阅读说明：本技术 一种水下制导方法 (Underwater guidance method ) 是由 刘翔 于 2019-08-09 设计创作，主要内容包括：一种水下制导方法属于水下制导技术领域,主要涉及一种利用激光驾束制导技术将载体经过水体导引到目的地的方法；本方法可以将水下的载体导引到水下的目的地,也可以将水下的载体导引到大气层中的目的地,还可以将水下的载体导引到大气层外的目的地,反过来可以将大气层外的载体导引到水下的目的地,亦可以将大气层中的载体导引到水下的目的地,可用于水下需要导引的载体,如无人潜航器、鱼雷、深水炸弹等领域。(An underwater guidance method belongs to the technical field of underwater guidance, and mainly relates to a method for guiding a carrier to a destination through a water body by utilizing a laser beam-driving guidance technology; the method can guide the underwater carrier to an underwater destination, can also guide the underwater carrier to a destination in an atmosphere, can guide the underwater carrier to a destination outside the atmosphere, can guide the carrier outside the atmosphere to the underwater destination, can also guide the carrier in the atmosphere to the underwater destination, and can be used for the carriers needing to be guided underwater, such as the fields of unmanned underwater vehicles, torpedoes, deep-water bombs and the like.)

1. An underwater guidance method is characterized in that a carrier adopts a laser beam-driving guidance technology underwater to guide the carrier to a destination through a water body.

2. The laser beam steering guidance technology of claim 1, wherein a blue-green laser is adopted, namely the wavelength of the laser is between 0.45 and 0.57 microns.

3. Directing a carrier through a body of water to a destination according to claim 1, comprising 5 directing conditions: directing the underwater vehicle to an underwater destination; directing the submerged vehicle to a destination within the atmosphere; directing the submerged vehicle to a destination outside the atmosphere; directing the support outside the atmosphere to an underwater destination; the carriers in the atmosphere are directed to a destination underwater.

Technical Field

The invention belongs to the technical field of underwater guidance, and mainly relates to a method for guiding a carrier to a destination through a water body by utilizing a laser beam steering guidance technology.

Background

Because of the particularity of underwater, available guidance methods are limited, the current underwater guidance methods mainly adopt sound waves or magnetic fields for guidance, the guidance technologies require the front end of a carrier to receive guidance information, and the requirements on the front end of the carrier are high if the underwater guidance method works across domains (water bodies and atmospheric layers). The laser beam-driving technology utilizes the rear end of the carrier to receive laser guide information, has no special requirement on the front end of the carrier, and can work in a cross-domain mode. Blue-green laser is mainly applied to underwater communication.

The laser beam driving technology takes laser as guiding information, has the possibility of cross-region (water body, atmosphere and outside atmosphere) work, and can reduce the underwater guiding cost of the carrier because no requirement is made on the front end of the carrier.

Disclosure of Invention

The invention aims to provide a method for guiding a carrier to a destination through a water body, which not only has underwater guidance capability, but also has cross-domain guidance capability. The invention is realized by setting the wavelength of the laser beam for steering guidance between blue and green light, namely 0.45 micrometer to 0.57 micrometer.

The cross-domain working principle of the laser beam steering guidance technology provided by the invention is shown in fig. 1 and 2.

In fig. 1, the underwater carrier is guided to an underwater destination, since the path of the steering laser is a straight line in the same medium, and when guiding in a cross-domain manner, the propagation path of the steering laser is deflected due to the different refractive indexes of the light waves in different media, and the polarization phenomenon conforms to the refraction law of light. When the underwater carrier is guided to the destination outside the atmosphere, the path of the driving laser is gradually deflected in the process of approaching the inner and outer interfaces of the atmosphere, and the path of the driving laser is straight after the driving laser is out of the atmosphere. According to the principle of beam reversibility, carriers outside and in the atmosphere are guided into the water body in fig. 2, and the path of the beam laser is the same as that of fig. 1, and the direction is opposite.

The object of the present invention is achieved by the following 5 cases.

1. And emitting a blue-green laser beam to the underwater destination at the underwater guiding starting position, wherein the laser beam penetrates from the starting position to the destination, and the underwater carrier is guided to the underwater destination along the laser beam.

2. The method comprises the steps that a blue-green laser beam is emitted to a destination in the atmosphere from an underwater guiding starting position, the laser beam penetrates from the starting position to the destination, an underwater carrier is guided to the destination in the atmosphere along the laser beam, if the laser beam is emitted to be vertical to the water surface, the laser beam is transmitted along a straight line, the laser beam is not emitted to be vertical to the water surface, an angle deflection conforming to the refraction law of light is generated on the water surface, and the moving direction of the carrier is changed once.

3. Emitting a blue-green laser beam to a destination outside an atmosphere at an underwater guiding starting position, wherein the laser beam penetrates through the destination from the starting position, the underwater carrier is guided to the destination outside the atmosphere along the laser beam, if the laser beam is emitted out in a way of being vertical to the water surface, the laser beam is transmitted along a straight line, the laser beam is not emitted out in a way of being vertical to the water surface, an angle deflection conforming to the refraction law of light is generated on the water surface, the deflection is gradually generated at high altitude in the atmosphere until the laser beam reaches the outside of the atmosphere, the motion direction of the carrier is firstly obviously changed once, and then the gradual change is generated until the laser beam reaches the outside of the atmosphere.

4. The method comprises the steps that a blue-green laser beam is emitted to an underwater destination from a guiding starting position in the atmosphere, the laser beam penetrates from the starting position to the destination, a carrier in the atmosphere is guided to the underwater destination along the laser beam, if the laser beam is incident perpendicular to the water surface, the laser beam propagates along a straight line, the laser beam is not incident perpendicular to the water surface, an angle deflection conforming to the refraction law of light occurs once when the laser beam enters the water surface, and the moving direction of the carrier changes once.

5. The method comprises the steps that a blue-green laser beam is emitted to an underwater destination from a guiding initial position outside the atmosphere, the laser beam penetrates through the destination from the initial position, a carrier outside the atmosphere is guided to the underwater destination along the laser beam, if the laser beam is emitted perpendicular to an interface inside and outside the atmosphere, the laser beam is transmitted along a straight line, the laser beam is not emitted perpendicular to the interface inside and outside the atmosphere, a series of angle deflection conforming to the refraction law of light occurs at high altitude in the atmosphere, the transmission direction is continuously changed gradually, one angle deflection occurs on the water surface, the movement direction of the carrier is changed gradually at first, and then one obvious change occurs when the carrier enters the water.

The advantages of the present invention are the following 4 items.

1. The front end layout of the carrier is not influenced, and the technical difficulty of guiding the carrier across the domain is reduced.

2. The carrier guide cost is low.

3. Can be guided under water.

4. Can realize the cross-region guidance in the water body, the atmosphere and outside the atmosphere.

Drawings

Fig. 1 is a schematic view of guiding an underwater vehicle.

FIG. 2 is a schematic illustration of the guidance of large and extra-atmospheric carriers to the water.

Detailed Description

The technical solution of the present invention is further described below with reference to the accompanying drawings.

The invention aims to provide a method for guiding a carrier to a destination through a water body, which not only has underwater guidance capability, but also has cross-domain guidance capability.

The specific implementation process of the present invention is divided into the following three cases according to the difference of the starting position.

In the first case, the starting position is located underwater, the blue-green laser for laser beam steering is emitted at the starting position and points to the destination, and the carrier detects the emitted blue-green laser through the blue-green light detection device at the rear end and guides the emitted blue-green laser to the destination along the path of the emitted blue-green laser. When the destination is in water, the blue-green laser guide path is a straight line; when the blue-green laser beam is emitted out perpendicular to the water surface, the blue-green laser guide path is a straight line, and the carrier is guided to a destination in the atmosphere or outside the atmosphere. The blue-green laser beam is not emitted perpendicular to the water surface, and the blue-green laser guiding path will be changed, as shown in fig. 1, to guide the carrier to a destination in or outside the atmosphere. The guiding path is different according to the difference of the destination inside and outside the atmosphere: the destination is outside the atmosphere, except for the direction of the blue-green laser guide path which is once changed when leaving the water surface, the direction of the blue-green laser guide path is changed in a slowly changing mode when approaching the atmosphere in the atmosphere, the blue-green laser guide path is similar to an arc line, and the changes of the directions conform to the refraction law of the light.

In the second case, the starting position is located in the atmosphere, the blue-green laser used for laser beam driving is emitted from the starting position to point to the destination underwater, and the carrier detects the emitted blue-green laser through the blue-green light detection device at the rear end and guides the emitted blue-green laser to the destination along the path of the emitted blue-green laser. When the blue-green laser beam is emitted into the water surface perpendicularly, the blue-green laser guide path is a straight line, and the carrier can be guided to the destination in the water along the straight line. The blue-green laser beam is not launched into perpendicular to the water surface and the blue-green laser guide path will change, as shown in fig. 2, to guide the carrier to an underwater destination. The direction of the blue-green laser beam guiding path is changed once after leaving the water surface, and the changed angle is determined by the refraction law of the light.

The third condition, the home position is located outside the atmosphere, and the blue-green laser that is used for laser to drive the bundle is launched to home position department, the destination under the pointing, and the carrier detects the blue-green laser of transmission through the blue-green laser detection device of rear end, guides the destination along the blue-green laser route of launching, and when the interface transmission of blue-green laser beam perpendicular to the inside and outside atmosphere entered, blue-green laser guide route was the straight line, can lead the destination in the aquatic along the straight line with the carrier. The blue-green laser beam is not emitted into the atmosphere perpendicular to the interface between the inside and the outside of the atmosphere, and the blue-green laser guiding path will be changed, as shown in fig. 2, to guide the carrier to an underwater destination. After getting into the atmosphere, because air density increases gradually, the direction in blue-green laser guide route can take place the slow change, until being close the surface of water, gets into the surface of water after, the direction in blue-green laser beam guide route takes place once to change, and the change of these directions all accords with the refraction law of light.