System and method for coaxial test of tracking axis and aiming axis

Abstract

The invention discloses a system and a method for coaxial testing of a tracking axis and an aiming axis, and belongs to the technical field of satellite-ground laser communication. The system comprises a detection and emission system, a light splitting device, a detection device and a simulation beacon light source. The detection and emission system is used for emitting two paths of communication light beams, the two paths of communication light beams and a star-end target can be imaged simultaneously in the detection device, and an image point in the detection device is used for being conjugated with an image point of the star-end target; the simulated beacon light source is used for outputting simulated beacon light beams, the simulated beacon light beams form reflected light beams and transmitted light beams through the light splitting device, the reflected light beams are imaged in the detection device, the transmitted light beams are imaged in the detection and emission system, and image points in the detection and emission system are conjugated with the simulated beacon light source. Even in the absence of star-end beacon light, the system can still observe and adjust the coaxiality of the tracking axis and the aiming axis, and is also convenient to complete tracking, aiming and calibration in advance before external communication.

Description

Technical Field

[0001] The invention belongs to the technical field of satellite-to-ground laser communication, and in particular relates to a system and method for coaxial testing of a tracking axis and a sighting axis. Background Art

[0002] Satellite-to-ground laser communication has the advantages of high speed, large communication capacity and high confidentiality. It is one of the preferred solutions for efficient and confidential communications in the future, especially in military defense and commercial fields.

[0003] In the research of satellite-to-ground laser communication technology, the aiming accuracy of the target is one of the important parameters to ensure the establishment and maintenance of the communication link. At present, researchers have conducted a lot of research on the aiming technology of the light beam, but in actual debugging tests, there are still situations where the coaxiality of the tracking axis and the aiming axis cannot be observed and adjusted when there is no satellite beacon light; the system working ability cannot be judged; and when working externally, the tracking and aiming calibration cannot be completed in advance, thereby failing to reduce the cost of test error detection. Summary of the invention

[0004] In response to the above technical problems, the present invention provides a system and method for coaxial testing of the tracking axis and the aiming axis. By introducing simulated beacon light, it is able to solve the problem that the tracking axis and the aiming axis are difficult to observe and adjust coaxially when there is no satellite-end beacon light. In addition, the solution provided in the present application is simple and reliable, has a wide range of application scenarios, and has a mature processing technology.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] In one aspect, the present application provides a system for coaxial testing of a tracking axis and an aiming axis, including a detection and emission system, a spectroscopic device, a detection device, and a simulated beacon light source;

[0007] The detection and emission system is used to emit two communication light beams, one of which is used to form an image in the detection device, and the other is used to reach the star-end target and form an image at the same time, and the image point in the detection device is conjugate with the image point of the star-end target;

[0008] The simulated beacon light source is used to output a simulated beacon light beam, and the simulated beacon light beam forms a reflected light beam and a transmitted light beam after passing through the spectroscopic device. The reflected light beam is used to form an image in the detection device, and the transmitted light beam is used to form an image in the detection and transmission system, and the image point of the transmitted light beam in the detection and transmission system is conjugate with the simulated beacon light source.

[0009] Furthermore, it also includes an optical path returning device, wherein the simulated beacon light beam is reflected by the spectroscopic device to form a reflected light beam, and the reflected light beam returns to the original path after being acted upon by the optical path returning device and is imaged in the detection device after passing through the spectroscopic device; at the same time, the simulated beacon light beam is passed through the spectroscopic device to form a transmitted light beam, and the transmitted light beam is used for imaging in the detection and emission system.

[0010] Furthermore, it also includes an imaging lens group and a reflecting device. After the communication light beam emitted by the detection and emission system is reflected by the light splitting device, it passes through the imaging lens group and the reflecting device in sequence to form an image in the detection device.

[0011] Furthermore, the light path returning device is a corner cube prism.

[0012] Furthermore, it also includes a standard light source for emitting a standard communication light beam, and the standard communication light beam emitted by the standard light source can be imaged in the detection device; and in the detection device, the positions of the image points of the standard light source and the image points of the simulated beacon light source overlap, so as to complete the coaxial verification of the communication light beam imaging link and the simulated beacon light beam imaging link.

[0013] Furthermore, the system also includes an optical path collimation device, and the simulated beacon light beam output by the simulated beacon light source is collimated by the optical path collimation device to form a parallel light beam and emitted to the spectrometer. The parallel light beam is reflected by the spectrometer to form a first reflected light beam, and is transmitted by the spectrometer to form a transmitted light beam. The first reflected light beam enters the optical path return device and returns the second reflected light beam. The second reflected light beam returns to the spectrometer and is imaged in the detection device; the transmitted light beam directly reaches the detection and emission system and is imaged, and the image point of the transmitted light beam in the detection and emission system can be conjugate with the simulated beacon light source.

[0014] Furthermore, the spectroscopic device is a spectroscope; and the detection device is a detection camera.

[0015] On the other hand, the present application also provides a method for coaxial testing of a tracking axis and a sighting axis, using the above-mentioned system for coaxial testing of a tracking axis and a sighting axis, comprising the following steps:

[0016] S1, determining that the communication beam imaging link and the simulated beacon beam imaging link have no axis difference;

[0017] S2, the detection device obtains the image point of the communication light beam emitted by the detection and emission system;

[0018] S3, the detection device obtains the image point of the simulated beacon light beam output by the simulated beacon light source;

[0019] S4, after determining that the image point of the communication light beam coincides with the image point of the simulated beacon light beam, completing the coaxial test of the tracking axis and the aiming axis.

[0020] Furthermore, in step S1:

[0021] First, a detection and emission system is replaced with a standard light source, and the standard light source emits a standard communication light beam so that the detection device acquires the image point of the standard light beam;

[0022] Then, the simulated beacon light source outputs a simulated beacon light beam, and the detection device acquires an image point of the simulated beacon light beam;

[0023] Finally, the standard beam image points and the simulated beacon beam image points are overlapped to complete the verification of zero axis difference between the communication beam imaging link and the simulated beacon beam imaging link.

[0024] Furthermore, in step S4, the detection and transmission system is debugged until the image point of the communication beam coincides with the image point of the simulated beacon beam.

[0025] The beneficial effects of the present invention are:

[0026] In the present invention, the communication light beam emitted by the detection and emission system can be imaged simultaneously with the star-end target in the detection device, and the image point in the detection device can be conjugated with the image point of the star-end target, so that the communication light beam imaging link can simulate the aiming axis, and the image point in the detection and emission system is conjugated with the simulated beacon light source, so that the simulated beacon light beam imaging link can simulate the tracking axis. By cleverly introducing the simulated beacon beam, it is achieved that in the actual debugging test, even in the absence of the star-end beacon light, the coaxiality of the tracking axis and the aiming axis can still be observed and adjusted, which is convenient for judging the working ability of the system. At the same time, before the system for coaxial testing of the tracking axis and the aiming axis provided in the present application communicates with the outside world, it is also convenient to complete the tracking and aiming calibration in advance. The entire operation process is easy to operate, and the observation can be completed in the same image point detection device. In addition, the system for coaxial testing of the tracking axis and the aiming axis provided in the present application has a streamlined structure, no difficulty in installation and adjustment, a wide range of application scenarios, and a mature processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the system structure for coaxial testing of a tracking axis and a sighting axis according to the present invention;

[0028] Figure 2 Schematic diagram of the target surface of the detection device.

[0029] Reference numerals:

[0030] 1-detection and transmission system; 2-communication beam; 3-spectrometer; 4-imaging lens group; 5-reflection device; 6-detection device; 7-simulated beacon light source; 8-simulated beacon beam; 9-optical path collimation device; 10-optical path return device; 11-star-end beacon beam; 12-star-end target. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0032] like Figure 1 As shown, the present invention provides a system for coaxial testing of a tracking axis and a sighting axis, which solves the problem of difficulty in coaxial observation and adjustment of the tracking axis and the sighting axis when there is no satellite-end beacon light beam by introducing simulated beacon light.

[0033] The system comprises a detection and emission system 1, a spectroscopic device 3, a detection device 6, a simulated beacon light source 7, a light path return device 10, an imaging lens group 4, a reflection device 5, a standard light source and a light path collimation device 9.

[0034] When the system for coaxial testing of the tracking axis and the aiming axis is in use, the detection and emission system 1 can emit two communication light beams 2, one of which is reflected by the spectrometer 3, focused by the imaging lens group 4, and reflected again by the reflection device 5 to form an image in the detection device 6, and the other communication light beam 2 reaches the star-end target 12; the communication light beam 2 emitted by the detection and emission system 1 can be imaged in the detection device 6 and the star-end target 12 at the same time, and the image point in the detection device 6 can be conjugated with the image point of the star-end target 12, so that the imaging link of the communication light beam 2 simulates the aiming axis.

[0035] When the system for coaxial testing of the tracking axis and the aiming axis is used, the simulated beacon light source 7 outputs a simulated beacon light beam 8, which becomes a parallel light beam after being collimated by the optical path collimating device 9, and the parallel light beam forms a first reflected light beam after being reflected by the light splitting device 3, and the parallel light beam forms a transmitted light beam after passing through the light splitting device 3. Among them, the first reflected light beam enters the optical path returning device 10, and the optical path returning device 10 always returns a light beam parallel to the incident light, that is, the second reflected light beam, and the second reflected light beam returns to the light splitting device 3, and is sequentially reflected by the light splitting device 3, focused by the imaging lens group 4, and reflected again by the reflecting device 5, and is also imaged in the detecting device 6; the transmitted light beam directly reaches the detecting and transmitting system 1 and forms an image, and the image point in the detecting and transmitting system 1 can be conjugated with the simulated beacon light source 7, so that the imaging link of the simulated beacon light beam 8 simulates the tracking axis.

[0036] The present invention cleverly introduces the simulated beacon beam 8, thereby achieving the ability to observe and adjust the coaxiality of the tracking axis and the aiming axis in the actual debugging test even in the absence of the satellite-end beacon beam 11, so as to facilitate the judgment of the system working ability. At the same time, before the system for testing the coaxiality of the tracking axis and the aiming axis communicates with the outside world, it is also convenient to complete the tracking and aiming calibration in advance. The entire operation process is easy to operate, and the observation can be completed in the same image point detection device 6. In addition, the system for testing the coaxiality of the tracking axis and the aiming axis provided by the present application has a streamlined structure, no difficulty in installation and adjustment, a wide range of application scenarios, and a mature processing technology.

[0037] Preferably, the light splitting device 3 may be a beam splitter, the reflecting device 5 may be a reflector, the detecting device 6 may be a detecting camera, and the light path collimating device 9 may be a standard straight mirror set.

[0038] The optical path collimation device 9 is arranged between the simulated beacon light source 7 and the spectrometer 3, so that the simulated beacon light beam 8 output by the simulated beacon light source 7 can form a parallel light beam after being collimated by the optical path collimation device 9, thereby facilitating improving the reliability of the coaxial test of the tracking axis and the aiming axis.

[0039] It should be understood that the imaging link of the communication beam 2 and the imaging link of the analog beacon beam 8 share the same spectrometer 3, and the imaging lens group 4 and the reflecting device 5 are arranged between the detection device 6 and the spectrometer 3 so as to shorten the optical path layout and save space.

[0040] The optical path return device 10 is selected so that the simulated beacon light beam 8 output by the simulated beacon light source 7 can be imaged in the detection device 6; and the communication light beam 2 imaging link and the simulated beacon light beam 8 imaging link not only share the same spectrometer 3, but also need to share the same detection device 6. Therefore, the present invention chooses to allow the second reflected light beam to return along the original path, so that the second reflected light beam can be sequentially transmitted through the spectrometer 3, focused by the imaging lens group 4, and reflected again by the reflection device 5 to form an image in the detection device 6. It should be noted that in order to shorten the optical path layout and save space, the present invention cleverly arranges the optical path return device 10 so that the communication light beam 2 imaging link and the simulated beacon light beam 8 imaging link have a common situation. The transmission link of the simulated beacon light beam 8 includes two, one of which is imaged in the detection and emission system 1 by the transmitted light, and the other is imaged in the detection device 6 by the reflected light beam through the spectrometer 3; and the communication light beam 2 imaging link is imaged in the detection device 6 by the communication light beam 2 through the spectrometer 3. The transmission of a beam equivalent to the imaging link of the simulated beacon beam 8 has completely overlapped with the imaging link of the communication beam 2, thereby greatly optimizing the imaging link of the simulated beacon beam 8 and enabling the system provided by the present invention for coaxial testing of the tracking axis and the aiming axis to greatly simplify the structural layout and save space.

[0041] Furthermore, the optical path return device 10 is a corner cube prism. The incident light and the outgoing light of the corner cube prism must be parallel, so the reflected light beam can be guaranteed to return along the original path. However, if the ordinary reflector is not incident at a completely zero degree, the light beam or the mirror surface has a certain deflection, and the incident light and the outgoing light will have a certain angle, and it cannot return along the original path, so it is difficult to ensure a completely zero degree in actual use.

[0042] The standard light source is used to verify the axis difference-free imaging link of communication beam 2 and the imaging link of simulated beacon beam 8 before the coaxial test of tracking axis and aiming axis, so as to ensure the effective reliability of the coaxial test of tracking axis and aiming axis.

[0043] Specifically, when verifying the axis difference-free imaging link of the communication beam 2 and the imaging link of the simulated beacon beam 8:

[0044] First, the detection and emission system 1 is replaced by a standard light source, and the standard light source emits a standard light beam, so that the detection device 6 obtains the image point of the standard light beam. Specifically, after the detection and emission system 1 is replaced by the standard light source, the standard light source emits a standard communication light beam 2 with the same wavelength as the communication light beam 2 emitted by the detection and emission system 1. The standard communication light beam 2 is sequentially reflected by the light splitting device 3, focused by the imaging lens group 4, and reflected again by the reflecting device 5 to form an image in the detection device 6. Figure 2 As shown, at this time, there is a standard light source image point in the target surface of the detection device 6. By debugging the spectrometer 3, the imaging lens group 4, the reflection device 5, and the detection device 6, the standard light source image point can be located in the middle position of the target surface of the detection device 6 to ensure that the imaging link debugging of the communication light beam 2 is completed.

[0045] Then, the simulated beacon light source 7 outputs the simulated beacon light beam 8, and the detection device 6 obtains the image point of the simulated beacon light beam 8. Specifically, the simulated beacon light source 7 is turned on and outputs the simulated beacon light beam 8. The simulated beacon light beam 8 is collimated by the optical path collimation device 9 to become a parallel light beam, and the parallel light beam is reflected by the light splitting device 3 to form a reflected light beam. The reflected light beam enters the optical path return device 10, and the optical path return device 10 can always return a light beam parallel to the incident light, return the second reflected light beam to the original path, and sequentially transmit through the light splitting device 3, focus the imaging lens group 4, and reflect again by the reflection device 5 to form an image in the detection device 6. At this time, the standard light source image point and the simulated beacon light beam 8 image point exist on the target surface of the detection device 6 at the same time.

[0046] Finally, the image points of the standard light beam and the image points of the simulated beacon beam 8 are overlapped to complete the verification of no axis difference between the imaging link of the communication light beam 2 and the imaging link of the simulated beacon beam 8. Specifically, the image points of the standard light source and the image points of the simulated beacon beam 8 can be overlapped by debugging the simulated beacon light source 7, the optical path collimation device 9, and the optical path return device 10 to complete the verification of no axis difference between the imaging link of the communication light beam 2 and the imaging link of the simulated beacon beam 8.

[0047] The standard communication light beam 2 emitted by the standard light source can be imaged in the detection device 6; and in the detection device 6, the positions of the image points of the standard light source and the image points of the simulated beacon light source 7 overlap, which can complete the coaxial verification of the imaging link of the communication light beam 2 and the imaging link of the simulated beacon light beam 8.

[0048] On the other hand, the present invention provides a method for coaxial testing of tracking axis and sighting axis, which uses the aforementioned system for coaxial testing of tracking axis and sighting axis, and introduces simulated beacon light to solve the problem that the tracking axis and sighting axis are difficult to coaxially observe and adjust when there is no satellite end beacon beam. Specifically, the following steps are included:

[0049] S1, determining that there is no axis difference between the imaging link of the communication beam 2 and the imaging link of the simulated beacon beam 8, that is, completing the coaxial verification of the imaging link of the communication beam 2 and the imaging link of the simulated beacon beam 8; including:

[0050] First, the detection and emission system 1 is replaced by a standard light source, and the standard light source emits a standard light beam, so that the detection device 6 acquires the image point of the standard light beam.

[0051] Specifically, after the detection and emission system 1 is replaced by the standard light source, the standard light source emits a standard communication light beam with the same wavelength as the communication light beam 2 emitted by the detection and emission system 1, and the standard communication light beam is sequentially reflected by the light splitting device 3, focused by the imaging lens group 4, and reflected again by the reflecting device 5, and then imaged in the detection device 6. At this time, there is an image point of the standard light source in the target surface of the detection device 6, and the image point of the standard light source can be adjusted by adjusting the light splitting device 3, the imaging lens group 4, the reflecting device 5, and the detection device 6 so that the image point of the standard light source is in the middle position of the target surface of the detection device 6, ensuring that the imaging link debugging of the communication light beam 2 is completed.

[0052] Then, the simulated beacon light source 7 outputs a simulated beacon light beam 8 and enables the detection device 6 to acquire an image point of the simulated beacon light beam 8 .

[0053] Specifically, the simulated beacon light source 7 is turned on and the simulated beacon light beam 8 is output. The simulated beacon light beam 8 is collimated by the optical path collimation device 9 to become a parallel light beam. The parallel light beam is reflected by the light splitting device 3 to form a reflected light beam. The reflected light beam enters the optical path return device 10, and the optical path return device 10 can always return a light beam parallel to the incident light, return the reflected light beam to the original path, and sequentially transmit through the light splitting device 3, focus through the imaging lens group 4, and reflect again through the reflection device 5 to form an image in the detection device 6. At this time, the standard light source image point and the simulated beacon light beam 8 image point exist on the target surface of the detection device 6 at the same time.

[0054] Finally, the image points of the standard beam and the image points of the simulated beacon beam 8 are overlapped to complete the verification of the axis difference-free imaging link of the communication beam 2 and the imaging link of the simulated beacon beam 8.

[0055] Specifically, by debugging the simulated beacon light source 7, the optical path collimation device 9, and the optical path return device 10, the image points of the standard light source can be made to coincide with the image points of the simulated beacon beam 8, so as to complete the verification of the axis difference-free imaging link of the communication beam 2 and the imaging link of the simulated beacon beam 8.

[0056] S2, the detection device 6 obtains the image points of the communication light beam 2 emitted by the detection and emission system 1.

[0057] After completing the verification of the axis difference between the imaging link of the communication beam 2 and the imaging link of the simulated beacon beam 8, the standard light source is replaced with the detection and emission system 1, and the communication beam 2 emitted by the detection and emission system 1 is reflected by the light splitting device 3, focused by the imaging lens group 4, and reflected again by the reflection device 5, and then imaged in the detection device 6. Since the detection and emission system 1 can emit two communication beams 2, one of which is imaged in the detection device 6 and the other can reach the star-end target 12, the communication beam 2 emitted by the detection and emission system 1 can be imaged in the detection device 6 and the star-end target 12 at the same time, and the image point in the detection device 6 can be conjugate with the image point of the star-end target 12, so that the imaging link of the communication beam 2 can simulate the aiming axis.

[0058] S3, the detection device 6 obtains the image point of the simulated beacon light beam 8 output by the simulated beacon light source 7.

[0059] The simulated beacon light source 7 is turned on and outputs a simulated beacon light beam 8. The simulated beacon light beam 8 is collimated by the optical path collimation device 9 to become a parallel light beam. The parallel light beam is reflected by the spectroscopic device 3 to form a reflected light beam. The reflected light beam enters the optical path return device 10, and the optical path return device 10 can always return a light beam parallel to the incident light, return the reflected light beam to the original path, and sequentially transmit through the spectroscopic device 3, focus through the imaging lens group 4, and reflect again by the reflecting device 5 to form an image in the detection device 6. Since the simulated beacon light beam 8 output by the simulated beacon light source 7 forms a reflected light beam and a transmitted light beam after being reflected by the spectroscopic device 3, the reflected light beam forms an image in the detection device 6, and the transmitted light beam is used for imaging in the detection and emission system 1, and the image point in the detection and emission system 1 can be conjugated with the simulated beacon light source 7, so that the imaging link of the simulated beacon light beam 8 can simulate the tracking axis.

[0060] S4, after determining that the image point of the communication beam 2 coincides with the image point of the simulated beacon beam 8, complete the coaxial test of the tracking axis and the aiming axis.

[0061] At this time, there are both image points of the communication beam 2 and image points of the simulated beacon beam 8 on the target surface of the detection device 6. When the two image points coincide, the simulated beacon beam 8 is coaxial with the communication beam 2, that is, the tracking axis is coaxial with the aiming axis. When the two image points do not coincide, there is an aiming error, and the detection and transmission system 1 needs to be debugged until the image point of the communication beam 2 coincides with the image point of the simulated beacon beam 8. After confirming that the tracking and aiming are coaxial, external communication can be carried out.

[0062] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for coaxial testing of a tracking axis and an aiming axis, characterized in that: It includes a detection and emission system, a spectrometer, a detection device and a simulated beacon light source; The detection and emission system is used to emit two communication light beams, one of which is used to form an image in the detection device, and the other is used to reach the star-end target and form an image at the same time, and the image point in the detection device is conjugate with the image point of the star-end target; The simulated beacon light source is used to output a simulated beacon light beam, and the simulated beacon light beam forms a reflected light beam and a transmitted light beam after passing through the spectroscopic device. The reflected light beam is used to form an image in the detection device, and the transmitted light beam is used to form an image in the detection and transmission system, and the image point of the transmitted light beam in the detection and transmission system is conjugate with the simulated beacon light source.

2. The system for coaxial testing of tracking axis and sighting axis according to claim 1, characterized in that: The system also includes an optical path returning device. The simulated beacon light beam is reflected by the spectroscopic device to form the reflected light beam. The reflected light beam is acted upon by the optical path returning device and returns to the original path. After passing through the spectroscopic device, the reflected light beam is imaged in the detection device.

3. The system for coaxial testing of tracking axis and sighting axis according to claim 1, characterized in that: The system also includes an imaging lens group and a reflecting device. After one of the communication light beams emitted by the detection and emission system is reflected by the light splitting device, it passes through the imaging lens group and the reflecting device in sequence and forms an image in the detection device.

4. The system for coaxial testing of tracking axis and sighting axis according to claim 2, characterized in that: The optical path returning device is a corner cube prism.

5. The system for coaxial testing of tracking axis and sighting axis according to any one of claims 1 to 4, characterized in that: The system also includes a standard light source for emitting a standard communication light beam, and the standard communication light beam emitted by the standard light source is imaged in the detection device; and in the detection device, the positions of the image points of the standard light source and the image points of the simulated beacon light source are overlapped to complete the coaxial verification of the communication light beam imaging link and the simulated beacon light beam imaging link.

6. The system for coaxial testing of tracking axis and sighting axis according to claim 1, characterized in that: The system also includes an optical path collimation device. The simulated beacon light beam output by the simulated beacon light source is collimated by the optical path collimation device to form a parallel light beam and emitted to the spectroscopic device. The parallel light beam is reflected by the spectroscopic device to form a first reflected light beam, and is transmitted by the spectroscopic device to form a transmitted light beam. The first reflected light beam enters the optical path return device and returns the second reflected light beam. The second reflected light beam returns to the spectroscopic device and is imaged in the detection device; the transmitted light beam directly reaches the detection and emission system and is imaged, and the image point of the transmitted light beam in the detection and emission system can be conjugate with the simulated beacon light source.

7. A system for coaxial testing of a tracking axis and a sighting axis according to any one of claims 1, 2, 3, 4 or 6, characterized in that: The spectroscopic device is a spectroscope; the detection device is a detection camera.

8. A method for coaxial testing of a tracking axis and a sighting axis, characterized in that: The system for coaxial testing of the tracking axis and the aiming axis according to any one of claims 1 to 7 comprises the following steps: S1, determining that the communication beam imaging link and the simulated beacon beam imaging link have no axis difference; S2, the detection device obtains the image point of the communication light beam emitted by the detection and emission system; S3, the detection device obtains the simulated beacon light beam image point output by the simulated beacon light source; S4, after determining that the image point of the communication light beam coincides with the image point of the simulated beacon light beam, completing the coaxial test of the tracking axis and the aiming axis.

9. The method for coaxial testing of the tracking axis and the sighting axis according to claim 8, characterized in that: In step S1: First, a standard light source is used to replace the detection and emission system, and the standard light source emits a standard communication light beam so that the detection device acquires the image point of the standard light source; Then, the simulated beacon light source outputs a simulated beacon light beam, and the detection device acquires an image point of the simulated beacon light beam; Finally, the standard beam image points and the simulated beacon beam image points are overlapped to complete the verification of zero axis difference between the communication beam imaging link and the simulated beacon beam imaging link.

10. The method for coaxial testing of the tracking axis and the sighting axis according to claim 8 or 9, characterized in that: In step S4, the detection and transmission system is debugged until the image point of the communication light beam coincides with the image point of the simulated beacon light beam.

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