CN115097869A - Method for realizing remote active illumination imaging through ATP networking mode - Google Patents

Abstract

The invention discloses a method for realizing long-distance active illumination imaging by means of ATP networking, belonging to the field of laser beam control and laser illumination imaging, comprising the following steps: S1, obtaining distance and orientation information of a long-distance target; S2, each After the ATP system finds the target, it controls the tracking frame to capture and track the target; S3, the coarse tracking detection imaging system on each ATP system detects the target; Bright target to ensure accurate tracking target imaging. The invention not only reduces the energy backscattered by the atmosphere by increasing the distance between the laser illuminating beam and the receiving aperture, but also improves the uniformity of the target and the return light energy by irradiating a target with multiple ATPs at the same time, thereby improving the precision Track the contrast of the image, greatly increase the recognition distance, and finally achieve long-distance active illumination imaging.

Description

A method for realizing long-distance active illumination imaging by ATP networking

technical field

The invention relates to the fields of laser beam control and laser illumination imaging, and more particularly, to a method for realizing long-distance active illumination imaging by means of ATP networking.

Background technique

UAVs are unmanned aircraft that are autonomously controlled by radio-controlled equipment or programs. Today, drones have multiple functions such as reconnaissance, jamming, and air strikes. At present, laser defense is one of the more effective means for UAV defense.

The acquisition, tracking and targeting system (ATP) in laser defense is its core part. In order to achieve effective defense against UAVs, it is necessary to conduct effective tracking and imaging of UAVs. The imaging of the target by the precise tracking and detection module is the basic premise of the stable tracking of the ATP target. However, under the conditions of low ambient illumination such as at night, the light intensity received by the precise tracking and detection module is insufficient, and the details of the target cannot be imaged, and the target strike point cannot be determined. The laser is diffusely reflected into the detection system to improve the detection signal-to-noise ratio and achieve high-contrast imaging of the target.

For a single ATP, the active illumination laser and the fine-tracking detection module are usually coaxially designed. Therefore, when illuminating a long-distance target, the light received by the fine-tracking camera includes three aspects: the return light from the target's diffuse reflection, Background radiation and atmospheric backscattered light. In order to realize the long-distance active illumination imaging of a single ATP, one solution is to use a pulsed laser with high repetition frequency and high energy as the active illumination light source, but the current indicators of such lasers are not suitable and expensive in some occasions; One solution is to use a continuous illumination laser, but this working mode will cause the light energy backscattered by the atmosphere to increase with the increase of distance. When the distance is transmitted to a certain distance, the intensity of the backscattered light energy will annihilate the target diffuser. The reflected back light energy reduces the image contrast and makes it impossible to identify the target.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a method for realizing long-distance active illumination imaging through ATP networking, which not only reduces the atmospheric backscattering by increasing the distance between the laser illumination beam and the receiving aperture. Moreover, through multiple ATPs irradiating a target at the same time, the uniformity of the target is improved, and the return light energy is improved, thereby improving the contrast of the fine tracking image, greatly increasing the recognition distance, and finally realizing long-distance active illumination imaging.

The purpose of this invention is to realize through the following scheme:

A method for realizing long-distance active illumination imaging through ATP networking, comprising the following steps:

S1, obtain the distance and orientation information of the long-distance target;

S2, after each ATP system finds the target, it controls the tracking rack to capture and track the target;

S3, the coarse tracking detection imaging system on each ATP system detects the target;

S4, multiple ATP systems are networked to control the emission of illumination beams, illuminate the target, and ensure accurate tracking of the target imaging.

Further, in step S4, the described control emits the illumination beam, including sub-steps: using multiple ATP networking mode to work, when the radar and the rough tracking detection imaging system find the target, the target information is transmitted to the networking control center, And control the first ATP system to perform precise tracking target detection imaging without emitting illumination beams; control the second ATP system to emit illumination beams without performing precise tracking detection imaging, so as to ensure that the first ATP system realizes long-distance target precise tracking imaging .

Further, in step S4, the control to emit the illumination beam includes any one of the following control methods:

The networking control center controls the imaging and active lighting functions of multiple ATP systems in real time;

The network control center simultaneously controls multiple ATP systems for precise tracking and imaging, and only requires one ATP for beam illumination;

At the same time, the network control center has multiple ATP systems for precise tracking and imaging of the target, and multiple ATPs perform beam illumination;

The networking control center performs beam illumination for multiple targets, and multiple ATP systems perform precise tracking and imaging for multiple targets respectively.

Further, in step S4, the multiple ATP systems are separated from each other by a certain distance, and the distance is used to reduce backscattering of the illumination light.

Further, in step S4, when controlling multiple ATP systems to illuminate at the same time, the purpose is to improve the brightness uniformity of target imaging, increase the return light energy of the target, and reduce the energy demand of a single active illumination laser.

Further, in step S4, the divergence angle of the emitted illumination beam can be adjusted according to the target distance, and the adjustment mechanism is located in the active laser illumination, and the divergence angle is changed by adjusting the distance between the emitting lenses.

Further, in step S1, the radar detection module and the laser ranging module are used to obtain the distance and orientation information of the long-distance target; meanwhile, the radar detection module and the laser ranging module are also used to obtain the shape and speed information of the moving target.

Further, in step S2, the ATP system includes a laser active lighting module, a tracking rack, a telescopic launch system, a radar detection module, a laser ranging module, a precise tracking detection imaging system, a coarse tracking detection imaging system and a controller. .

Further, in step S2, according to the acquired distance and azimuth information, the tracking frame and launch telescopic system of a single ATP system are adjusted to achieve target capture.

Further, in step S3, the receiving aperture of the rough tracking detection imaging system and the transmitting telephoto system are of a common aperture design.

The beneficial effects of the present invention include:

Using the method of the invention to realize the networking of ATP can effectively increase the effective distance of continuous active lighting, improve the imaging uniformity of the target, improve the return light energy of the target, and reduce the power requirement of a single active lighting; The long-distance target imaging at the horizontal distance of kilometers greatly improves the warning and locking range of the laser weapon and provides more time for the combat response of the laser weapon. At the same time, the present invention can design a network of laser defense systems, control each ATP in the network in real time, manage a single laser defense system as a whole, and make up for the long-distance capabilities of a single ATP by means of coordinated operations. Insufficient, significantly improve combat capability.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the method flow schematic diagram of the present invention;

Fig. 2 is the mechanism schematic diagram of ATP system;

Fig. 3 is the schematic diagram of two ATP networking;

Fig. 4 is the schematic diagram of three ATP networking;

FIG. 5 is a schematic diagram of a network of multiple ATPs to realize multi-target detection.

Detailed ways

All features disclosed in all embodiments in this specification, or steps in all methods or processes disclosed implicitly, except mutually exclusive features and/or steps, may be combined and/or expanded or replaced in any way.

In the process of seeking to solve the problem in the background, the embodiment of the present invention finds that the emission illumination and the target receiving system can be separated by a certain distance, and the field of view can be reduced, thereby suppressing backscattering.

In a specific implementation manner, an embodiment of the present invention, FIG. 3 shows a schematic diagram of the networking operation of two ATPs. When the radar detection module and laser ranging module of ATP1 and ATP2 find the target and transmit the distance and azimuth information to the controller, the controller has realized the rough detection of the target by controlling the tracking rack and the launch telescopic system inside the ATP. Tracking; at this time, the network control center controls the laser active illumination module of ATP2 to control the illumination beam 2 to irradiate the target, and control the ATP1 to precisely track and image the target. By increasing the distance L between ATP1 and ATP2, the atmospheric backscattered energy caused by continuous illumination can be effectively reduced; for the imaging of targets at longer distances, only a higher power continuous laser can be used for illumination.

In another embodiment of the present invention, FIG. 4 shows a schematic diagram of the networking operation of three ATPs. When the radar detection module and laser ranging module of ATP1, ATP2 and ATP3 find the target and transmit the distance and azimuth information to the controller, the controller controls the tracking rack and the launch telescopic system inside the ATP to realize the target detection. Coarse tracking; then, the network control center controls the laser active illumination modules of ATP2 and ATP3 to emit illumination beams 2 and 3 to illuminate the target, and controls ATP1 to perform fine tracking and imaging on the target. In this way, the ATP1 receives two illumination beams to illuminate the target, which can improve the uniformity of the target's return light, improve the image contrast of precise tracking, and provide an effective guarantee for the precise tracking of ATP1. Similarly, more illuminating beams (≥3) can be used to illuminate the target, which can reduce the energy demand of a single illuminating laser and improve the uniformity of the return light of the target.

In another embodiment of the present invention, FIG. 5 shows a schematic diagram of multiple ATPs networking to achieve multi-target detection. When it is found that multiple targets exist at the same time, the networking control center takes over the control instructions of all ATPs, and controls ATP1 to ATP3 to track and image target 1, control ATP2 and ATP3 to actively illuminate target 1, and let ATP1 perform precise tracking. and control other ATPs (ATPm~ATPn) to track and image target 2, control ATPn to perform active illumination, and allow ATPm to perform precise tracking and imaging.

Example 1

As shown in Figure 1, a method for realizing long-distance active illumination imaging by ATP networking is characterized in that, comprising the following steps:

S1, obtain the distance and orientation information of the long-distance target;

S2, after each ATP system finds the target, it controls the tracking rack to capture and track the target;

S3, the coarse tracking detection imaging system on each ATP system detects the target;

S4, multiple ATP systems are networked to control the emission of illumination beams, illuminate the target, and ensure accurate tracking of the target imaging.

Example 2

On the basis of Embodiment 1, in step S4, the control to emit the illumination beam includes a sub-step: using a network of multiple ATPs to work, when the radar and the coarse tracking detection imaging system find the target, the target information is transmitted to the Network control center, and control the first ATP system to perform precise tracking target detection and imaging, without emitting illumination beam; control the second ATP system to emit illumination beam, not to perform precise tracking detection imaging, to ensure that the first ATP system achieves long-distance target tracking imaging.

Example 3

On the basis of Embodiment 1, in step S4, the control to emit the illumination beam includes any one of the following control methods:

The networking control center controls the imaging and active lighting functions of multiple ATP systems in real time;

The network control center simultaneously controls multiple ATP systems for precise tracking and imaging, and only requires one ATP for beam illumination;

At the same time, the network control center has multiple ATP systems for precise tracking and imaging of the target, and multiple ATPs perform beam illumination;

The networking control center performs beam illumination for multiple targets, and multiple ATP systems perform precise tracking and imaging for multiple targets respectively.

Example 4

On the basis of Embodiment 1, in step S4, multiple ATP systems are separated from each other by a certain distance, and the distance is used to reduce backscattering of the illumination light.

Example 5

On the basis of Example 1, in step S4, when controlling multiple ATP systems to illuminate at the same time, the purpose is to improve the brightness uniformity of target imaging, increase the return light energy of the target, and reduce the energy demand of a single active illumination laser.

Example 6

On the basis of Embodiment 1, in step S4, the divergence angle of the emitted illumination beam can be adjusted according to the target distance, and the adjustment mechanism is located in the active laser illumination, and the divergence angle is changed by adjusting the distance between the emitting lenses.

Example 7

On the basis of Embodiment 1, in step S1, the radar detection module and the laser ranging module are used to obtain the distance and azimuth information of the long-distance target; at the same time, the radar detection module and the laser ranging module can also be used to determine the shape of the moving target. , speed information to obtain.

Example 8

On the basis of Embodiment 1, as shown in FIG. 2 , in step S2, the ATP system includes a laser active lighting module, a tracking rack, a telescopic launch system, a radar detection module, a laser ranging module, and a precise tracking and detection module. Imaging system, coarse tracking detection imaging system and controller.

Example 9

On the basis of Embodiment 1, in step S2, according to the obtained distance and azimuth information, the tracking frame and launch telescopic system of a single ATP system are adjusted to achieve target capture.

Example 10

On the basis of Embodiment 8, in step S3, the receiving aperture of the coarse tracking detection imaging system and the transmitting telephoto system are of a common aperture design.

If the functions of the present invention are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes. In addition to the above examples, those skilled in the art can obtain enlightenment from the above disclosure or use knowledge or technology in related fields to make changes to obtain other embodiments, the features of each embodiment can be interchanged or replaced, and the changes and changes made by those skilled in the art Without departing from the spirit and scope of the present invention, all should fall within the protection scope of the appended claims of the present invention.

Claims (10)

1. A method for realizing remote active illumination imaging in an ATP networking mode is characterized by comprising the following steps:

s1, obtaining distance and direction information of the remote target;

s2, after each ATP system finds the target, the tracking rack is controlled to capture and track the target;

s3, detecting the target by the coarse tracking detection imaging system on each ATP system;

and S4, networking a plurality of ATP systems, controlling to emit illumination beams, illuminating the target and ensuring the imaging of the precisely tracked target.

2. The method for implementing remote active illumination imaging by ATP networking according to claim 1, wherein in step S4, the controlling emitting illumination beam includes the sub-steps of: when the radar and the coarse tracking detection imaging system find a target, target information is transmitted to a networking control center, a first ATP system is controlled to perform fine tracking target detection imaging, and no illumination light beam is emitted; and controlling the second ATP system to emit the illuminating light beam without carrying out precise tracking detection imaging, and ensuring that the first ATP system realizes remote target precise tracking imaging.

3. The method for implementing remote active illumination imaging through ATP networking according to claim 1, wherein in step S4, the controlling of the emitted illumination beam includes any one of the following control methods:

the networking control center controls the imaging and active lighting functions of the plurality of ATP systems in real time;

the networking control center simultaneously controls a plurality of ATP systems to perform fine tracking imaging, and only one ATP is required to perform beam illumination;

the networking control center simultaneously carries out accurate tracking imaging on the target by a plurality of ATP systems, and a plurality of ATP systems carry out beam illumination;

the networking control center carries out beam illumination on multiple targets, and multiple ATP systems respectively carry out fine tracking imaging on the multiple targets.

4. The method of claim 1, wherein in step S4, the plurality of ATP systems are spaced apart from each other at a distance that reduces backscattering of the illumination light.

5. The method of claim 1, wherein in step S4, when multiple ATP systems are controlled to illuminate simultaneously, the purpose is to improve the brightness uniformity of the target image, increase the return light energy of the target, and reduce the energy requirement of a single active illumination laser.

6. The method of claim 1, wherein in step S4, the divergence angle of the emitted illumination beam can be adjusted according to the target distance, the adjusting mechanism is located in the laser active illumination, and the divergence angle is changed by adjusting the distance between the emitting lenses.

7. The method for realizing remote active lighting imaging by an ATP networking mode according to claim 1, wherein in step S1, the radar detection module and the laser ranging module are used to obtain distance and direction information of a remote target; meanwhile, the radar detection module and the laser ranging module can be used for acquiring the form and speed information of the moving target.

8. The method of claim 1, wherein in step S2, the ATP system includes a laser active lighting module, a tracking rack, a telescopic transmitting system, a radar detection module, a laser ranging module, a fine tracking detection imaging system, a coarse tracking detection imaging system, and a controller.

9. The method according to claim 1, wherein in step S2, the tracking gantry and the transmitting telescope system of a single ATP system are adjusted according to the obtained distance and direction information, so as to capture the target.

10. The method of claim 8, wherein in step S3, the receiving aperture of the coarse tracking detection imaging system and the transmitting telescopic system are designed to be co-aperture.

Images