A multi-purpose laser target jamming simulator

Abstract

This utility model discloses a multi-purpose laser target interference simulator, comprising a housing, an optical collimation system, an illumination system, and an interference coupling system. The optical collimation system includes a mounting cylinder and a first mirror group; the illumination system includes a target laser source, a second mirror group, and a beam combiner prism; and the interference coupling system includes an interference laser source and a third mirror group. Each component is connected to the optical path in a specific layout, with the target laser source facing a fourth convex lens, etc., and the interference laser source facing a second concave lens, etc. This simulator uses the target laser source to simulate laser echo information and the interference laser source to simulate high-repetition-rate laser interference. It allows adjustment of the spot size and energy, and can detect indicators such as the detection sensitivity, coding recognition capability, and tracking angular velocity of related systems. It is used to evaluate the overall performance parameters of the target system and is a key piece of equipment for optoelectronic and control hardware-in-the-loop simulation experiments, providing reliable experimental support.

Description

Technical Field

[0001] This utility model belongs to the field of laser equipment technology, specifically a multi-purpose laser target interference simulator. Background Technology

[0002] Laser technology has wide applications in many fields, such as the research and development and performance testing of equipment like laser ranging and lidar. During the research and development of such equipment, it is necessary to test its performance indicators, such as detection sensitivity and dynamic range. This requires simulating different types of laser signals to build a simulation test environment for the target system. This is crucial for accurately evaluating the equipment's performance and ensuring it functions properly in real-world applications, meeting the needs of various scenarios. Therefore, constructing a realistic simulation test environment is of paramount importance.

[0003] However, existing technologies have limitations in simulating different types of laser signals to construct simulation test environments. Many simulation devices can only perform a single function, such as simulating laser energy attenuation or outputting laser pulses with fixed waveforms, failing to effectively simulate changes in laser signals caused by factors such as atmospheric disturbances and target surface reflections in reality. Moreover, existing technologies often struggle to simulate multiple different types of laser signals simultaneously, failing to provide a comprehensive and realistic test environment for the target system and limiting the accurate evaluation of the target system's performance. Utility Model Content

[0004] The purpose of this invention is to provide a multi-purpose laser target interference simulator to solve the following technical problems mentioned in the background art:

[0005] Existing technologies make it difficult to construct a simulation test environment that meets the actual needs of the target system by simulating different types of laser signals.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A multi-purpose laser target interference simulator includes a housing, an optical collimation system, an illumination system, and an interference coupling system. The optical collimation system includes a mounting cylinder and a first mirror group. Both the illumination system and the interference coupling system are housed within the housing. The illumination system includes a target laser source, a second mirror group, and a beam combiner prism. The interference coupling system includes an interference laser source and a third mirror group. The mounting cylinder is connected to one side of the housing. The first mirror group includes a first convex lens, a second convex lens, and a first concave lens sequentially arranged within the mounting cylinder. The beam combiner prism faces the first concave lens. The second mirror group includes a third convex lens, a first plane mirror, a second plane mirror, and a fourth convex lens. The third convex lens faces the beam combiner prism, and the target laser source faces the fourth convex lens. The third mirror group includes a fifth convex lens, a reflector, a sixth convex lens, and a second concave lens. The fifth convex lens has its two sides facing the beam combiner prism and the reflector, respectively. The sixth convex lens has its two sides facing the reflector and the second concave lens, respectively. The interference laser source faces the second concave lens.

[0008] Furthermore, the optical system consisting of the first, second, and third lens groups operates at a wavelength of 1064nm ± 1nm.

[0009] Furthermore, the uniformity of the laser spot output by the optical collimation system is ≥90.1% in the X direction and 90.6% in the Y direction.

[0010] Furthermore, the exit pupil diameter of the optical collimation system is ≥80mm, and the exit pupil distance is ≥700mm.

[0011] Furthermore, the field of view of the target laser source in the illumination system is 3°, and the field of view of the interfering laser source in the interference coupling system is 4°.

[0012] Furthermore, the beam combiner prism combines the target laser generated by the target laser source with the interference laser generated by the interference laser source, and then generates parallel light through an optical collimation system.

[0013] Furthermore, the box has a box-like structure.

[0014] Furthermore, it also includes a control system, which comprises a power supply control subsystem, a communication control subsystem, a laser control subsystem, and an interference motion subsystem; the communication control subsystem is connected to the laser control subsystem and the interference motion subsystem respectively; the laser control subsystem is connected to the target laser source and the interference laser source; and the interference motion subsystem is connected to the motor of the laser interference section.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This multi-purpose laser target interference simulator uses a target laser source to simulate laser echo information in specific scenarios and an interference laser source to simulate high-repetition-rate laser interference. It also features adjustable laser spot size and energy. Its core purpose is to test the detection sensitivity, encoding and recognition capabilities, and tracking angular velocity of related systems, thereby evaluating the overall performance parameters of the target system. It is a crucial piece of equipment in optoelectronic and control hardware-in-the-loop simulation experimental systems, providing stable and reliable experimental support for the research, debugging, and performance verification of target systems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is one of the internal structural diagrams of this utility model;

[0019] Figure 3 This is the second schematic diagram of the internal structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the optical structure of this utility model.

[0021] The markings in the diagram are: 1-box body, 2-optical collimation system, 3-interference coupling system, 4-illumination system, 5-mounting cylinder, 6-second mirror group, 7-interference laser source, 8-target laser source, 9-third mirror group, 10-beam combining prism, 11-first mirror group, 12-first convex lens, 13-second convex lens, 14-first concave lens, 15-fifth convex lens, 16-reflector, 17-sixth convex lens, 18-second concave lens, 19-third convex lens, 20-first plane mirror, 21-second plane mirror, 22-fourth convex lens. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] A multi-purpose laser target jamming simulator, such as Figure 1 , Figure 2 as well as Figure 3As shown, it includes a housing 1, an optical collimation system 2, an illumination system 4, and an interference coupling system 3; the optical collimation system 2 includes a mounting cylinder 5 and a first mirror group 11; the illumination system 4 and the interference coupling system 3 are both housed within the housing 1; the illumination system 4 includes a target laser source 8, a second mirror group 6, and a beam combiner prism 10; the interference coupling system 3 includes an interference laser source 7 and a third mirror group 9; as... Figure 3 as well as Figure 4 As shown, the mounting cylinder 5 is connected to one side of the housing 1. The first mirror group 11 includes a first convex lens 12, a second convex lens 13, and a first concave lens 14 arranged sequentially inside the mounting cylinder 5. The beam combining prism 10 faces the first concave lens 14. The second mirror group 6 includes a third convex lens 19, a first plane mirror 20, a second plane mirror 21, and a fourth convex lens 22. The third convex lens 19 faces the beam combining prism 10, and the target laser source 8 faces the fourth convex lens 22. The third mirror group 9 includes a fifth convex lens 15, a reflector 16, a sixth convex lens 17, and a second concave lens 18. The fifth convex lens 15 faces the beam combining prism 10 and the reflector 16 on both sides, and the sixth convex lens 17 faces the reflector 16 and the second concave lens 18 on both sides. The interfering laser source 7 faces the second concave lens 18.

[0025] When using, such as Figure 4 As shown, the laser emitted from the target laser source 8 is directed towards the fourth convex lens 22. After the optical path is adjusted by the fourth convex lens 22, it passes directly through the second plane mirror 21 and the first plane mirror 20 in sequence. The two plane mirrors act as optical path guides. After passing through the second plane mirror 21, the laser is transmitted to the third convex lens 19. After further adjustment by the third convex lens 19, the laser is guided to the beam combining prism 10. The laser emitted from the interfering laser source 7 is directed towards the second concave lens 18. After being processed by the second concave lens 18, it is transmitted to the sixth convex lens 17. After the optical path is adjusted by the sixth convex lens 17, it is projected onto the reflector 16. The reflector 16 reflects the laser to the fifth convex lens 15. After adjustment by the fifth convex lens 15, the laser is also transmitted to the beam combining prism 10. Two laser beams are combined at the beam combining prism 10 to form a composite laser. The composite laser is directed toward the first concave lens 14 and collimated sequentially by the first concave lens 14, the second convex lens 13, and the first convex lens 12. Finally, parallel light is generated and projected out through the mounting cylinder 5 to provide a laser signal to the device under test.

[0026] Specifically, this simulator uses target laser source 8 to simulate laser echo information under specific scenarios and interference laser source 7 to simulate high repetition rate laser interference. It also has the function of adjusting the laser spot size and energy. Its core purpose is to detect the detection sensitivity, encoding and recognition capabilities, tracking angular velocity, and other performance indicators of the relevant system, thereby evaluating the overall performance parameters of the target system. It is a crucial device in optoelectronic and control hardware-in-the-loop simulation experimental system, providing stable and reliable experimental support for the research, development, debugging, and performance verification of the target system.

[0027] In a preferred embodiment, the optical system comprising the first mirror group 11, the second mirror group 6, and the third mirror group 9 operates at a wavelength of 1064nm ± 1nm. This specific wavelength setting matches the operating band of most laser-guided systems, accurately simulating the wavelength characteristics of laser echoes and interference signals in real-world environments. This ensures that the laser signal output by the simulator is highly consistent with the real scene in terms of wavelength parameters, thereby improving the accuracy and reliability of testing performance indicators such as the target system's detection sensitivity and anti-interference capability.

[0028] In a preferred embodiment, the uniformity of the laser spot output by the optical collimation system 2 is ≥90.1% in the X direction and ≥90.6% in the Y direction. This characteristic ensures the stability and consistency of the spatial distribution of the output laser energy, providing a uniform laser signal input to the device under test, reducing test errors caused by uneven spot energy distribution, improving the accuracy of detecting relevant performance indicators of the device under test, ensuring the reliability and repeatability of test results, and providing a stable optical signal basis for evaluating the overall performance of the device under test.

[0029] In a preferred embodiment, the exit pupil diameter of the optical collimation system 2 is ≥80mm, and the exit pupil distance is ≥700mm. A larger exit pupil diameter ensures that the output laser beam has a sufficient cross-sectional size to meet the adaptation requirements of the device under test for the incident beam aperture. The set exit pupil distance provides ample installation and adjustment space for the optical entrance pupil of the device under test, ensuring that the device under test can stably receive the collimated laser signal, reducing test errors caused by optical path alignment deviations, and improving the overall adaptability and testing convenience of the system.

[0030] In a preferred embodiment, the field of view of the target laser source 8 in the illumination system 4 is 3°, and the field of view of the interfering laser source 7 in the interference coupling system 3 is 4°. This field of view setting allows the target laser and the interfering laser to form a reasonable difference in coverage during propagation. This ensures both the precise pointing of the target laser signal and the appropriate coverage of the interfering laser signal, thus providing the device under test with laser input environments under different field of view conditions. This facilitates comprehensive testing of the device under test's response to laser signals of different ranges, enhances the diversity and comprehensiveness of the testing scenarios, and provides richer reference data for evaluating the performance of the device under test.

[0031] In a preferred embodiment, the beam combining prism 10 combines the target laser generated by the target laser source 8 and the interference laser generated by the interference laser source 7, and then generates parallel light through the optical collimation system 2. This design enables two laser beams with different functions to be transmitted in the same optical path and output as parallel light. It not only ensures the synergistic effect of the target laser and the interference laser, but also simulates the characteristics of far-field laser signals through collimation processing. This allows the device under test to receive two laser signals simultaneously, facilitating the detection of its response differences to different laser signals and its comprehensive processing capabilities under the same test environment. It also reduces the system complexity caused by setting up multiple optical paths separately, and improves test efficiency and integration.

[0032] In a preferred embodiment, the housing 1 is a box-type structure. This structure provides a relatively regular and enclosed internal space, which facilitates the stable installation and layout of various optical systems and related components, provides good protection for internal devices, and also facilitates the assembly, maintenance, and integration with external equipment of the overall device.

[0033] In a preferred embodiment, the system further includes a control system, which comprises a power supply control subsystem, a communication control subsystem, a laser control subsystem, and an interference motion subsystem. The communication control subsystem is connected to the laser control subsystem and the interference motion subsystem via signals. The laser control subsystem is connected to the target laser source 8 and the interference laser source 7 via signals. The interference motion subsystem is connected to the motor of the laser interference section.

[0034] The system comprises three main components: a power supply control subsystem that supplies power to the internal components of the simulator; a communication control subsystem that controls these components and provides feedback on their operational status; a laser control subsystem that controls the output and parameters of the target laser source 8 and the interfering laser source 7; and an interfering motion subsystem that controls the movement of the motors in the laser interference section. Through signal connections between these subsystems, effective control over the power supply to all parts of the device, smooth and coordinated communication between components, precise control over the output and parameters of the laser sources, and reasonable adjustment of the movement of the motors in the laser interference section are achieved. This ensures stable operation of the device, facilitates flexible adjustment of various parameters and operating statuses, and improves overall performance and ease of operation.

[0035] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose laser target interference simulator, characterized in that: It includes a housing (1), an optical collimation system (2), an illumination system (4), and an interference coupling system (3); the optical collimation system (2) includes a mounting tube (5) and a first mirror group (11); the illumination system (4) and the interference coupling system (3) are both located inside the housing (1); the illumination system (4) includes a target laser source (8), a second mirror group (6), and a beam combiner prism (10); the interference coupling system (3) includes an interference laser source (7) and a third mirror group (9); The mounting tube (5) is connected to one side of the box body (1). The first mirror group (11) includes a first convex lens (12), a second convex lens (13) and a first concave lens (14) arranged sequentially in the mounting tube (5). The beam combining prism (10) faces the first concave lens (14). The second mirror group (6) includes a third convex lens (19), a first plane mirror (20), a second plane mirror (21) and a fourth convex lens (22). The third convex lens (19) faces the beam combining prism (10), and the target laser source (8) faces the fourth convex lens (22). The third mirror group (9) includes a fifth convex lens (15), a reflector (16), a sixth convex lens (17) and a second concave lens (18). The fifth convex lens (15) faces the beam combining prism (10) and the reflector (16) on both sides respectively. The sixth convex lens (17) faces the reflector (16) and the second concave lens (18) on both sides respectively. The interfering laser source (7) faces the second concave lens (18).

2. The multi-purpose laser target interference simulator according to claim 1, characterized in that: The optical system consisting of the first lens group (11), the second lens group (6) and the third lens group (9) operates at a wavelength of 1064nm ± 1nm.

3. The multi-purpose laser target interference simulator according to claim 1, characterized in that: The uniformity of the laser spot output by the optical collimation system (2) is ≥90.1% in the X direction and 90.6% in the Y direction.

4. The multi-purpose laser target interference simulator according to claim 1, characterized in that: The exit pupil diameter of the optical collimation system (2) is ≥80mm and the exit pupil distance is ≥700mm.

5. A multi-purpose laser target interference simulator according to claim 1, characterized in that: The field of view of the target laser source (8) in the illumination system (4) is 3°, and the field of view of the interference laser source (7) in the interference coupling system (3) is 4°.

6. The multi-purpose laser target interference simulator according to claim 1, characterized in that: The beam combining prism (10) combines the target laser generated by the target laser source (8) and the interference laser generated by the interference laser source (7) into a parallel light beam through the optical collimation system (2).

7. A multi-purpose laser target interference simulator according to claim 1, characterized in that: The box (1) has a box-type structure.

8. A multi-purpose laser target interference simulator according to claim 1, characterized in that: It also includes a control system, which includes a power supply control subsystem, a communication control subsystem, a laser control subsystem, and an interference motion subsystem; the communication control subsystem is connected to the laser control subsystem and the interference motion subsystem respectively; the laser control subsystem is connected to the target laser source (8) and the interference laser source (7) respectively; and the interference motion subsystem is connected to the motor of the laser interference part.

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