Multi-dimensional adjustable laser communication terminal ground scrambling test system

Abstract

The invention relates to the field of laser communication, in particular to a multi-dimensional adjustable laser communication terminal ground scrambling test system which comprises a laser communication terminal, a collimator, a focusing adjusting mechanism, a first direction scrambling rotary table, a second direction scrambling swing table and a swing table equal-height tool, and the first direction and the second direction do not coincide; the second direction scrambling swing table and the swing table equal-height tool are the same in thickness, one of the second direction scrambling swing table and the swing table equal-height tool is selected to be installed, when the second direction scrambling swing table is installed, the second direction scrambling swing table is arranged on the first direction scrambling rotary table, and the focusing adjusting mechanism is arranged on the second direction scrambling swing table; when a swing table equal-height tool is installed, the second direction scrambling swing table can be replaced by the swing table equal-height tool. According to the invention, one-dimensional to multi-dimensional scrambling can be realized at the same time, the size and weight of a terminal scrambling system are reduced, and batch production and testing can be realized.

Description

Technical Field

[0001] The present application relates to the field of laser communication, and in particular to a multi-dimensional adjustable ground scrambling test system for a laser communication terminal. Background Art

[0002] At present, the commercial space industry has become a globally strategic development industry. As one of the main application fields of the commercial space industry, the industrial chain of satellite communication is entering an explosive stage of exponential growth. Laser communication is gradually emerging on the stage of satellite communication. The intelligent and batch production of laser communication terminals is an inevitable trend of development. Shortening the commissioning and testing cycle is one of the key points for satellite laser communication to overcome the difficulties of high cost and long construction period in batch production.

[0003] The Pointing Acquisition Tracking (PAT) technology is one of the key points for realizing space laser communication. In the working environment of space laser communication, on the one hand, there are problems of long distance and high relative speed between two satellites, and on the other hand, there are also interferences caused by the vibration of the satellite itself, resulting in beam jitter. Therefore, the PAT function control of space laser communication has a high degree of difficulty. The ground test equivalent system can simulate the changes of satellite orbits, attitudes, vibrations, beam states, etc. on the ground for the actual working environment of the laser terminal PAT function control, and support the equivalent tests of laser links such as inter-satellite and satellite-ground.

[0004] The existing ground equivalent test systems mainly face the following difficulties and challenges: 1) The test system has a large volume and space, which not only requires a high site condition but also is not conducive to improving the test efficiency; 2) The existing test systems set up different test systems for different-dimensional scrambling respectively, resulting in a high cost; 3) The equipment of the existing test systems is expensive, has a complex structure, and a long production cycle, and cannot achieve batch production. Summary of the Invention

[0005] In order to solve the problems that the existing ground equivalent test systems have a large volume and space, require a high site condition, high cost, and cannot achieve batch production, the present application provides a multi-dimensional adjustable ground scrambling test system for a laser communication terminal.

[0006] The multi-dimensional adjustable ground scrambling test system for a laser communication terminal provided by the present application adopts the following technical solutions: A multi-dimensional adjustable ground scrambling test system for a laser communication terminal, comprising a laser communication terminal, a collimator, a light alignment adjusting mechanism, a first-direction scrambling turntable, a second-direction scrambling swing table and a swing table height equalizing tooling. The first direction and the second direction do not coincide. The second-direction scrambling swing table and the swing table height equalizing tooling have the same thickness and one of them is installed. When the second-direction scrambling swing table is installed, the second-direction scrambling swing table is arranged on the first-direction scrambling turntable, and the light alignment adjusting mechanism is arranged on the second-direction scrambling swing table. When the swing table height equalizing tooling is installed, the swing table height equalizing tooling is arranged on the first-direction scrambling turntable, and the light alignment adjusting mechanism is arranged on the swing table height equalizing tooling. The laser communication terminal is installed on the light alignment adjusting mechanism. The collimator is arranged on one side of the first-direction scrambling turntable. The first-direction scrambling turntable is used to drive the laser communication terminal to rotate along the first direction. The second-direction scrambling swing table is used to drive the laser communication terminal to swing along the second direction. The light alignment adjusting mechanism is used to adjust the alignment of the light beams of the laser communication terminal and the collimator.

[0007] By adopting the above technical solution, when the swing table height equalizing tooling is used to replace the second-direction scrambling swing table, the laser communication terminal, the collimator, the light alignment adjusting mechanism, the first-direction scrambling turntable and the swing table height equalizing tooling form a one-dimensional terminal scrambling subsystem. During the test, the first-direction scrambling turntable drives the laser communication terminal to rotate around the Z axis, so as to realize one-dimensional scrambling in one direction of the laser communication terminal. When the second-direction scrambling swing table is used to replace the swing table height equalizing tooling, the laser communication terminal, the collimator, the light alignment adjusting mechanism, the first-direction scrambling turntable and the second-direction scrambling swing table form a two-dimensional terminal scrambling subsystem. During the test, the first-direction scrambling turntable drives the laser communication terminal to rotate around the Z axis, and the second-direction scrambling swing table drives the laser communication terminal to swing along the Y axis direction, so as to realize two-dimensional scrambling in two directions of the laser communication terminal. By replacing the height equalizing tooling, multi-dimensional scrambling from one-dimensional to two-dimensional can be realized simultaneously, greatly reducing the volume and weight of the terminal scrambling system, reducing the requirements for the use site of the terminal scrambling system, reducing the production cost, and being beneficial to realizing batch production and testing.

[0008] As a further improvement of the above technical solution, a counterweight is arranged on the first-direction scrambling turntable so that the center of gravity of the load on the first-direction scrambling turntable coincides with the rotation center of the first-direction scrambling turntable.

[0009] By adopting the above technical solution, the counterweight is used to make up for the defect that the center of the rotating table on the laser communication terminal needs to coincide with the rotation center of the first-direction scrambling turntable, resulting in the center of the mechanisms such as the laser communication terminal, the light alignment adjusting mechanism, the first-direction scrambling turntable, the swing table height equalizing tooling, the vibration table height equalizing tooling, etc. (that is, the load on the first-direction scrambling turntable) not being on the rotation center of the first-direction scrambling turntable.

[0010] As a further improvement of the above technical solution, it further includes a third-direction scrambling vibration table and a height-equivalent tooling such as a vibration table. The two have the same thickness and are installed alternatively. When installing the height-equivalent tooling of the vibration table and the height-equivalent tooling of the swing table, the height-equivalent tooling of the vibration table is arranged on the first-direction scrambling turntable, the height-equivalent tooling of the swing table is arranged on the height-equivalent tooling of the vibration table, and the optical alignment adjustment mechanism is arranged on the height-equivalent tooling of the swing table; when installing the third-direction scrambling vibration table and the second-direction scrambling swing table, the third-direction scrambling vibration table is arranged on the first-direction scrambling turntable, the second-direction scrambling swing table is arranged on the third-direction scrambling vibration table, and the optical alignment adjustment mechanism is arranged on the second-direction scrambling swing table; the third-direction scrambling vibration table is used to drive the laser communication terminal to vibrate in the third direction, and the third direction does not coincide with the first direction and the second direction. The first direction, the second direction and the third direction are a three-axis coordinate system.

[0011] By adopting the above technical solution, on the basis of one-dimensional and two-dimensional, a third-direction scrambling vibration table is added. The first-direction scrambling turntable, the second-direction scrambling swing table and the third-direction scrambling vibration table constitute a three-dimensional terminal scrambling subsystem. The first-direction scrambling turntable drives the laser communication terminal to rotate around the Z axis, the second-direction scrambling swing table drives the laser communication terminal to swing along the Y axis direction, and the third-direction scrambling vibration table drives the laser communication terminal to vibrate slightly along the Z axis, realizing an effective perturbation in the Z axis direction and achieving three-dimensional scrambling of the laser communication terminal.

[0012] As a further improvement of the above technical solution, a turntable adapter plate is provided on the first-direction scrambling turntable, and the third-direction scrambling vibration table or the height-equivalent tooling such as the vibration table is arranged on the turntable adapter plate.

[0013] By adopting the above technical solution, setting a turntable adapter plate on the top of the first-direction scrambling turntable can increase the installation area, thus facilitating the installation of the laser communication terminal, the optical alignment adjustment mechanism, the second-direction scrambling swing table and each height-equivalent tooling.

[0014] As a further improvement of the above technical solution, when installing the third-direction scrambling vibration table, a transfer table plate is provided on the third-direction scrambling vibration table, and the second-direction scrambling swing table is arranged on the transfer table plate.

[0015] By adopting the above technical solution, the transfer table plate is used to connect the second-direction scrambling swing table and the third-direction scrambling vibration table to ensure the stability of the installation of the second-direction scrambling swing table.

[0016] As a further improvement of the above technical solution, a counterweight is provided on the transfer table plate so that the center of gravity of the load on the transfer table plate coincides with the rotation center of the first-direction scrambling turntable.

[0017] By adopting the above technical solution, the load torque of the scrambling turntable in the first direction can be reduced to ensure its rotation stability.

[0018] As a further improvement of the above technical solution, a terminal adapter plate is provided between the laser communication terminal and the light adjustment mechanism.

[0019] By adopting the above technical solution, the terminal adapter plate provides support for the installation of the laser communication terminal, ensuring that it can be stably installed on the light adjustment mechanism.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The multi-dimensional adjustable terminal scrambling system can realize multi-dimensional scrambling from one dimension to three dimensions at the same time by replacing some tooling components, which greatly reduces the volume and weight of the terminal scrambling system, reduces the requirements of the terminal scrambling system for the use site, reduces the cost, and is conducive to mass production and testing.

[0021] 2. The multi-dimensional adjustable terminal scrambling system adopts a one-dimensional turntable plus a micro-vibration table control method, which removes the two-dimensional turntable control part in the existing terminal scrambling system, greatly reduces the requirements for program control, shortens the production cycle and cost of test system components, and improves the test efficiency of the test system.

[0022] 3. The equal-height tooling used for replacing the structure and the adapter plates used for the adapter connection in the multi-dimensional adjustable terminal scrambling system are simple in structure and low in weight, which improves the production efficiency of the test system, greatly reduces the production cost of the test system, and is conducive to the mass production of the test system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the one-dimensional terminal scrambling subsystem in Example 1 of the present application.

[0024] Figure 2 It is a structural diagram of the two-dimensional terminal scrambling subsystem in Example 1 of the present application.

[0025] Figure 3 It is a structural diagram of the three-dimensional terminal scrambling subsystem in Example 1 of the present application.

[0026] Figure 4 It is a structural diagram of the one-dimensional terminal scrambling subsystem in Example 2 of the present application.

[0027] Figure 5 It is a structural diagram of the two-dimensional terminal scrambling subsystem in Example 2 of the present application.

[0028] Description of the reference numerals: 1. Laser communication terminal; 2. Collimator; 3. Optical alignment adjusting mechanism; 4. First-direction scrambling turntable; 5. Second-direction scrambling swing table; 6. Swing table height equalizing tooling; 7. Counterweight; 8. Third-direction scrambling vibration table; 9. Vibration table height equalizing tooling; 10. Turntable adapter plate; 11. Adapter table plate; 12. Terminal adapter plate; 13. Base plate. Detailed implementation manners

[0029] The following further describes the present application in conjunction with the Figures 1-5 accompanying drawings.

[0030] The orientation terms such as "upper", "lower", "left", "right", "front", and "rear" in the present application only represent the relative positions in the drawings, which are for the convenience of describing the present application and do not represent the absolute positions of the products, and should not be construed as limitations on the present application.

[0031] Embodiment 1 The embodiment of the present application discloses a multi-dimensional adjustable ground scrambling test system for a laser communication terminal.

[0032] As Figures 1 to 3 shown, the multi-dimensional adjustable ground scrambling test system of this embodiment includes a laser communication terminal 1, a collimator 2, an optical alignment adjusting mechanism 3, a first-direction scrambling turntable 4, a second-direction scrambling swing table 5, a swing table height equalizing tooling 6, a third-direction scrambling vibration table 8, and a vibration table height equalizing tooling 9. Among them, the first direction, the second direction, and the third direction are based on a three-axis coordinate system in this embodiment, that is, the Z-axis, the Y-axis, and the X-axis.

[0033] The above structures are combined and installed so that the multi-dimensional adjustable ground scrambling test system for the laser communication terminal forms a one-dimensional terminal scrambling subsystem, a two-dimensional terminal scrambling subsystem, and a three-dimensional terminal scrambling subsystem.

[0034] As Figure 1 shown, specifically, the one-dimensional terminal scrambling subsystem mainly includes: a laser communication terminal 1, a collimator 2, an optical alignment adjusting mechanism 3, a first-direction scrambling turntable 4, a swing table height equalizing tooling 6, and a vibration table height equalizing tooling 9.

[0035] The first-direction scrambling turntable 4 is installed on the optical test platform through the base plate 13, on which a turntable adapter plate 10 is fixed. The vibration table height equalizing tooling 9 is arranged on the turntable adapter plate 10, the swing table height equalizing tooling 6 is arranged on the vibration table height equalizing tooling 9, the optical alignment adjusting mechanism 3 is arranged on the swing table height equalizing tooling 6, and the laser communication terminal 1 is connected to the optical alignment adjusting mechanism 3 through the terminal adapter plate 12. The collimator 2 is located on one side of the first-direction scrambling turntable 4 and is installed on a base of the optical test platform.

[0036] During the test, the collimator 2 emits a light beam. By adjusting the position of the reference mirror of the laser communication terminal 1 through the optical alignment adjustment mechanism 3, it is aligned with the light beam of the collimator 2 (shown as the slender tubular structure between the collimator 2 and the laser communication terminal 1 in Figure 1 ). The first-direction scrambling turntable 4 drives the laser communication terminal 1 to rotate around the Z-axis, and the position of the light spot received by the laser communication terminal 1 changes, thus realizing one-dimensional scrambling in one direction of the laser communication terminal 1. The collimator 2 plays the role of simulating satellite laser communication signals. It can generate highly collimated light beams to simulate the laser signals used in actual satellite-to-satellite communication, ensuring the authenticity of the test environment. The first-direction scrambling turntable 4 drives the laser communication terminal 1 to rotate around the Z-axis to simulate the attitude change of the satellite in space.

[0037] It should be noted that since there is a turntable on the laser communication terminal 1, the center of this turntable needs to coincide with the rotation center of the first-direction scrambling turntable 4. Then, it will cause the centers of mechanisms such as the laser communication terminal 1, the optical alignment adjustment mechanism 3, the first-direction scrambling turntable 4, the swing table and other high-precision tooling 6, the vibration table and other high-precision tooling 9 (that is, the load on the first-direction scrambling turntable 4) not to be on the rotation center of the first-direction scrambling turntable 4, resulting in the center of gravity of the load on the first-direction scrambling turntable 4 not being on the rotation center of the first-direction scrambling turntable 4. Therefore, a counterweight needs to be set. In this embodiment, a counterweight 7 is set on the turntable adapter plate 10 of the first-direction scrambling turntable 4 to make the center of gravity of the load on the first-direction scrambling turntable 4 coincide with the rotation center of the first-direction scrambling turntable 4, reduce the load torque, and ensure the rotation stability.

[0038] As Figure 2 shown, specifically, the two-dimensional terminal scrambling subsystem mainly includes: the laser communication terminal 1, the collimator 2, the optical alignment adjustment mechanism 3, the first-direction scrambling turntable 4, the second-direction scrambling swing table 5, and the vibration table and other high-precision tooling 9.

[0039] The first direction scrambling turntable 4 is installed on the optical test platform through the bottom plate 13, on which a turntable adapter plate 10 is fixed, and the vibration table isometric tooling 9 is arranged on the turntable adapter plate 10, the second direction scrambling swing table 5 is arranged on the vibration table isometric tooling 9, and the light adjustment mechanism 3 is arranged on the second direction scrambling swing table 5. The laser communication terminal 1 is connected to the light adjustment mechanism 3 through the terminal adapter plate 12. The installation method of the collimator 2 is the same as that in the one-dimensional terminal scrambling subsystem. The second direction scrambling swing table 5 has the same thickness as the swing table isometric tooling 6. Therefore, after the second direction scrambling swing table 5 replaces the swing table isometric tooling 6, the height of the laser communication terminal 1 in the two-dimensional terminal scrambling subsystem is consistent with the height of the laser communication terminal 1 in the one-dimensional terminal scrambling subsystem, and does not affect the light alignment accuracy of the laser communication terminal 1 and the collimator 2. Similarly, it is also necessary to add a counterweight 7 in the two-dimensional terminal scrambling subsystem, and the installation method of the counterweight 7 is the same as that in the one-dimensional terminal scrambling subsystem.

[0040] During the test, the collimator 2 will emit a light beam, and the reference mirror position of the laser communication terminal 1 is adjusted by the light adjustment mechanism 3 to align it with the light beam of the collimator 2. The first direction scrambling turntable 4 drives the laser communication terminal 1 to rotate around the Z axis, and the second direction scrambling swing table 5 drives the laser communication terminal 1 to swing along the Y axis. The position of the light spot received by the laser communication terminal 1 changes, thereby realizing two-dimensional scrambling of the laser communication terminal 1 in two directions.

[0041] like Figure 3 As shown, specifically, the three-dimensional terminal scrambling subsystem mainly includes: a laser communication terminal 1, a collimator 2, a light adjustment mechanism 3, a first direction scrambling turntable 4, a second direction scrambling swing table 5 and a third direction scrambling vibration table 8.

[0042] The first-direction scrambling turntable 4 is installed on the optical test platform through the bottom plate 13, on which a turntable adapter plate 10 is fixed, the third-direction scrambling vibration table 8 is arranged on the turntable adapter plate 10, the third-direction scrambling vibration table 8 is provided with an adapter plate 11, the second-direction scrambling swing table 5 is arranged on the adapter plate 11, the light adjustment mechanism 3 is arranged on the second-direction scrambling swing table 5, and the laser communication terminal 1 is connected to the light adjustment mechanism 3 through the terminal adapter plate 12. Similarly, the total thickness of the third-direction scrambling vibration table 8 and the adapter plate 11 thereon is the same as the thickness of the vibration table isometric tooling 9, so after the third-direction scrambling vibration table 8 replaces the vibration table isometric tooling 9, the height of the laser communication terminal 1 in the three-dimensional terminal scrambling subsystem is consistent with the height of the laser communication terminal 1 in the two-dimensional terminal scrambling subsystem, and does not affect the light alignment accuracy of the laser communication terminal 1 and the parallel light tube 2. Similarly, a counterweight 7 also needs to be added to the three-dimensional terminal scrambling subsystem. Due to the provision of the third-direction scrambling vibration table 8, the counterweight 7 is installed on the transfer table 11 of the third-direction scrambling vibration table 8.

[0043] During the test, the collimator 2 emits a light beam. By adjusting the position of the reference mirror of the laser communication terminal 1 through the optical alignment adjustment mechanism 3, it is aligned with the light beam of the collimator 2. The first-direction scrambling turntable 4 drives the laser communication terminal 1 to rotate around the Z-axis, the second-direction scrambling swing table 5 drives the laser communication terminal 1 to swing along the Y-axis direction, and the third-direction scrambling vibration table 8 drives the laser communication terminal 1 to vibrate slightly along the Z-axis, realizing effective disturbance in the Z-axis direction. This three-dimensional terminal scrambling subsystem realizes three-dimensional scrambling of the laser communication terminal 1.

[0044] In this embodiment, the first-direction scrambling turntable 4 is a common turntable structure, the second-direction scrambling swing table 5 is a common arc swing table structure, and the third-direction scrambling vibration table 8 is a micro-vibration table structure. The optical alignment adjustment mechanism 3 has the same structure as the second-direction scrambling swing table 5, which is a common arc swing table structure, and both are manually adjusted. The optical alignment adjustment mechanism 3 and the second-direction scrambling swing table 5 are cross-connected at 90°. The optical alignment adjustment mechanism 3 controls the laser communication terminal 1 to rotate and swing along the X-axis, and the second-direction scrambling swing table 5 controls the laser communication terminal 1 to rotate and swing along the Y-axis.

[0045] Embodiment 2 The multi-dimension adjustable laser communication terminal ground scrambling test system according to the embodiment of the present application is different from that of Embodiment 1 in that: The test system of this embodiment does not include the third-direction scrambling vibration table 8 and the vibration table height equalizing tooling 9, and only forms a one-dimensional terminal scrambling subsystem and a two-dimensional terminal scrambling subsystem.

[0046] As Figure 4 shown, specifically, the one-dimensional terminal scrambling subsystem includes a laser communication terminal 1, a collimator 2, an optical alignment adjustment mechanism 3, a first-direction scrambling turntable 4, and a swing table height equalizing tooling 6.

[0047] The first-direction scrambling turntable 4 is installed on the optical test platform through a bottom plate 13, on which a turntable adapter plate 10 is fixed. The swing table height equalizing tooling 6 is arranged on the turntable adapter plate 10, the optical alignment adjustment mechanism 3 is arranged on the swing table height equalizing tooling 6, and the laser communication terminal 1 is connected to the optical alignment adjustment mechanism 3 through a terminal adapter plate 12. The collimator 2 is located on one side of the first-direction scrambling turntable 4 and is installed on a base of the optical test platform. Since this embodiment does not include the third-direction scrambling vibration table 8, there is no vibration table height equalizing tooling 9. A counterweight 7 is installed on the turntable adapter plate 10.

[0048] During the test, the collimator 2 emits a light beam. The position of the reference mirror of the laser communication terminal 1 is adjusted through the optical alignment mechanism 3 to make it align with the light beam of the collimator 2. The first-direction scrambling turntable 4 drives the laser communication terminal 1 to rotate around the Z-axis, and the position of the light spot received by the laser communication terminal 1 changes, thereby realizing one-dimensional scrambling in one direction of the laser communication terminal 1.

[0049] As Figure 5 shown, the two-dimensional terminal scrambling subsystem includes a laser communication terminal 1, a collimator 2, an optical alignment mechanism 3, a first-direction scrambling turntable 4, and a second-direction scrambling swing table 5.

[0050] The first-direction scrambling turntable 4 is installed on the optical test platform through a bottom plate 13, on which a turntable adapter plate 10 is fixed. The second-direction scrambling swing table 5 is arranged on the turntable adapter plate 10, the optical alignment mechanism 3 is arranged on the second-direction scrambling swing table 5, and the laser communication terminal 1 is connected to the optical alignment mechanism 3 through a terminal adapter plate 12. The installation method of the collimator 2 is the same as that in the one-dimensional terminal scrambling subsystem.

[0051] During the test, the collimator 2 emits a light beam. The position of the reference mirror of the laser communication terminal 1 is adjusted through the optical alignment mechanism 3 to make it align with the light beam of the collimator 2. The first-direction scrambling turntable 4 drives the laser communication terminal 1 to rotate around the Z-axis, and the second-direction scrambling swing table 5 drives the laser communication terminal 1 to swing along the Y-axis direction. The position of the light spot received by the laser communication terminal 1 changes, thereby realizing two-dimensional scrambling in two directions of the laser communication terminal 1.

[0052] It should be noted that in addition to the above Embodiment 1 and Embodiment 2, in other embodiments, there can be various combination methods. For example, the second-direction scrambling swing table 5 in Embodiment 2 is replaced with a third-direction scrambling vibration table 8, and one-dimensional or two-dimensional scrambling can also be realized.

[0053] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A multi-dimensional adjustable laser communication terminal ground scrambling test system, characterized by: The invention comprises a laser communication terminal (1), a collimator (2), a light adjustment mechanism (3), a first-direction scrambling turntable (4), a second-direction scrambling swing table (5), and a swing table equal height tooling (6); the first direction and the second direction do not overlap; the second-direction scrambling swing table (5) and the swing table equal height tooling (6) have the same thickness and are installed one by one; when the second-direction scrambling swing table (5) is installed, the second-direction scrambling swing table (5) is arranged on the first-direction scrambling turntable (4), and the light adjustment mechanism (3) is arranged on the second-direction scrambling swing table (5); when the swing table equal height tooling (6) is installed, the second-direction scrambling swing table (5) is installed on the first-direction scrambling turntable (4), and the light adjustment mechanism (3) is installed on the second-direction scrambling swing table (5); The swing table iso-height tooling (6) is arranged on the first direction scrambling turntable (4), and the light alignment adjustment mechanism (3) is arranged on the swing table iso-height tooling (6); the laser communication terminal (1) is mounted on the light alignment adjustment mechanism (3), and the collimator (2) is arranged on one side of the first direction scrambling turntable (4); the first direction scrambling turntable (4) is used to drive the laser communication terminal (1) to rotate along the first direction, and the second direction scrambling swing table (5) is used to drive the laser communication terminal (1) to swing along the second direction; the light alignment adjustment mechanism (3) is used to adjust the alignment of the light beams of the laser communication terminal (1) and the collimator (2).

2. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to claim 1 is characterized in that: A counterweight (7) is provided on the first-direction scrambling turntable (4) so ​​that the center of gravity of the load on the first-direction scrambling turntable (4) coincides with the rotation center of the first-direction scrambling turntable (4).

3. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to claim 1 is characterized in that: The invention also comprises a third-direction scrambling vibration table (8) and a vibration table height-adjusting tool (9), the two having the same thickness and being installed one at a time. When the vibration table height-adjusting tool (9) and the swing table height-adjusting tool (6) are installed, the vibration table height-adjusting tool (9) is arranged on the first-direction scrambling turntable (4), the swing table height-adjusting tool (6) is arranged on the vibration table height-adjusting tool (9), and the light adjustment mechanism (3) is arranged on the swing table height-adjusting tool (6); when the third-direction scrambling vibration table (8) and the second-direction scrambling swing table (5) are installed, the third-direction scrambling vibration table (8) is arranged on the first-direction scrambling turntable (4), the second-direction scrambling swing table (5) is arranged on the third-direction scrambling vibration table (8), and the light adjustment mechanism (3) is arranged on the second-direction scrambling swing table (5); the third-direction scrambling vibration table (8) is used to drive the laser communication terminal (1) to vibrate along a third direction, and the third direction does not overlap with the first direction and the second direction.

4. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to claim 3 is characterized in that: The first direction, the second direction and the third direction form a three-axis coordinate system.

5. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to claim 3 is characterized in that: The first-direction scrambling turntable (4) is provided with a turntable adapter plate (10), and the third-direction scrambling vibration table (8) or vibration table equal height tooling (9) is provided on the turntable adapter plate (10).

6. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to claim 3 is characterized by: When the third-direction scrambling vibration table (8) is installed, a transfer table (11) is provided on the third-direction scrambling vibration table (8), and the second-direction scrambling swing table (5) is provided on the transfer table (11).

7. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to claim 6 is characterized in that: A counterweight (7) is provided on the transfer platform (11) so that the center of gravity of the load on the transfer platform (11) coincides with the rotation center of the first-direction scrambling turntable (4).

8. The multi-dimensional adjustable laser communication terminal ground scrambling test system according to any one of claims 1 to 7, characterized in that: A terminal adapter plate (12) is provided between the laser communication terminal (1) and the light adjustment mechanism (3).

Images