model of the forward probe beam boundary in step S1 includes:

θ₀＝max(2θ₁₀,2θ₂₀) (1)

wherein, theta₁₀＝θ₁'+γ_m+Δθ (2)

θ₂₀＝θ₂'+γ_m+Δθ (3)

θ₁'＝η-β₀-α₁ (4)

θ₂'＝η+β₀-α₂ (5)

Wherein the content of the first and second substances,representing the missile velocity vector, module value of Representing a target velocity vector, modulo a Representing a relative velocity vector, modulo aχ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t₀Representing a data processing time; r represents the forward probe range; r is₀Represents elapsed time t₀Back-to-front detection distance; l is₀Representing a target maximum size; gamma ray_mRepresenting the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a₀Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha₁The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1₀An angle difference; alpha is alpha₂The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed₀An angle difference; theta₁' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta₂' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta₁₀Representing the off-target position 1 forward detection unilateral beam boundary; theta₂₀Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta₀Representing the forward probe beam boundary.

Preferably, the step S2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.

Preferably, the step S3 includes: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.

Preferably, the developing and guiding integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.

The invention provides a fuze wide beam shaping system based on a forward detection beam width index, which comprises:

module M1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;

module M2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;

module M3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;

module M4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.

Preferably, the mathematical model of the forward probe beam boundary in the module M1 includes:

θ₀＝max(2θ₁₀,2θ₂₀) (1)

wherein, theta₁₀＝θ₁'+γ_m+Δθ (2)

θ₂₀＝θ₂'+γ_m+Δθ (3)

θ₁'＝η-β₀-α₁ (4)

θ₂'＝η+β₀-α₂ (5)

Wherein the content of the first and second substances,representing the missile velocity vector, module value of Representing a target velocity vector, modulo a Representing a relative velocity vector, modulo aχ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t₀Representing a data processing time; r represents the forward probe range; r is₀Represents elapsed time t₀Back-to-front detection distance; l is₀Representing a target maximum size; gamma ray_mRepresenting the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a₀Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha₁The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1₀An angle difference; alpha is alpha₂The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed₀An angle difference; theta₁' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta₂' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta₁₀Representing the off-target position 1 forward detection unilateral beam boundary; theta₂₀Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta₀Representing the forward probe beam boundary.

Preferably, said module M2 comprises: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.

Preferably, said module M3 comprises: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.

Preferably, the developing and guiding integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.

Compared with the prior art, the invention has the following beneficial effects: the invention provides a forward detection beam width calculation method for the first time, which can ensure that a target is always in the range of a detection beam of a guidance integrated fuze under a given intersection condition and ensure that the fuze continuously detects and tracks the target, thereby improving the fuze detection starting probability and finally improving the missile killing probability;

drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a diagram of forward probing single-sided beams.

In fig. 1: a-initial position of missile, B-elapsed time t₀The position of the rear missile, C1-miss azimuth 1 corresponds to the geometric center position of the target, E1-miss azimuth 1 corresponds to the head position of the target, F1-miss azimuth 1 corresponds to the tail position of the target, C2-miss azimuth 2 corresponds to the geometric center position of the target, E2-miss azimuth 2 corresponds to the head position of the target, F1-miss azimuth 2 corresponds to the tail position of the target, and delta APD-The velocity triangle is composed.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1

The invention provides a rapid calculation method for forward detection beam width, which is used for calculating the beam width in a wide beam shaping process of forward detection of a guidance integrated fuze, solving the problem of detection and tracking of a large intersection angle attack situation fuze on an ultra-high speed target and further improving the killing probability of a missile.

According to the method for shaping the fuze wide beam based on the forward detection beam width index provided by the invention, as shown in fig. 1, the method comprises the following steps:

step S1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;

step S2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;

step S3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;

step S4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.

Specifically, the mathematical model of the forward probe beam boundary in step S1 includes:

θ₀＝max(2θ₁₀,2θ₂₀) (1)

wherein, theta₁₀＝θ₁'+γ_m+Δθ (2)

θ₂₀＝θ₂'+γ_m+Δθ (3)

θ₁'＝η-β₀-α₁ (4)

θ₂'＝η+β₀-α₂ (5)

Wherein the content of the first and second substances,representing the missile velocity vector, module value of Representing a target velocity vector, modulo a Representing a relative velocity vector, modulo aχ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t₀Representing a data processing time; r represents the forward probe range; r is₀Represents elapsed time t₀Back-to-front detection distance; l is₀Representing a target maximum size; gamma ray_mRepresenting the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a₀Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha₁The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1₀An angle difference; alpha is alpha₂The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed₀An angle difference; theta₁' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta₂' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta₁₀Representing the off-target position 1 forward detection unilateral beam boundary; theta₂₀Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta₀Representing the forward probe beam boundary.

Specifically, the step S2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.

Specifically, the step S3 includes: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.

Specifically, the developing and guidance integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.

The invention provides a fuze wide beam shaping system based on a forward detection beam width index, which comprises:

module M1: under the condition of a preset intersection, establishing a forward detection beam boundary mathematical model through the relative position and angle geometric analysis of the bullet eyes of the encountered section;

module M2: analyzing the change trend of the boundary of the forward detection wave beam to obtain an intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam;

module M3: inputting the intersection condition corresponding to the maximum value of the boundary of the forward detection beam into a mathematical model of the boundary of the forward detection beam, and calculating to obtain a value of the width of the forward detection beam;

module M4: and setting a guide integrated fuze forward detection beam width index according to the calculated forward detection beam width value, completing fuze wide beam shaping, and ensuring that the target head is always in the fuze forward detection beam range under the preset intersection condition.

Specifically, the mathematical model of the forward probe beam boundary in the module M1 includes:

θ₀＝max(2θ₁₀,2θ₂₀) (1)

wherein, theta₁₀＝θ₁'+γ_m+Δθ (2)

θ₂₀＝θ₂'+γ_m+Δθ (3)

θ₁'＝η-β₀-α₁ (4)

θ₂'＝η+β₀-α₂ (5)

Wherein the content of the first and second substances,representing the missile velocity vector, module value of Representing a target velocity vector, modulo a Representing a relative velocity vector, modulo aχ represents the bullet eye intersection angle; ρ represents the amount of miss; t is t₀Representing a data processing time; r represents the forward probe range; r is₀Represents elapsed time t₀Back-to-front detection distance; l is₀Representing a target maximum size; gamma ray_mRepresenting the missile angle of attack; Δ θ represents an angular pointing error; eta represents the included angle between the missile velocity vector and the relative velocity vector; beta is a₀Representing the included angle between the azimuth of the geometric center of the target and the relative speed; alpha is alpha₁The included angle beta between the azimuth of the head of the target and the relative speed is shown as the off-target azimuth 1₀An angle difference; alpha is alpha₂The off-target position 2 is shown, the included angle beta between the position of the target head and the relative speed₀An angle difference; theta₁' represents the off-target direction 1, wherein the included angle between the connecting line of the target head and the missile axis is included; theta₂' represents the angle between the connecting line of the target head and the missile axis in the miss direction 2; theta₁₀Representing the off-target position 1 forward detection unilateral beam boundary; theta₂₀Representing off-target orientation 2 forward detection of unilateral beam boundaries; theta₀Representing the forward probe beam boundary.

Specifically, the module M2 includes: and analyzing the change trend of the boundary of the forward detection wave beam along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension and the data processing time to obtain the intersection condition corresponding to the maximum value of the boundary of the forward detection wave beam.

Specifically, the module M3 includes: and inputting the intersection condition parameters corresponding to the maximum value of the boundary of the forward detection beam, including missile speed, target speed, intersection angle, detection distance, miss distance, missile attack angle, angle pointing error, target geometric dimension and data processing time into a mathematical model of the boundary of the forward detection beam, calculating to obtain the maximum value of the boundary of the forward detection beam, taking the maximum value as a value of the width of the forward detection beam, setting the index of the width of the forward detection beam of the guidance integrated fuse, and carrying out the shaping design of the forward wide beam of the guidance integrated fuse.

Specifically, the developing and guidance integrated fuze forward wide beam forming design comprises the following steps: according to the guide integrated fuse forward detection beam width index, phased array antenna array arrangement is analyzed and optimized, phase and amplitude control is carried out on each antenna array element of the phased array through the wave control machine and the gain control circuit, and the guide integrated fuse forward wide beam shaping design is achieved through preset amplitude-phase weighting.

The forward detection beam width value obtained by calculation can be used for setting the forward detection beam width index of the guidance integrated fuze and guiding the fuze design. When the forward detection beam width of the guidance integrated fuze is smaller than the index, the phenomena that the target is always outside a fuze detection area, the fuze cannot receive a target echo and cannot be started can occur; when the width of the forward detection beam of the guidance integrated fuze is larger than the index, under the condition that the fuze power is unchanged, the phenomenon that the action distance is reduced and the target echo is detected when the distance between the bullet eyes is short can occur, and the phenomena that a guidance system has an untimely response, guidance cooperation is difficult, and the target cannot be effectively damaged can occur. In conclusion, the calculated forward detection beam width sets the guide integrated fuze forward detection beam width index to guide the fuze design, so that the detection starting probability of the fuze under the given meeting condition can be improved, and the effect of improving the missile killing probability is finally realized.

Example 2

Example 2 is a preferred example of example 1

The invention provides a method for rapidly calculating the width of a forward detection beam, which comprises the following steps:

(1) under the given intersection condition, a forward detection beam boundary mathematical model formula is obtained through analysis and deduction of the relative position of the bullet eyes in the encounter section and the angle geometric relationship;

(2) analyzing the variation trend of the forward detection beam boundary along with the missile speed, the target speed, the intersection angle, the detection distance, the miss distance, the missile attack angle, the angle pointing error, the target geometric dimension, the data processing time and the like, and finding out the maximum value of the forward detection beam boundary;

(3) and taking the maximum value of the boundary of the forward detection beam obtained by calculation as a forward detection beam width value, and developing a forward wide beam shaping design of the guidance integrated fuse.

The forward detection wave beam boundary mathematical model is a guided missile velocity vector module valueTarget velocity vector normIntersection angle chi, detection distance r, miss distance rho and missile attack angle gamma_mAngle pointing error delta theta, target geometric dimension L₀Data processing time t₀As an input quantity, the forward detection beam boundary theta is obtained by analyzing the geometric relation between the relative position and the angle of the bullet eyes in the encountered section₀And (5) calculating a formula.

After a forward detection beam boundary mathematical model is established, analyzing the change trend of the forward detection beam boundary along with the input quantity, finding out the maximum value, and taking the maximum value obtained by calculation as the forward detection beam width value; the beam width of the guiding integrated fuse forward detection is designed, the fuse wide beam shaping is completed, and the target head can be ensured to be always in the range of the fuse forward detection beam under the given intersection condition; by combining a fuze target detection and identification algorithm, the detection starting probability of the guidance integrated fuze under a given intersection condition can be improved, and the effect of improving the missile killing probability is finally realized.

The maximum value of the forward detection beam boundary obtained by calculation is used for setting the width index of the forward detection beam of the guidance integrated fuze, and the fuze can be guided to be designed; the beam width of the guiding integrated fuse forward detection is designed, the fuse wide beam shaping is completed, and the target head can be ensured to be always in the range of the fuse forward detection beam under the given intersection condition; by combining a fuze target detection and identification algorithm, the detection starting probability of the guidance integrated fuze under a given intersection condition can be improved, and the effect of improving the missile killing probability is finally realized.

Example 3

Example 3 is a preferred example of example 1 and/or example 2

The invention provides a method for shaping a fuze wide beam based on a forward detection beam width index, which comprises the following steps:

step 1: determining missile velocity vector module value when missile eyes encounterTarget velocity vector normIntersection angle chi, detection distance r, miss distance rho and missile attack angle gamma_mAngle pointing error delta theta, target geometric dimension L₀Data processing time t₀Values are selected, such as missile speed of 1000 m/s-2000 m/s, target speed of 1000 m/s-3000 m/s, intersection angle of 0-20 degrees, detection distance of 200 m-300 m, miss distance of 0 m-8 m, missile attack angle of 0-5 degrees, angle pointing error of 2 degrees at most, target geometric dimension of 8 m-25 m and data processing time of 2ms at most.

Step 2: and deducing to obtain a forward detection beam boundary mathematical model formula:

θ₀＝max(2θ₁₀,2θ₂₀)

in the formula:

θ₁₀＝θ₁'+γ_m+Δθ

θ₂₀＝θ₂'+γ_m+Δθ

θ₁'＝η-β₀-α₁

θ₂'＝η+β₀-α₂

the symbol means:

missile velocity vector, module value ofm/s；

Target velocity vector, modulo valuem/s；

Relative velocity vector, modulus value ofm/s；

χ: angle of intersection of the eyes and the bullet;

ρ: miss amount, m;

t₀: data processing time, s;

r: forward probe distance, m;

r₀: over time t₀Back-to-front detection distance, m;

L₀: target maximum size, m;

γ_m: missile angle of attack, °;

Δ θ: angular pointing error, °;

eta: the angle between the missile velocity vector and the relative velocity vector is degree;

β₀: the included angle between the azimuth of the geometric center of the target and the relative speed is degree;

α₁: off-target orientation 1 the orientation of the head of the target and the relative velocity angle and beta₀Angle difference, °;

α₂: off-target orientation 2 the orientation of the head of the target and the relative velocity₀Angle difference, °;

θ₁': off-target orientation 1 the angle between the connecting line of the target head and the missile axis is degree;

θ₂': off-target orientation 2 the angle between the connecting line of the target head and the missile axis is degree;

θ₁₀: detecting the boundary of a single-side wave beam in the forward direction of the miss azimuth 1;

θ₂₀: detecting the boundary of the single-side wave beam in the off-target direction 2;

θ₀: forward probe beam boundaries.

And step 3: analyzing the change trend of the boundary of the forward detection wave beam, and finding out the maximum value of the boundary of the forward detection wave beam; under the condition of the step 1, the maximum value of the boundary of the forward detection wave beam appears under the conditions of a target speed of 3000m/s, a missile speed of 1000m/s, an intersection angle of 20 degrees, a detection distance of 200m, a miss distance of 8m, a missile attack angle of 5 degrees, a target geometric dimension of 8m, an angle pointing error of 2 degrees and data processing time of 2ms, and the maximum value of the boundary of the forward detection wave beam obtained by calculation is 48.7 degrees.

And 4, step 4: and taking the maximum value of the boundary of the forward detection beam obtained by calculation as a forward detection beam width value to develop the forward wide beam shaping design of the guidance integrated fuse.

Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.