Radar target simulation device

Abstract

The application relates to a radar target simulation device which comprises a mounting frame, a first sliding rail, a first sliding table, a second sliding rail, a second sliding table, a rotating device, a simulation unit and a control unit. The first sliding table is arranged on the mounting frame and is provided with a first driving device, so that the first sliding table can move on the first sliding rail. The second sliding rail is arranged on the first sliding table, and the second sliding table moves on the second sliding rail through a second driving device, so that the second sliding table can move in two degrees of freedom, that is, the second sliding table can move in a two-dimensional area formed by the first sliding rail and the second sliding rail. The simulation unit is used for simulating a radar target, and the simulation unit is arranged on the second sliding table through the rotating device. The rotating device drives the simulation unit to rotate in an axial direction through a third driving device. Therefore, the simulation unit realizes two degrees of translation freedom and one degree of rotation freedom through the first sliding table, the second sliding table and the rotating device, and further realizes dynamic simulation of the radar target.

Description

Technical Field

[0001] This application relates to the field of radar testing technology, and in particular to a radar target simulation device. Background Technology

[0002] A radar seeker is an onboard radar device used to detect, track, and provide the missile control system with the target's position and motion parameters, guiding the missile toward the target. Therefore, the performance testing of the radar seeker is a key aspect of the testing of guided weapons.

[0003] Currently, target simulators are commonly used to test radar seekers. However, existing radar target simulators have relatively fixed positions during the testing process, which makes it difficult to meet the dynamic testing requirements of the radar seeker under test. Summary of the Invention

[0004] In view of this, this application proposes a radar target simulation device.

[0005] According to one aspect of this application, a radar target simulation device is provided, comprising: Mounting bracket, first slide rail, first slide table, second slide rail, second slide table, rotating device, simulation unit, and control unit; The first slide rail is mounted on the mounting bracket, the first slide table is slidably mounted on the first slide rail, and the first slide table is provided with a first driving device, which drives the first slide table to move on the first slide rail. The second slide rail is disposed on the first slide platform, and the second slide platform is movably disposed on the side of the second slide rail opposite to the first slide platform. The second slide platform is provided with a second driving device, and the second driving device drives the second slide platform to move on the second slide rail. The sliding direction of the first slide table and the sliding direction of the second slide table are at a preset angle, which is 30° to 90°. The simulation unit is rotatably mounted on the second slide via the rotating device. The simulation unit is suitable for simulating radar targets. The rotating device is equipped with a third driving device, which drives the simulation unit to rotate. The mounting frame is equipped with a wave-absorbing device, and the wave-absorbing device and the simulation unit are located on the same side of the mounting frame; The first drive device, the second drive device, and the third drive device are all electrically connected to the control unit.

[0006] In one possible implementation, the mounting frame includes a load-bearing frame and a support frame; The support frame is connected to the load-bearing frame, the first slide rail is mounted on the support frame, and the first slide table is located on one side of the support frame.

[0007] In one possible implementation, the load-bearing frame is equipped with load-bearing wheels; The load-bearing wheels and the support frame are located on opposite sides of the load-bearing frame, and there are two or more load-bearing wheels.

[0008] In one possible implementation, the mounting bracket further includes a reinforcement bracket; The reinforcing frame and the first slide are located on opposite sides of the support frame, and the reinforcing frame is connected to both the support frame and the load-bearing frame.

[0009] In one possible implementation, the first slide rail and the second slide rail are respectively provided with a first position sensor and a second position sensor. The first position sensor is used to obtain the position of the first slide table on the first slide rail, and the second position sensor is used to obtain the position of the second slide table on the second slide rail. The rotating device is equipped with an angle sensor, which is used to obtain the rotation angle of the simulation unit; The first position sensor, the second position sensor, and the angle sensor are all electrically connected to the control unit.

[0010] In one possible implementation, the simulation unit includes a double-ridged horn antenna and an infrared point source; Both the double-ridged horn antenna and the infrared point source are mounted on the rotating device, and both are electrically connected to the control unit.

[0011] In one possible implementation, the rotating device further includes a rotating shaft and a gear set; Both the double-ridged horn antenna and the infrared point source are located on the side of the rotating shaft, and the third driving device drives the rotating shaft to rotate through the gear set.

[0012] In one possible implementation, both the first slide rail and the second slide rail are strip-shaped, the first slide table is slidably disposed along the length direction of the first slide rail body, and the second slide table is slidably disposed along the length direction of the second slide rail body. The first slide rail is provided with a first limiting device at both ends in the length direction, and the second slide rail is provided with a second limiting device at both ends in the length direction.

[0013] In one possible implementation, both the first limiting device and the second limiting device are photoelectric limiting sensors, and both the first limiting device and the second limiting device are electrically connected to the control unit.

[0014] In one possible implementation, the mounting bracket is further provided with a stabilizing device; The second slide rail is slidably connected to the mounting bracket via the stabilizing device.

[0015] This application applies to simulating dynamic radar targets for testing radar seekers. A first slide rail and a first slide table equipped with a first drive device are mounted on a mounting frame, allowing the first slide table to move along the first slide rail. A second slide rail is mounted on the first slide table, and the second slide table moves along the second slide rail via a second drive device. This allows the second slide table to move in two degrees of freedom, i.e., within a two-dimensional area formed by the first and second slide rails. A simulation unit is used to transmit radio signals to simulate a radar target. The simulation unit is mounted on the second slide table via a rotation device, which drives the simulation unit to rotate axially via a third drive device. Thus, the simulation unit, through the first slide table, the second slide table, and the rotation device, achieves two translational degrees of freedom and one axial degree of freedom, thereby realizing the dynamic simulation of the radar target. During use, the control unit controls the first, second, and third drive devices, thereby controlling the movement of the simulation unit on one side of the mounting frame in three degrees of freedom, improving testing efficiency. Furthermore, to prevent radar signal reflection, a radar-absorbing device is installed on the mounting frame, so that the radar signal directly hitting the mounting frame is absorbed by the radar-absorbing device, reducing the impact of the mounting frame's reflection of radar signals on the test.

[0016] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0018] Figure 1 This diagram shows the main structure of the radar target simulation device according to an embodiment of this application; Figure 2 This diagram illustrates the main structural structure of the simulation unit according to an embodiment of this application; Figure 3 This application shows a front view of a radar target simulation device according to an embodiment of the present application; Figure 4 A top view of a radar target simulation device according to an embodiment of this application is shown; Figure 5 A schematic diagram of the control unit according to an embodiment of this application is shown; Figure 6 A schematic diagram illustrating the control process of an embodiment of this application is shown; Figure 7 A schematic diagram illustrating the control process of another embodiment of this application is shown; Figure 8 A circuit diagram of the control unit according to an embodiment of this application is shown. Detailed Implementation

[0019] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0020] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0021] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0022] <Method Implementation> Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0023] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0024] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0025] Figure 1 This diagram illustrates the main structure of a radar target simulation device according to an embodiment of this application. Figure 1As shown, the radar target simulation device includes: a mounting frame, a first slide rail, a first slide table, a second slide rail, a second slide table, a rotating device, a simulation unit, and a control unit. The first slide rail is mounted on the mounting frame, and the first slide table is slidably mounted on the first slide rail. The first slide table is equipped with a first driving device, which drives the first slide table to move on the first slide rail. The second slide rail is mounted on the first slide table and is movably mounted on the side of the second slide rail opposite to the first slide table. The second slide table is equipped with a second driving device, which drives the second slide table to move on the second slide rail. The sliding direction of the first slide table and the sliding direction of the second slide table form a preset angle, which is 30° to 90°. The simulation unit is rotatably mounted on the second slide table via the rotating device. The simulation unit is suitable for simulating radar targets. The rotating device is equipped with a third driving device, which drives the simulation unit to rotate. The mounting frame is equipped with a radar-absorbing device, which is located on the same side of the mounting frame as the simulation unit. The first driving device, the second driving device, and the third driving device are all electrically connected to the control unit.

[0026] This application is applicable to simulating dynamic radar targets for testing radar seekers. A first slide rail 200 and a first slide table 210 equipped with a first drive device 220 are provided on a mounting bracket 100, allowing the first slide table 210 to move on the first slide rail 200. A second slide rail 300 is disposed on the first slide table 210, and the second slide table 310 moves on the second slide rail 300 via the second drive device 320. This allows the second slide table 310 to move in two degrees of freedom, i.e., it can move within a two-dimensional area formed by the first and second slide rails 200 and 300. A simulation unit 500 is used to transmit wireless signals to simulate a radar target. The simulation unit 500 is disposed on the second slide table 310 via a rotating device, which drives the simulation unit 500 to rotate axially via a third drive device 550. Thus, the simulation unit 500, through the first slide table 210, the second slide table 310, and the rotating device, achieves two translational degrees of freedom and one axial degree of freedom, thereby realizing the dynamic simulation of the radar target. During use, the control unit controls the first drive device 220, the second drive device 320, and the third drive device 550, thereby controlling the movement of the simulation unit 500 on one side of the mounting frame 100 in three degrees of freedom, improving testing efficiency. Furthermore, to prevent radar signal reflection, a radar-absorbing device is installed on the mounting frame 100, so that the radar signal directly hitting the mounting frame 100 is absorbed by the radar-absorbing device, reducing the impact of the radar signal reflection from the mounting frame 100 on the test.

[0027] Furthermore, the mounting frame 100 includes a load-bearing frame 110 and a support frame 120; the support frame 120 is connected to the load-bearing frame 110, a first slide rail 200 is disposed on the support frame 120, and a first slide table 210 is located on one side of the support frame 120. The load-bearing frame 110 is suitable for placement on the ground or installation in other locations, and the support frame 120 is suitable for providing a mounting base for the first track and the wave-absorbing device.

[0028] The load-bearing frame 110 is equipped with load-bearing wheels 111; the load-bearing wheels 111 and the support frame 120 are located on opposite sides of the load-bearing frame 110, and there are two or more load-bearing wheels 111. By providing two or more load-bearing wheels 111, it is convenient to move this application and expands its scope of application.

[0029] In one possible implementation, the mounting frame 100 further includes a reinforcing frame 130; the reinforcing frame 130 and the first slide 210 are located on opposite sides of the support frame 120, and the reinforcing frame 130 is connected to the support frame 120 and the load-bearing frame 110 respectively, which effectively improves the overall strength of the mounting frame 100.

[0030] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the main body of the load-bearing frame 110 has a cuboid structure. The load-bearing wheels 111 and the support frame 120 are located on opposite sides of the load-bearing frame 110. The main body of the support frame 120 has a portal-shaped structure, with one end connected to the side of the load-bearing frame 110. The first slide rail 200 is located in the middle of the support frame 120, and the first slide table 210 on the first slide rail 200 protrudes from one side of the support frame 120. The main body of the reinforcing frame 130 has a portal-shaped structure, with opposite ends connected to the load-bearing frame 110 and the support frame 120, respectively, so that the reinforcing frame 130, the support frame 120, and part of the load-bearing frame 110 form a triangular structure, thereby giving the mounting frame 100 better stability. The wave-absorbing device and the first slide table 210 are located on the same side of the support frame 120, and the wave-absorbing device is matched to the support frame 120 and attached to it.

[0031] In one possible implementation, the first slide rail 200 and the second slide rail 300 are respectively equipped with a first position sensor and a second position sensor. The first position sensor is used to obtain the position of the first slide table 210 on the first slide rail 200, and the second position sensor is used to obtain the position of the second slide table 310 on the second slide rail 300. The rotating device is equipped with an angle sensor 560, which is used to obtain the rotation angle of the simulation unit 500. The first position sensor, the second position sensor, and the angle sensor 560 are all electrically connected to the control unit. This can be achieved using common techniques in the art, and no specific limitation is made.

[0032] Preferably, the first drive device 220 and the second drive device 320 are both servo motors with encoders. The first position sensor and the second position sensor are the encoders corresponding to the two servo motors, respectively. The control unit can read the encoder position, speed, current and fault status of each servo motor in real time.

[0033] In one possible implementation, the simulation unit 500 includes a double-ridged horn antenna 510 and an infrared point source 520; both the double-ridged horn antenna 510 and the infrared point source 520 are mounted on a rotating device and are electrically connected to a control unit. The control unit controls the double-ridged horn antenna 510 and the infrared point source 520 to emit different test signals for testing the radar seeker.

[0034] Among them, there are two double-ridged horn antennas 510. The two double-ridged horn antennas 510 and the infrared point source 520 are arranged longitudinally and have the same orientation. The infrared point source 520 is arranged horizontally adjacent to one of the double-ridged horn antennas 510. The horizontal distance between the center point of the infrared point source 520 and the center point of the double-ridged horn antenna 510 is 30mm to 60mm.

[0035] See Figure 2 The rotating device also includes a rotating shaft 540 and a gear set; the double-ridged horn antenna 510 and the infrared point source 520 are both located on the side of the rotating shaft 540, and the third driving device 550 drives the rotating shaft 540 to rotate through the gear set. The third driving device 550 is a servo motor, and the gear set includes a driving gear and a driven gear.

[0036] For further details, please refer to [link / reference]. Figure 2 The rotating device also includes a mounting body 530, which is connected to the second slide 310. A rotating shaft 540 is rotatably mounted on the mounting body 530. An angle sensor 560 and a driven gear are respectively installed at both ends of the rotating shaft 540. A third drive device 550 is mounted on the mounting body 530. The drive end of the third drive device 550 is equipped with a driving gear, which meshes with the driven gear, allowing the third drive device 550 to drive the rotating shaft 540 to rotate circumferentially. Two double-ridged horn wires and an infrared point source 520 are arranged sequentially on the side wall of the rotating shaft 540 to realize the rotation of the analog unit 500 on the second slide 310.

[0037] In one possible implementation, both the first slide rail 200 and the second slide rail 300 are strip-shaped. The first slide platform 210 is slidably disposed along the length of the first slide rail 200, and the second slide platform 310 is slidably disposed along the length of the second slide rail 300. First limiting devices are provided at both ends of the first slide rail 200 along its length, and second limiting devices are provided at both ends of the second slide rail 300 along its length. By providing the limiting devices, collisions and jamming between the first slide platform 210 and the second slide platform 310 during operation are prevented.

[0038] Furthermore, both the first and second limit devices are photoelectric limit sensors, and both are electrically connected to the control unit. When the first slide 210 or the second slide 310 triggers the photoelectric limit sensor, the control unit controls the first drive device 220 and the second drive device 320 to achieve limit protection for both the first slide 210 and the second slide 310.

[0039] In one possible implementation, both the first slide 210 and the second slide 310 are equipped with limit switches. The two limit switches are electrically connected to the corresponding first drive device 220 and second drive device 320, respectively. Both limit switches are electrically connected to the control unit. When the first slide 210 triggers the corresponding photoelectric limit sensor, the limit switch controls the first drive device 220 to lock. Similarly, the limit switch of the second slide 310 controls the second drive device 320 to lock after the second slide 310 triggers the corresponding photoelectric limit sensor.

[0040] Furthermore, the first and second limiting devices also include mechanical limiting parts, namely, limiting blocks are provided at both ends of the length direction of the first slide rail 200 and both ends of the length direction of the second slide rail 300, so that the first slide table 210 can only move between the two limiting blocks of the first slide rail 200 and the second slide table 310 can only move between the two limiting blocks of the second slide rail 300, thereby further improving the protection of the first slide table 210 and the second slide table 310.

[0041] Furthermore, the length direction of the first slide rail 200 and the length direction of the second slide rail 300 form a preset angle, similar to the preset angle between the sliding direction of the first slide table 210 and the sliding direction of the second slide table 310. Preferably, the preset angle is 90°. The first slide table 210 and the second slide rail 300 are connected at their middle parts. The first slide rail 200 and the first driving device 220 are connected by a gear and rack. The first driving device 220 is mounted on the first slide table 210, and the driving end of the first driving device 220 is provided with a gear. The first slide rail 200 is provided with a rack that matches the gear. The length direction of the rack is the same as that of the first slide rail 200. The gear and the rack mesh to enable the driving device to drive the first slide table 210 to move linearly on the first slide rail 200. Similarly, the second slide rail 300 and the second driving device 320 are connected by a gear and rack to achieve linear movement of the second slide table 310 on the second slide rail 300.

[0042] In one possible implementation, the mounting bracket 100 is further provided with a stabilizing device 400; the second slide rail 300 is slidably connected to the mounting bracket 100 via the stabilizing device 400. Since the second slide rail 300 is a strip-shaped structure, and its connection to the first slide table 210 is only in the middle, when the first drive device 220 moves the first slide table 210, thereby displacing the second slide rail 300, the second slide rail 300 may become unstable. By providing the stabilizing device 400, the second slide rail 300 remains connected not only to the first slide table 210 but also to the mounting bracket 100 during movement, effectively enhancing stability.

[0043] Furthermore, the stabilizing device 400 includes two synchronous pulleys 410 and a synchronous belt 420. The two synchronous pulleys 410 are respectively located at opposite ends of the support frame 120. The main body of the synchronous belt 420 is annular, and the synchronous belt 420 matches the two synchronous pulleys 410, fitting onto the two synchronous pulleys 410. Figure 4 As shown, the two synchronous pulleys 410 and the support frame 120 are located in the annular structure of the synchronous belt 420. The second slide rail 300 is connected to the synchronous belt 420, so that the second slide rail 300 drives the synchronous belt 420 to slide when it moves. The sliding direction of the synchronous belt 420 is consistent with the sliding direction of the first slide table 210.

[0044] Preferred, such as Figure 1 As shown, there are three stabilizing devices 400, which are located at both ends and the middle of the second slide rail 300 along its length, respectively, to further improve the stability of the second slide rail 300.

[0045] The stabilizing device 400, located in the middle of the second slide rail 300, has its synchronous belt 420 fixedly connected to the first slide table 210.

[0046] It should be noted that the synchronization band 420 of the stabilizing device 400 is made of radar-absorbing material, which absorbs the radar signal directly hitting the synchronization band 420, reducing the impact of radar signal reflection on the test.

[0047] In one possible implementation, the mounting bracket 100 is further provided with an electrical control cabinet 600, in which the control unit is located, which facilitates operation and provides protection for the control unit.

[0048] like Figure 5 As shown, the control unit uses a PLC as the main controller and is equipped with digital input / output modules, analog input modules, Ethernet modules, serial port modules, and CAN communication modules. The digital input / output modules can acquire the status of limit switches and zero-position switches, and control the operation of indicator lights, contactors, and relays. The analog output modules can acquire the status of the angle sensor 560. The Ethernet module enables communication with an external computer, the serial port module enables communication with the touchscreen, and the CAN communication module enables communication with the servo controller, the first drive device 220, the second drive device 320, and the third drive device 550.

[0049] The control unit controls three servo motors (first drive unit 220, second drive unit 320, and third drive unit 550) via the CAN-OPEN bus and issues motion commands. Simultaneously, it reads real-time information such as encoder position, speed, current, and fault status of each servo motor. The servo controller controls the horn antenna to move at a specified speed from a specified starting position to a specified ending position. The simulator has three directional movements: horizontal movement along the X-axis (length of the first slide rail 200), vertical movement along the Z-axis (length of the second slide rail 300), and horn rotation. These three movements are implemented by the three servo motors respectively. The PLC collects motion information from the dual-ridge horn antenna 510, including X-axis speed, X-axis position, Z-axis speed, Z-axis position, rotation speed, rotation angle, and limit sensor information. The collected information is displayed in real-time on the control panel.

[0050] The PLC uses CAN bus communication to control three servo motors (first drive unit 220, second drive unit 320, and third drive unit 550). It reads the position information from the encoder feedback values ​​of the servo motors, performs PID calculations for the speed and position loops, obtains the speed loop output control signal, and sends motion commands to the servo motor drivers via the CAN bus. The drivers then control the motors according to the received commands. The main control PLC communicates with external components such as encoders and drivers via the CAN bus, calling algorithm programs for real-time processing and calculation. The main motion modes include: motor zeroing mode, horizontal slide rail positioning and movement mode, horizontal slide rail reciprocating movement mode, vertical slide rail positioning and movement mode, horn zeroing mode, horn independent movement angle positioning mode, and horn synchronous rotation mode following the horizontal slide rail. The host computer can control the drive unit to move the horn antenna on the slide rail according to the set speed, direction, and starting position, and displays the horn antenna's position and movement speed in real time, as well as equipment fault alarms and displays indicating control setting errors.

[0051] In one possible implementation, the circuit diagram of the control unit is as follows: Figure 8 As shown.

[0052] like Figure 6 and Figure 7As shown, the control unit can achieve multiple control modes. For example, in motor zeroing mode: after the equipment is powered off after the last use, a zeroing operation should be performed upon power-up to return the equipment to its working origin. The motor starts moving towards the positive limit direction at a preset speed of 0.01 m / s. If it touches the zero-point switch during the process, the motor stops, and zeroing is complete. If it touches the limit device before touching the zero-point switch, the motor moves in the opposite direction until it touches the zero-point switch, and zeroing is complete. Horizontal slide rail positioning and movement mode: After setting the unidirectional target point and speed parameters, click the run button, and the simulation unit 500 will move to the designated position at the set speed. Horizontal slide rail reciprocating movement mode: After setting the bidirectional target point and speed parameters, click the run button, and the simulation unit 500 will reciprocate at the set speed. Vertical slide rail positioning and movement mode: After setting the unidirectional target point and speed parameters, click the run button, and the simulation unit 500 will move to the designated position at the set speed. Horn zeroing mode: In the power-off or non-started state, the simulation unit 500 can be manually rotated to any position. Clicking the zero point button will automatically set that position as the zero point. (Note that after each power-on, the simulation unit 500 will automatically initialize the zero point to the photoelectric switch position.) This button can be used in conjunction with the photoelectric switch to complete the zero point positioning. Simulation unit 500 independent movement angle positioning mode: In this mode, the simulation unit 500 can rotate freely at a set speed. The rotation angle and rotation angular velocity can be set, and the simulation unit 500 will move to the designated angle at the set angular velocity. Simulation unit 500 follows the horizontal slide rail synchronous rotation mode: In the linkage mode between simulation unit 500 and horizontal motor, simulation unit 500 automatically tracks and outputs according to the speed and position of horizontal motor, and simulation unit 500 performs horizontal and rotational movements so that the center point of simulation unit 500 is always aligned with the normal direction of radar seeker.

[0053] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A radar target simulation device, characterized in that, include: Mounting bracket, first slide rail, first slide table, second slide rail, second slide table, rotating device, simulation unit, and control unit; The first slide rail is mounted on the mounting bracket, the first slide table is slidably mounted on the first slide rail, and the first slide table is provided with a first driving device, which drives the first slide table to move on the first slide rail. The second slide rail is disposed on the first slide platform, and the second slide platform is movably disposed on the side of the second slide rail opposite to the first slide platform. The second slide platform is provided with a second driving device, and the second driving device drives the second slide platform to move on the second slide rail. The sliding direction of the first slide table and the sliding direction of the second slide table are at a preset angle, which is 30° to 90°. The simulation unit is rotatably mounted on the second slide via the rotating device. The simulation unit is suitable for simulating radar targets. The rotating device is equipped with a third driving device, which drives the simulation unit to rotate. The mounting frame is equipped with a wave-absorbing device, and the wave-absorbing device and the simulation unit are located on the same side of the mounting frame; The first drive device, the second drive device, and the third drive device are all electrically connected to the control unit; The simulation unit includes a double-ridged horn antenna and an infrared point source; Both the double-ridged horn antenna and the infrared point source are mounted on the rotating device, and both are electrically connected to the control unit. There are two double-ridged horn antennas, and the two double-ridged horn antennas and the infrared point source are arranged longitudinally with the same orientation. The infrared point source is arranged horizontally adjacent to one of the double-ridged horn antennas, and the horizontal distance between the center point of the infrared point source and the center point of the double-ridged horn antenna is 30mm to 60mm. The rotating device is also equipped with a rotating shaft and a gear set; The dual-ridge horn antenna and the infrared point source are both disposed on the side of the rotating shaft, and the third driving device drives the rotating shaft to rotate through the gear set; the gear set includes a driving gear and a driven gear; The rotating device also includes a mounting body connected to the second slide. A rotating shaft is rotatably mounted on the mounting body, with an angle sensor and a driven gear at each end. A third drive device is mounted on the mounting body, with a driving gear at its drive end. The driving gear meshes with the driven gear, allowing the third drive device to drive the rotating shaft to rotate circumferentially. Two double-spine horn wires and an infrared point source are arranged sequentially on the side wall of the rotating shaft to enable the simulation unit to rotate on the second slide. The control unit uses CAN bus communication to control the first, second, and third drive devices, and sends motion commands to the drivers of the first, second, and third drive devices via the CAN bus. The drivers control the motors according to the received commands. The main motion modes when the control unit uses CAN bus communication to control the first, second, and third drive devices are: motor zeroing mode, horizontal slide rail positioning and movement mode, horizontal slide rail reciprocating movement mode, vertical slide rail positioning and movement mode, horn zeroing mode, horn independent movement angle positioning mode, and horn synchronous rotation mode following the horizontal slide rail.

2. The radar target simulation device according to claim 1, characterized in that, The mounting frame includes a load-bearing frame and a support frame; The support frame is connected to the load-bearing frame, the first slide rail is mounted on the support frame, and the first slide table is located on one side of the support frame.

3. The radar target simulation device according to claim 2, characterized in that, The load-bearing frame is equipped with load-bearing wheels; The load-bearing wheels and the support frame are located on opposite sides of the load-bearing frame, and there are two or more load-bearing wheels.

4. The radar target simulation device according to claim 3, characterized in that, The mounting frame also includes a reinforcement frame; The reinforcing frame and the first slide are located on opposite sides of the support frame, and the reinforcing frame is connected to both the support frame and the load-bearing frame.

5. The radar target simulation device according to claim 1, characterized in that, The first slide rail and the second slide rail are respectively provided with a first position sensor and a second position sensor. The first position sensor is used to obtain the position of the first slide table on the first slide rail, and the second position sensor is used to obtain the position of the second slide table on the second slide rail. The rotating device is equipped with an angle sensor, which is used to obtain the rotation angle of the simulation unit; The first position sensor, the second position sensor, and the angle sensor are all electrically connected to the control unit.

6. The radar target simulation device according to any one of claims 1 to 5, characterized in that, Both the first slide rail and the second slide rail are strip-shaped. The first slide table is slidably disposed along the length of the first slide rail body, and the second slide table is slidably disposed along the length of the second slide rail body. The first slide rail is provided with a first limiting device at both ends in the length direction, and the second slide rail is provided with a second limiting device at both ends in the length direction.

7. The radar target simulation device according to claim 6, characterized in that, Both the first limiting device and the second limiting device are photoelectric limiting sensors, and both are electrically connected to the control unit.

8. The radar target simulation device according to claim 7, characterized in that, The mounting bracket is also equipped with a stabilizing device; The second slide rail is slidably connected to the mounting bracket via the stabilizing device.

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