阅读说明：本技术 主动激光与主动毫米波共口径复合探测装置的布局方法 (Layout method of active laser and active millimeter wave common-caliber composite detection device ) 是由 张好军 李斯宇 张浩强 任宏光 于 2021-08-23 设计创作，主要内容包括：本发明涉及一种主动激光与主动毫米波共口径复合探测装置的布局方法,属于激光引信抗干扰领域。本发明充分利用主动激光与主动毫米波复合探测的体制优势,毫米波探测对云烟雾干扰不敏感,激光探测对有源电子干扰和箔条干扰不敏感,通过在一个结构内布局激光发射和接收的扇形光学视场、毫米波发射和接收扇形视场、收发光路和收发天线形成同等或接近的倾斜角度,以及结构上激光上下布局、毫米波收发天线对称分布在激光窗口左右,形成激光探测和毫米波探测的共口径探测布局方式,提高了激光引信复杂云烟雾背景下的性能,同时具有抗有源电子干扰和箔条干扰的能力。经试验验证,证明效果良好。(The invention relates to a layout method of an active laser and active millimeter wave common-caliber composite detection device, belonging to the field of anti-interference of laser fuses. The invention fully utilizes the system advantages of active laser and active millimeter wave composite detection, millimeter wave detection is insensitive to cloud smoke interference, laser detection is insensitive to active electronic interference and foil strip interference, the same or close inclination angle is formed by arranging the sector optical field of laser emission and reception, the sector field of millimeter wave emission and reception, the receiving and transmitting light path and the receiving and transmitting antenna in a structure, and the laser vertical arrangement and the millimeter wave receiving and transmitting antenna are symmetrically distributed on the left and right of a laser window on the structure, so that a common-caliber detection layout mode of laser detection and millimeter wave detection is formed, the performance of laser fuze under the complex cloud smoke background is improved, and the capacity of resisting active electronic interference and foil strip interference is realized. The test proves that the effect is good.)

1. A layout method of an active laser and active millimeter wave common-caliber composite detection device is characterized by comprising the following steps:

the method comprises the following steps: formation of sector laser receiving field of view:

the laser receiver (1) receives laser light in a fan-shaped receiving light field with an angle beta L1 in a sagittal plane and an angle LR in a meridional plane, and the laser light is sent to a laser transmitting circuit and a receiving circuit (3) for subsequent processing; the laser receiver (1) is inclined at an angle alpha L1 relative to the axis of the cylinder;

step two: formation of sector laser emission field of view:

the laser transmitter (2) is driven by the laser transmitting circuit and the receiving circuit (3) to radiate a fan-shaped laser beam with a divergence angle of beta L2 multiplied by LT in a meridian plane in a sagittal plane; the laser transmitter (2) is inclined at an angle alpha L2 relative to the axis of the cylinder;

step three: forming a sector millimeter wave receiving field:

the receiving antenna (4) receives millimeter wave echoes by taking an angle as a sector receiving field of beta M1 multiplied by MR in a sagittal plane, and sends the millimeter wave echoes to the millimeter wave radio frequency circuit and the intermediate frequency circuit (6) for subsequent processing; the receiving antenna (4) is inclined at an angle α M1 relative to the cylinder axis;

step four: forming a fan-shaped millimeter wave transmitting field:

the transmitting antenna (5) radiates a fan-shaped millimeter wave beam with a divergence angle of beta M2 multiplied by MT in a meridian plane in a sagittal plane under the drive of the millimeter wave radio frequency circuit and the intermediate frequency circuit (6); the transmitting antenna (5) is inclined at an angle α M2 with respect to the cylinder axis;

step five: the upper and lower layout of the laser transceiving field:

the laser receiver (1) and the laser transmitter (2) are arranged up and down on the surface of the cylinder at a distance L1;

step six: the millimeter wave receiving and transmitting view fields are distributed on two sides of the laser window:

the receiving antenna (4) and the transmitting antenna (5) are arranged on the left and right of the surface of the cylinder at a distance L and are symmetrically distributed on two sides of the laser receiver (1) and the laser transmitter (2).

2. The layout method of the active laser and active millimeter wave common-caliber compound detection device according to claim 1, wherein a value of β L1 is determined by that N1 probes are installed on a circle, and β L1 is 360 °/N1; the LR value principle is to satisfy the requirement of being larger than LT; the α L1 is taken to be perpendicular to the cylinder axis or inclined forward.

3. The layout method of the active laser and active millimeter wave common-caliber compound detection device according to claim 1, wherein a value of β L2 is determined by that N1 probes are installed on a circle, and β L2 is 360 °/N1; the value of LT is not more than LR; the value of al 2 is equal to or slightly larger than al 1.

4. The layout method of the active laser and active millimeter wave common-caliber compound detection device according to claim 1, wherein a value of β M1 is determined by that N1 probes are installed on a circle, and β M1 is 360 °/N1; the value principle of MR is to satisfy the requirement of MT or more; the α M1 is taken to be perpendicular to the cylinder axis or inclined forward.

5. The layout method of the active laser and active millimeter wave common-caliber compound detection device according to claim 1, wherein a value of β M2 is determined by that N1 probes are installed on a circle, and β M2 is 360 °/N1; the value principle of MT is not more than MR; the value of α M2 is equal to α M1.

6. The layout method of the active laser and active millimeter wave co-aperture composite detection device according to any one of claims 2 to 5, wherein the number N1 of the components capable of being installed on the whole circumference is selectableAnd (4) grouping.

7. The layout method of the active laser and active millimeter wave common-caliber composite detection device according to claim 1, wherein a value of L1 is not less than +6mm from center of the laser transceiving window.

8. The layout method of the active laser and active millimeter wave common-caliber composite detection device according to claim 1, wherein a value of L is not smaller than a larger size of a laser transceiving window.

9. The layout method of the active laser and active millimeter wave common-aperture composite detection device according to claim 1, wherein 15 to 130 degrees are selected for the sector-shaped received light field β L1, 0.5 to 5 degrees are selected for LR, and 0 to 50 degrees are selected for the inclination angle α L1 with respect to the cylindrical axis; 15-130 degrees are selected for the sector emitting light field beta L2, 0.1-3 degrees are selected for LR, and 0-50 degrees are selected for the inclination angle alpha L2 relative to the axis of the cylinder; 15-150 degrees are selected for the sector millimeter wave receiving field beta M1, 3.5-15 degrees are selected for the MR, and-30 degrees are selected for the inclination angle alpha M1 relative to the axis of the cylinder; 15-130 degrees are selected for the sector millimeter wave transmitting field beta M2, and 3.5-15 degrees are selected for MT; the inclination angle alpha M2 is selected to be-30 degrees relative to the axis of the cylinder.

10. The layout method of the active laser and active millimeter wave common-caliber composite detection device according to claim 9, wherein the distance L1 between the laser emitting field center and the laser receiving field center in the up-down layout is 10mm to 80 mm; the distance L between the millimeter wave transceiving antennas symmetrically distributed on the left side and the right side of the laser transceiving window is 18-63 mm.

Technical Field

The invention belongs to the field of anti-interference of laser fuses, and particularly relates to a layout method of an active laser and active millimeter wave common-caliber composite detection device, in particular to a transmitting optical view field, a receiving optical view field and a millimeter wave transmitting field of an active optical detection device and an active millimeter wave detection device; a millimeter wave receiving field; and matching the laser transceiving visual field with the millimeter wave transceiving visual field.

Background

The prior measures for resisting cloud and smoke interference of the laser fuse at home and abroad mainly adopt an auxiliary view field method, a body recognition method, a composite millimeter wave detection means and the like.

The auxiliary view field method is used for resisting cloud and fog interference, and is mainly characterized in that an additional receiving view field is added on the basis of a main detection view field. Theoretically, if the target is an entity target, the additional receiving view field cannot receive the laser echo signal transmitted in the main detection view field according to the diffuse reflection law; if the interference is cloud fog interference, the additional receiving visual field can receive laser echo signals transmitted in the main detection visual field. The method has the defect that sometimes the laser echo signals transmitted in the main detection view field are received by the additional receiving view field, and interference signals cannot be formed, so that the laser fuse malfunctions under the cloud and fog interference condition.

The body recognition method is resistant to cloud and fog interference, and the discrimination process is as follows: and (3) firstly carrying out azimuth gating processing on the received echo pulse, carrying out target identification by utilizing three information, namely distance change rate, target width characteristics and back edge starting, judging as a target if the three information can meet the target body characteristics, and otherwise, judging as a non-target. The disadvantages of this method are, firstly, the low resistance to cloud and sand disturbances; secondly, the target recognition ability in the smoke is poor, and the killing effect is influenced.

Disclosure of Invention

Technical problem to be solved

The technical problem to be solved by the invention is how to provide a layout method of an active laser and active millimeter wave common-caliber composite detection device, so as to solve the problem that the existing anti-cloud-fog interference method has low capacity of resisting cloud fog and sand interference; poor target recognition capability in smoke and influence on killing effect.

(II) technical scheme

In order to solve the technical problem, the invention provides a layout method of an active laser and active millimeter wave common-caliber composite detection device, which comprises the following steps:

the method comprises the following steps: formation of sector laser receiving field of view:

the laser receiver (1) receives laser light in a fan-shaped receiving light field with an angle beta L1 in a sagittal plane and an angle LR in a meridional plane, and the laser light is sent to a laser transmitting circuit and a receiving circuit (3) for subsequent processing; the laser receiver (1) is inclined at an angle alpha L1 relative to the axis of the cylinder;

step two: formation of sector laser emission field of view:

the laser transmitter (2) is driven by the laser transmitting circuit and the receiving circuit (3) to radiate a fan-shaped laser beam with a divergence angle of beta L2 multiplied by LT in a meridian plane in a sagittal plane; the laser transmitter (2) is inclined at an angle alpha L2 relative to the axis of the cylinder;

step three: forming a sector millimeter wave receiving field:

the receiving antenna (4) receives millimeter wave echoes by taking an angle as a sector receiving field of beta M1 multiplied by MR in a sagittal plane, and sends the millimeter wave echoes to the millimeter wave radio frequency circuit and the intermediate frequency circuit (6) for subsequent processing; the receiving antenna (4) is inclined at an angle α M1 relative to the cylinder axis;

step four: forming a fan-shaped millimeter wave transmitting field:

the transmitting antenna (5) radiates a fan-shaped millimeter wave beam with a divergence angle of beta M2 multiplied by MT in a meridian plane in a sagittal plane under the drive of the millimeter wave radio frequency circuit and the intermediate frequency circuit (6); the transmitting antenna (5) is inclined at an angle α M2 with respect to the cylinder axis;

step five: the upper and lower layout of the laser transceiving field:

the laser receiver (1) and the laser transmitter (2) are arranged up and down on the surface of the cylinder at a distance L1;

step six: the millimeter wave receiving and transmitting view fields are distributed on two sides of the laser window:

the receiving antenna (4) and the transmitting antenna (5) are arranged on the left and right of the surface of the cylinder at a distance L and are symmetrically distributed on two sides of the laser receiver (1) and the laser transmitter (2).

Further, the value of β L1 is determined by that N1 probes are installed on a circle, and β L1 is 360 °/N1; the LR value principle is to satisfy the requirement of being larger than LT; the α L1 is taken to be perpendicular to the cylinder axis or inclined forward.

Further, the value of β L2 is determined by that N1 probes are installed on a circle, and β L2 is 360 °/N1; the value of LT is not more than LR; the value of al 2 is equal to or slightly larger than al 1.

Further, the value of β M1 is determined by that N1 probes are installed on a circle, and β M1 is 360 °/N1; the value principle of MR is to satisfy the requirement of MT or more; the α M1 is taken to be perpendicular to the cylinder axis or inclined forward.

Further, the value of β M2 is determined by that N1 probes are installed on a circle, and β M2 is 360 °/N1; the value principle of MT is not more than MR; the value of α M2 is equal to α M1.

Further, the number N1 of the components capable of being installed on the whole circumference can be selectedAnd (4) grouping.

Further, the value of L1 is not less than +6mm from the center of the laser transceiving window.

Further, the value of L is not smaller than the larger size of the laser transceiving window.

Furthermore, 15-130 degrees are selected as beta L1 of the fan-shaped light receiving field, 0.5-5 degrees are selected as LR, and 0-50 degrees are selected as alpha L1 degrees relative to the axis of the cylinder; 15-130 degrees are selected for the sector emitting light field beta L2, 0.1-3 degrees are selected for LR, and 0-50 degrees are selected for the inclination angle alpha L2 relative to the axis of the cylinder; 15-150 degrees are selected for the sector millimeter wave receiving field beta M1, 3.5-15 degrees are selected for the MR, and-30 degrees are selected for the inclination angle alpha M1 relative to the axis of the cylinder; 15-130 degrees are selected for the sector millimeter wave transmitting field beta M2, and 3.5-15 degrees are selected for MT; the inclination angle alpha M2 is selected to be-30 degrees relative to the axis of the cylinder.

Further, the distance L1 between the center of the laser emitting field and the center of the laser receiving field which are arranged up and down is selected to be 10-80 mm; the distance L between the millimeter wave transceiving antennas symmetrically distributed on the left side and the right side of the laser transceiving window is 18-63 mm.

(III) advantageous effects

The invention provides a layout method of an active laser and active millimeter wave common-caliber composite detection device, which fully utilizes the system advantages of active laser and active millimeter wave composite detection, millimeter wave detection is insensitive to cloud smoke interference, laser detection is insensitive to active electronic interference and foil strip interference, and a common-caliber detection layout mode of laser detection and millimeter wave detection is formed by arranging a fan-shaped optical view field for laser emission and reception, a millimeter wave emission and reception fan-shaped view field, a receiving and transmitting light path and a receiving and transmitting antenna in a structure to form an equal or close inclination angle, and the laser upper and lower layout and the millimeter wave receiving and transmitting antenna are symmetrically distributed on the left and right of a laser window on the structure, so that the performance of laser fuze under a complex cloud smoke background is improved, and the common-caliber detection device has the capability of resisting active electronic interference and foil strip interference. The test proves that the effect is good.

Drawings

FIG. 1 is a view field matching layout of a laser and millimeter wave common-caliber composite detection device according to the present invention;

FIG. 2 is a view showing the layout of the laser transceiving field;

fig. 3 is a layout diagram of millimeter wave transceiving fields.

Wherein, 1 is a laser receiver, 2 is a laser transmitter, 3 is a laser transmitting circuit and a receiving circuit, 4 is a receiving antenna, 5 is a transmitting antenna, and 6 is a millimeter wave radio frequency circuit and an intermediate frequency circuit.

Detailed Description

In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

The invention provides a layout method of an active laser and active millimeter wave common-caliber composite detection device, which realizes active laser and active millimeter wave common-caliber composite detection, and utilizes the characteristic that millimeter wave detection is insensitive to cloud smoke, so that the false alarm rate of a laser fuse in the cloud smoke is reduced, the performance of the laser fuse under the background of complex cloud smoke is improved, and the capability of the fuse in resisting active electronic interference and foil strip interference can be improved.

The invention relates to an integrated layout method for an active laser and active millimeter wave common-caliber composite detection device. The identification steps of the invention are as follows: a laser sector emission field of view; a laser sector receiving field of view; a millimeter wave sector transmission field; a millimeter wave sector receiving field; the laser transceiving field is distributed up and down; the millimeter wave transceiving visual fields are symmetrically arranged on two sides of the laser window. The integrated detection device is proved to have good effect through testing tests of smoke interference resistance, active radio interference resistance and foil strip interference resistance.

The invention fully utilizes the system advantages of active laser and active millimeter wave composite detection, millimeter wave detection is insensitive to cloud smoke interference, laser detection is insensitive to active electronic interference and foil strip interference, the same or close inclination angle is formed by arranging the sector optical field of laser emission and reception, the sector field of millimeter wave emission and reception, the receiving and transmitting light path and the receiving and transmitting antenna in a structure, and the laser vertical arrangement and the millimeter wave receiving and transmitting antenna are symmetrically distributed on the left and right of a laser window on the structure, so that a common-caliber detection layout mode of laser detection and millimeter wave detection is formed, the performance of laser fuze under the complex cloud smoke background is improved, and the capacity of resisting active electronic interference and foil strip interference is realized. The test proves that the effect is good.

As shown in fig. 1-3, a layout method of an active laser and active millimeter wave common-caliber composite detection device is based on that a sector optical view field for laser emission and reception, a sector view field for millimeter wave emission and reception, an axial receiving and transmitting light path and a receiving and transmitting antenna are arranged in a structure to form an equal or close inclination angle, and the structural laser vertical layout and the millimeter wave receiving and transmitting antenna are symmetrically distributed on the left and right of a laser window, so that a common-caliber detection layout mode for laser detection and millimeter wave detection is formed, and the layout method is characterized in that:

the method comprises the following steps: formation of sector laser receiving field of view:

the laser receiver (1) receives laser light in a fan-shaped receiving light field with an angle beta L1 (in sagittal plane) multiplied by LR (in meridional plane), and sends the laser light to the laser transmitting circuit and the laser receiving circuit (3) for subsequent processing; the laser receiver (1) is inclined at an angle alpha L1 relative to the cylinder axis. The value of the beta L1 is determined by that N1 probes are arranged on a circle, and then the beta L1 is 360 DEG/N1; the LR value principle is to satisfy the requirement of being larger than LT; the α L1 is taken to be perpendicular to the cylinder axis or inclined forward.

Step two: formation of sector laser emission field of view:

the laser transmitter (2) is driven by the laser transmitting circuit and the receiving circuit (3) to radiate a fan-shaped laser beam with a divergence angle of beta L2 (in sagittal plane) x LT (in meridional plane); the laser transmitter (2) is inclined at an angle α L2 with respect to the cylinder axis. The value of the beta L2 is determined by that N1 probes are arranged on a circle, and then the beta L2 is 360 DEG/N1; the value of LT is not more than LR; the value of al 2 is equal to or slightly larger than al 1.

Step three: forming a sector millimeter wave receiving field:

the receiving antenna (4) receives millimeter wave echoes in a sector receiving field with an angle of beta M1 (in sagittal plane) multiplied by MR (in meridional plane), and the millimeter wave echoes are sent to a millimeter wave radio frequency circuit and an intermediate frequency circuit (6) for subsequent processing; the receiving antenna (4) is inclined at an angle α M1 with respect to the cylinder axis. The value of the beta M1 is determined by that N1 probes are arranged on a circle, and then the beta M1 is 360 degrees/N1; the value principle of MR is to satisfy the requirement of MT or more; the α M1 is taken to be perpendicular to the cylinder axis or inclined forward.

Step four: forming a fan-shaped millimeter wave transmitting field:

the transmitting antenna (5) radiates a fan-shaped millimeter wave beam with a divergence angle of beta M2 (in sagittal plane) multiplied by MT (in meridian plane) under the drive of the millimeter wave radio frequency circuit and the intermediate frequency circuit (6); the transmitting antenna (5) is inclined at an angle α M2 with respect to the cylinder axis. The value of the beta M2 is determined by that N1 probes are arranged on a circle, and then the beta M2 is 360 degrees/N1; the value principle of MT is not more than MR; the value of α M2 is equal to α M1.

Step five: the upper and lower layout of the laser transceiving field:

the laser receiver (1) and the laser transmitter (2) are arranged above and below the surface of the cylinder at a distance L1. The value of L1 is not less than +6mm from the center of the laser receiving and transmitting window.

Step six: the millimeter wave receiving and transmitting view fields are distributed on two sides of the laser window:

the receiving antenna (4) and the transmitting antenna (5) are arranged on the left and right of the surface of the cylinder at a distance L and are symmetrically distributed on two sides of the laser receiver (1) and the laser transmitter (2). The value of L is not less than the larger size of the laser transceiving window.

Example 1

In one embodiment of the invention, the fan-shaped received light field β L1 is 90 °, LR is 3 °, and the angle of inclination α L with respect to the cylinder axis is 25 °; the sector-shaped emitted light field β L2 is 90 °, LT is 1 °, and the angle of inclination α L2 with respect to the cylinder axis is 25 °; the sector millimeter wave receiving field beta M1 is 90 degrees, the MR is 9 degrees, and the inclination angle alpha M1 relative to the axis of the cylinder is 25 degrees; the sector millimeter wave transmitting field beta M2 is 90 degrees, and MT is 9 degrees; the angle α M2 is 25 ° relative to the cylinder axis; the distance L1 between the laser emitting field center and the laser receiving field center in the upper and lower layout is 24.5 mm; the distance L between the millimeter wave transceiving antennas symmetrically distributed on the left side and the right side of the laser transceiving window is 36 mm; the number N1 of groups that can mount the assembly over the entire circumference is 4.

Example 2

A layout method of an active laser and active millimeter wave common-caliber composite detection device comprises the following steps:

the method comprises the following steps: formation of sector laser receiving field of view:

the laser receiver (1) receives laser light in a fan-shaped receiving light field with an angle beta L1 (in sagittal plane) multiplied by LR (in meridional plane), and sends the laser light to the laser transmitting circuit and the laser receiving circuit (3) for subsequent processing; the laser receiver (1) is inclined at an angle alpha L1 relative to the cylinder axis. The value of the beta L1 is determined by that N1 probes are arranged on a circle, and then the beta L1 is 360 DEG/N1; the LR value principle is to satisfy the requirement of being larger than LT; the α L1 is taken to be perpendicular to the cylinder axis or inclined forward.

Step two: formation of sector laser emission field of view:

the laser transmitter (2) is driven by the laser transmitting circuit and the receiving circuit (3) to radiate a fan-shaped laser beam with a divergence angle of beta L2 (in sagittal plane) x LT (in meridional plane); the laser transmitter (2) is inclined at an angle α L2 with respect to the cylinder axis. The value of the beta L2 is determined by that N1 probes are arranged on a circle, and then the beta L2 is 360 DEG/N1; the value of LT is not more than LR; the value of al 2 is equal to or slightly larger than al 1.

Step three: forming a sector millimeter wave receiving field:

the receiving antenna (4) receives millimeter wave echoes in a sector receiving field with an angle of beta M1 (in sagittal plane) multiplied by MR (in meridional plane), and the millimeter wave echoes are sent to a millimeter wave radio frequency circuit and an intermediate frequency circuit (6) for subsequent processing; the receiving antenna (4) is inclined at an angle α M1 with respect to the cylinder axis. The value of the beta M1 is determined by that N1 probes are arranged on a circle, and then the beta M1 is 360 degrees/N1; the value principle of MR is to satisfy the requirement of MT or more; the α M1 is taken to be perpendicular to the cylinder axis or inclined forward.

Step four: forming a fan-shaped millimeter wave transmitting field:

the transmitting antenna (5) radiates a fan-shaped millimeter wave beam with a divergence angle of beta M2 (in sagittal plane) multiplied by MT (in meridian plane) under the drive of the millimeter wave radio frequency circuit and the intermediate frequency circuit (6); the transmitting antenna (5) is inclined at an angle α M2 with respect to the cylinder axis. The value of the beta M2 is determined by that N1 probes are arranged on a circle, and then the beta M2 is 360 degrees/N1; the value principle of MT is not more than MR; the value of α M2 is equal to α M1.

Step five: the upper and lower layout of the laser transceiving field:

the laser receiver (1) and the laser transmitter (2) are arranged above and below the surface of the cylinder at a distance L1. The value of L1 is not less than +6mm from the center of the laser receiving and transmitting window.

Step six: the millimeter wave receiving and transmitting view fields are distributed on two sides of the laser window:

the receiving antenna (4) and the transmitting antenna (5) are arranged on the left and right of the surface of the cylinder at a distance L and are symmetrically distributed on two sides of the laser receiver (1) and the laser transmitter (2). L1 is preferably sized to be no smaller than the larger size of the laser transceiver window.

Wherein, the sector receiving light field beta L1 can be selected from 15 degrees to 130 degrees, LR can be selected from 0.5 degrees to 5 degrees, and the angle is oppositeThe inclination angle alpha L1 of the axis of the cylinder can be selected from 0-50 degrees; the sector emitting light field beta L2 can be selected from 15 degrees to 130 degrees, LR can be selected from 0.1 degree to 3 degrees, and the inclination angle alpha L2 relative to the cylinder axis can be selected from 0 degree to 50 degrees; the sector millimeter wave receiving field beta M1 can be selected from 15 degrees to 150 degrees, the MR can be selected from 3.5 degrees to 15 degrees, and the inclination angle alpha M1 relative to the axis of the cylinder can be selected from-30 degrees to 30 degrees; the sector millimeter wave transmitting field beta M2 can be selected from 15 degrees to 130 degrees, and the MT can be selected from 3.5 degrees to 15 degrees; the inclination angle alpha M2 relative to the axis of the cylinder can be selected from-30 degrees to 30 degrees; the distance L1 between the laser emitting field center and the laser receiving field center in the up-and-down layout can be 10 mm-80 mm; the distance L between the millimeter wave transceiving antennas symmetrically distributed on the left side and the right side of the laser transceiving window can be 18-63 mm; the number N1 of the components capable of being installed on the whole circumference is optionalAnd (4) grouping.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.