Target detection system based on small radar

Abstract

The utility model relates to a target detection system based on a small radar, belongs to the technical field of radar phased array devices, and solves the problem that a target detection system which is small in size, light in weight, low in power consumption and good in environmental adaptability is lacked in the prior art. The system comprises an aircraft, a radar device and an upper computer platform, the upper surface of the radar device is provided with an upper computer connection interface, and the upper computer connection interface comprises a floating connector. A fixed connector is arranged below the upper computer platform; the floating connector is inserted into a fixed connector below the upper computer platform; the four corners of the upper surface of the radar device are each provided with a fixing piece outwards. The radar device is fixedly connected with the upper computer platform through the fixing sheet; a 2mm air layer is reserved between the upper surface of the radar device and the upper computer platform; the upper computer platform is mounted on the lower surface of the aircraft; the aircraft is provided with an IMU inertial navigation system and a GPS positioning device. The target detection system based on the small radar is realized.

Description

Technical Field

[0001] This utility model relates to the field of radar phased array device technology, and in particular to a target detection system based on a small radar. Background Technology

[0002] Radar, as an important detection technology, has been widely used in various fields such as transportation, resource exploration, and meteorology. With continuous technological advancements, radar technology will continue to develop and improve, making even greater contributions to the development of human society.

[0003] Radar installed on aircraft can perform a variety of functions, including obstacle avoidance, target detection, tracking and positioning.

[0004] However, the special application scenarios of radar installed on aircraft require radar devices to have characteristics such as small size, light weight, low power consumption, good sealing and high stability. Utility Model Content

[0005] Based on the above analysis, this utility model aims to provide a target detection system based on a small radar to solve the problem of the lack of a target detection system in the prior art that is small in size, light in weight, low in power consumption, and has good environmental adaptability.

[0006] The objective of this utility model is mainly achieved through the following technical solutions:

[0007] A target detection system based on a small radar includes an aircraft, a radar device, and a host computer platform. The upper surface of the radar device has a host computer connection interface, which includes a floating connector. A fixed connector is located below the host computer platform. The floating connector and the fixed connector below the host computer platform are interlocked. A fixing plate is located at each of the four corners of the upper surface of the radar device, extending outwards. The radar device is fixedly connected to the host computer platform via these fixing plates. A 2mm air gap exists between the upper surface of the radar device and the host computer platform. The host computer platform is mounted on the lower surface of the aircraft. An IMU inertial navigation system and a GPS positioning device are installed on the aircraft.

[0008] Furthermore, the radar device includes a housing; the housing of the radar device has a rear-end opening structure; the upper surface of the radar device housing is U-shaped; the radar device also includes a power supply assembly; the power supply assembly includes a cover plate, a housing, and a circuit board, the cover plate of the power supply assembly includes a cover body and an upper fixing end, the cover plate of the power supply assembly is an integral structure; the upper fixing end is a rectangular ring plate with threaded holes and through holes on both sides, the upper fixing end is located in the middle of the upper edge of the cover body of the power supply assembly, perpendicular to the cover body of the power supply assembly; the cover plate covers the opening side of the housing, and the upper fixing end is located on the outside of the housing; the power supply assembly circuit board is provided in the housing of the power supply assembly; the cover plate of the power supply assembly serves as the rear cover plate of the radar device housing, forming a sealed structure with the housing of the radar device.

[0009] Furthermore, the floating connector of the radar device's host computer connection interface is installed inside the rectangular ring plate on the fixed end of the power supply assembly. The upper surface of the power supply assembly housing has a rectangular opening, and the cable below the floating connector passes through the rectangular opening on the upper surface of the power supply assembly housing and connects to the power supply assembly circuit board.

[0010] Furthermore, the floating connector includes a flange, left and right positioning posts, left and right steel sleeves, and left and right screws; the flange has two through holes on the left and right sides; the left and right steel sleeves are respectively disposed in the left and right through holes of the flange; the screws of the left and right screws pass through the left and right steel sleeves and are installed in the threaded holes at the fixed end of the power assembly cover plate; left and right positioning posts are disposed between the left and right steel sleeves on the lower surface of the flange; an annular groove is also provided on the rectangular ring plate at the fixed end of the power assembly cover plate; the annular groove is disposed around the flange of the floating connector, and an O-ring is disposed in the annular groove.

[0011] Furthermore, first and second locating pins are installed at the two front corners of the upper surface of the radar device housing; first and second locating pin mounting holes are provided on the mounting surface of the lower surface of the host computer platform. The first and second locating pins are installed in the first and second locating pin mounting holes with an interference fit. The parallelism error between the plane formed by the central axis of the first and second locating pins and the front surface of the radar device housing is within 0.05mm.

[0012] Furthermore, the first and second locating pins are made of stainless steel; the front surface of the radar device housing is made of quartz fiber composite material, and the rest of the material is aluminum alloy 6063-T6.

[0013] Furthermore, the radar device also includes a phased array antenna feed assembly, a frequency synthesizer transceiver assembly, an acquisition and control assembly, and a signal processing assembly; the phased array antenna feed assembly includes a circuit board; a partition is provided inside the radar device housing, and the circuit board of the phased array antenna feed assembly is located on one side of the partition inside the radar device housing near the front surface of the housing, while the frequency synthesizer transceiver assembly, the acquisition and control assembly, and the signal processing assembly are sequentially located on the other side of the partition; the frequency synthesizer transceiver assembly, the acquisition and control assembly, and the power supply assembly all include a housing and a circuit board located inside the housing.

[0014] Furthermore, multiple rectangular openings are provided on the surfaces of the partition, the frequency transceiver assembly housing, and the acquisition and control assembly housing; high-speed connectors KK are provided on the circuit boards of the phased array antenna feed assembly, the frequency transceiver assembly, and the acquisition and control assembly; the high-speed connectors KK on the circuit boards of the phased array antenna feed assembly and the frequency transceiver assembly respectively pass through the rectangular openings of the partition and the rectangular openings of the frequency transceiver assembly housing facing the partition; the high-speed connectors KK between the circuit boards of the frequency transceiver assembly and the acquisition and control assembly pass through the rectangular openings on the corresponding housings and are inserted into each other.

[0015] Furthermore, a 0.2mm gap is reserved between the radar device housing and the power supply component cover for filling with silicone rubber for sealing; the power supply component housing thickness is 0.8mm; the distance between the front surface of the frequency transceiver component housing and the partition is 1mm; the rear surface of the frequency transceiver component housing is in contact with the front surface of the acquisition and control component housing.

[0016] Furthermore, the frequency synthesizer transceiver circuit board includes a Zynq SoC chip; the pins of the Zynq SoC chip are electrically connected to the high-speed connector KK disposed on the frequency synthesizer transceiver circuit board.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] 1. The radar device in the detection system of this utility model has low power consumption and high stability. The peak power consumption during normal operation is 80W, and the ambient temperature during normal operation does not exceed 45℃. The structural material is preferably high heat rate aluminum alloy 6063. Through heat radiation and conduction and other measures, the radar device can meet the requirement of continuous operation for no less than 30 minutes.

[0019] 2. The radar device in this detection system is designed as a cuboid structure, with a power supply component housing thickness of 0.8mm; the distance between the front surface of the frequency transceiver assembly housing and the partition is 1mm; the rear surface of the frequency transceiver assembly housing is in contact with the front surface of the acquisition and control component housing. It features a compact structure, small size, and light weight; the radar device's dimensions (length × width × height) are ≤140mm × 70mm × 100mm; the radar device weighs ≤1.5kg. The miniaturization and lightweight design of the radar device result in a wide detection range and good applicability for the entire detection system.

[0020] 3. A 0.2mm gap is reserved between the radar device housing and the power supply component cover for sealing with silicone rubber. A floating connector is used to connect with the upper computer platform fixed connector on the lower surface of the UAV. The floating connector has O-rings around its periphery that connect to the connector groove on the upper computer platform's mating surface to achieve a seal. This ensures that the radar device meets the requirement of a waterproof capability of not less than 20 meters.

[0021] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0023] Figure 1 A top view of a target detection system based on a small radar;

[0024] Figure 2 A schematic diagram of the power supply component of a target detection system based on a small radar.

[0025] Figure 3 This is a schematic diagram of the housing of a radar component in a target detection system based on a small radar.

[0026] Figure label:

[0027] 1-Fixing plate;

[0028] 2-Positioning pin;

[0029] 3-Cap;

[0030] 4-Radar device housing;

[0031] 5 - Left and right positioning posts;

[0032] 6 - Left and right screws;

[0033] 7- Annular groove;

[0034] 8-Upper fixed end;

[0035] 9-Power supply assembly housing;

[0036] 10 - Upper surface of radar device housing;

[0037] 11 - Front surface of radar device housing. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0039] A specific embodiment of this utility model discloses a target detection system based on a small radar, the top view of which is shown below. Figure 1 As shown.

[0040] The system includes an aircraft, a radar device, and a host computer platform. The radar device has a host computer connection interface on its upper surface, which includes a floating connector. A fixed connector is located below the host computer platform. The floating connector and the fixed connector below the host computer platform are interlocked. A fixing plate 1 is located at each of the four corners of the radar device's upper surface, pointing outwards. The radar device is fixedly connected to the host computer platform via the fixing plates 1. A 2mm air gap is maintained between the upper surface of the radar device and the host computer platform. The host computer platform is mounted on the lower surface of the aircraft. An IMU inertial navigation system and a GPS positioning device are installed on the aircraft.

[0041] Specifically, once the aircraft is airborne, it rotates by changing the speed and direction of its rotors, thereby driving the radar device to achieve 360-degree detection. The aircraft is equipped with an inertial measurement unit (IMU) and a global positioning system (GPS); GPS can provide accurate geographical location even in near-Earth space; the IMU works in conjunction with the GPS system to improve the accuracy of position and orientation.

[0042] The host computer generates actual target information, including target distance, azimuth, pitch angle, heading, and speed, based on the current position and flight direction provided by the aircraft and the target parameters uploaded by the radar device, in order to achieve the purpose of target detection.

[0043] Specifically, the radar device is connected to the fixed connector of the host computer platform via a floating connector. After the floating connector and the fixed connector are electrically connected, the radar device is then fixed to the host computer platform via four corner fixing pieces 1. The floating connector is designed so that its vertical position can be finely adjusted, which makes the cooperation between the radar device and the host computer platform during the installation process more adaptable and allows for higher processing errors.

[0044] The radar device includes a housing; the housing of the radar device has a rear-end opening structure; the upper surface 10 of the radar device housing is U-shaped; the radar device also includes a power supply assembly; the power supply assembly includes a cover plate, a housing, and a circuit board; the cover plate of the power supply assembly includes a cover body 3 and an upper fixing end 8, and the cover plate of the power supply assembly is an integral structure; the upper fixing end 8 is a rectangular ring with threaded holes and through holes on both sides, and the upper fixing end 8 is located in the middle of the upper edge of the cover body 3 of the power supply assembly, perpendicular to the cover body 3 of the power supply assembly; the cover plate covers the opening side of the housing, and the upper fixing end 8 is located on the outside of the housing; the power supply assembly circuit board is provided in the power supply assembly housing 9; the cover plate of the power supply assembly serves as the rear cover plate of the radar device housing 4, forming a sealed structure with the radar device housing.

[0045] A schematic diagram of the radar component housing is shown below. Figure 3 As shown.

[0046] A schematic diagram of the power supply component is shown below. Figure 2 As shown.

[0047] Specifically, the upper surface 10 of the radar device housing is U-shaped, with the recessed portion reserving installation space for the fixing end 8 of the power supply component cover, forming a sealed structure. The radar device housing has a rear-end opening structure, and the front surface 11 of the radar device housing is made of quartz fiber composite material skin, with the skin surface painted. The radar device housing 4 is made of aluminum alloy on the top, bottom, left, and right sides. The skin and aluminum alloy are bonded together to form an integrated structure. The circuit board of the phased array antenna feed assembly is located on the side near the front surface 11 of the radar device housing. The circuit board of the phased array antenna feed assembly includes an antenna, a phased array transceiver, a feed network, and a beam control; the beam control is used for pointing control of the antenna's transmitting and receiving beams; the feed network is used to distribute the transmitted signal from the frequency synthesizer transceiver assembly to the transmitting end of the phased array transceiver, and to synthesize and output the received signal from the phased array transceiver to the receiving end of the frequency synthesizer transceiver assembly; the phased array transceiver is used to amplify and output the transmitted signal from the transmitting end of the frequency synthesizer transceiver assembly and amplify the received signal from the antenna. The front surface is made of quartz fiber composite material to increase the antenna's transmit and receive rates.

[0048] The radar device also includes a phased array antenna feed assembly, a frequency synthesizer transceiver assembly, an acquisition and control assembly, and a signal processing assembly; the phased array antenna feed assembly includes a circuit board; a partition is provided inside the radar device housing 4, and the circuit board of the phased array antenna feed assembly is located on the side of the partition inside the radar device housing 4 near the front surface of the housing, while the frequency synthesizer transceiver assembly, the acquisition and control assembly, and the signal processing assembly are sequentially located on the other side of the partition; the frequency synthesizer transceiver assembly, the acquisition and control assembly, and the power supply assembly all include a housing and a circuit board located inside the housing.

[0049] Specifically, the radar device is designed with a cuboid structure, with the power supply component housing 9 having a thickness of 0.8mm; the distance between the front surface of the frequency transceiver assembly housing and the partition is 1mm; the rear surface of the frequency transceiver assembly housing is in contact with the front surface of the acquisition and control component housing. It has a compact structure, small size, and light weight; the radar device's dimensions (length × width × height) are ≤140mm × 70mm × 100mm; the radar device weighs ≤1.6kg.

[0050] The floating connector of the radar device's host computer connection interface is installed inside the rectangular ring plate of the fixed end 8 on the power supply assembly. The upper surface of the power supply assembly box 9 has a rectangular opening. The cable below the floating connector passes through the rectangular opening on the upper surface of the power supply assembly box 9 and connects to the power supply assembly circuit board.

[0051] Specifically, the radar device of this invention adopts a three-proof design: moisture-proof, salt spray-proof, and mold-proof. This three-proof design includes protection for components and materials, process protection, and structural protection; exposed internal wires, solder joints, and electrical fixing points are coated with lubricating grease; when selecting metal materials and their protective layers, different metals are prevented from contact corrosion by applying adhesive; the skin is made of corrosion-resistant, aging-resistant, moisture-proof, and mold-resistant materials, and the lubricating grease has excellent moisture-proof and mold-proof properties; the cable routing is fixed with a positioning device to prevent displacement under mechanical conditions. The radar uses a standardized connector interface, including cable interfaces and multi-core socket interfaces, for easy maintenance and replacement.

[0052] The floating connector includes a flange, left and right positioning posts 5, left and right steel sleeves, and left and right screws 6; the flange has two through holes on the left and right; the left and right steel sleeves are respectively set in the left and right through holes of the flange; the screws of the left and right screws 6 pass through the left and right steel sleeves and are installed in the threaded holes of the fixed end 8 on the power assembly cover plate; the left and right positioning posts 5 are set between the left and right steel sleeves on the lower surface of the flange; the rectangular ring plate of the fixed end 8 on the power assembly cover plate is also provided with an annular groove 7; the annular groove 7 is set on the periphery of the floating connector flange, and an O-ring is provided in the annular groove 7.

[0053] Specifically, an O-ring is provided around the floating connector, the floating connector protrudes from the upper surface of the radar device, and the fixed connector is set in the groove of the host computer platform. The O-ring achieves a seal between the floating connector and the fixed connector.

[0054] The radar device housing has two front corners on its upper surface 10 with first and second positioning pins 2 installed. The upper computer platform has mounting holes for the first and second positioning pins 2 on its lower surface. The first and second positioning pins 2 are installed in the mounting holes with an interference fit. The plane formed by the central axis of the first and second positioning pins 2 has a parallelism error of less than 0.05 mm with the front surface of the radar device housing 4.

[0055] Specifically, after the positioning pin 2 is installed, the plane formed by the central axis of the first and second positioning pins 2 and the front surface 11 of the radar device housing have a parallelism error within 0.05mm, which ensures that the azimuth and pitch angles of the aircraft and the radar device are consistent, making it convenient for the horizontal and pitch angles of the target detected by the radar device to be combined with the IMU inertial navigation system and GPS positioning device on the aircraft to generate actual target information.

[0056] The first and second positioning pins 2 are made of stainless steel; the front surface 11 of the radar device housing is made of quartz fiber composite material, and the rest of the material is aluminum alloy 6063-T6.

[0057] Specifically, since the first and second positioning pins 2 are installed with the UAV platform using an interference fit, stainless steel with relatively high hardness is used to ensure a tight fit. The main parts of the radar device housing 4 are made of aluminum alloy, which reduces weight and provides electromagnetic shielding. The front surface is made of quartz fiber composite material, a non-metallic material, which improves the antenna's transmit and receive radiation efficiency.

[0058] Multiple rectangular openings are provided on the surfaces of the partition, the frequency transceiver assembly housing, and the acquisition and control assembly housing; high-speed connectors KK are provided on the circuit boards of the phased array antenna feed assembly, the frequency transceiver assembly, and the acquisition and control assembly; the high-speed connectors KK on the circuit boards of the phased array antenna feed assembly and the frequency transceiver assembly respectively pass through the rectangular openings of the partition and the rectangular openings of the frequency transceiver assembly housing facing the partition; the high-speed connectors KK between the circuit boards of the frequency transceiver assembly and the acquisition and control assembly pass through the rectangular openings on the corresponding housings and are inserted into each other.

[0059] Specifically, to save space and reduce weight, the radar device features a highly integrated, cableless design for all components, with vertical interconnection reducing cable usage. The high-speed connector KK offers advantages such as small size, stable structure, and suitability for high-speed data transmission.

[0060] A 0.2mm gap is reserved between the radar device housing 4 and the power supply component cover for filling with silicone rubber for sealing; the power supply component box 9 has a thickness of 0.8mm; the distance between the front surface of the frequency transceiver component housing and the partition is 1mm; the rear surface of the frequency transceiver component housing is in contact with the front surface of the acquisition and control component housing.

[0061] Specifically, a 0.2mm gap is reserved between the radar device housing 4 and the power supply component cover for filling with silicone rubber for sealing; at the same time, the number of segmented surfaces on the radar device surface is minimized, with only an electrical interface (with an O-ring installed) with the host computer platform. Therefore, the radar device provided in this embodiment has good airtightness and watertightness.

[0062] The frequency synthesizer transceiver circuit board includes a Zynq SoC chip; the pins of the Zynq SoC chip are electrically connected to the high-speed connector KK provided on the frequency synthesizer transceiver circuit board.

[0063] Specifically, the Zynq SoC chip is a highly integrated, small-sized, and low-power chip that greatly reduces the size and weight of radar devices.

[0064] Compared with existing technologies, the radar device provided in this embodiment has low power consumption and high stability, with a peak power consumption of 80W during normal operation and an ambient temperature not exceeding 45℃ during normal operation. The preferred structural material is high-heat-rate aluminum alloy 6063. Through heat radiation and conduction measures, the radar device can meet the requirement of continuous operation for no less than 30 minutes. The radar device provided in this embodiment is designed with a cuboid structure. The power supply component housing 9 has a thickness of 0.8mm; the distance between the front surface of the frequency transceiver component housing and the partition is 1mm; the rear surface of the frequency transceiver component housing contacts the front surface of the acquisition and control component housing. It has a compact structure, small size, and light weight; the radar device's dimensions (length × width × height) are ≤140mm × 70mm × 100mm; the radar device's weight is ≤1.6kg. A 0.2mm gap is reserved between the radar device housing 4 and the power supply component cover surface for filling with silicone rubber for sealing; a floating connector is used to connect with the upper computer platform fixed connector on the lower surface of the UAV. O-rings are provided around the floating connector to achieve a seal with the connector groove on the upper computer platform's mating surface. This ensures that the radar device meets the requirement of a waterproof capability of no less than 20 meters.

[0065] Those skilled in the art will understand that the programs / software involved in the above embodiments are common methods in the prior art. This utility model does not involve any software improvements. This utility model only requires connecting various devices with corresponding functions through the connection relationships given in the embodiments of this utility model, without involving any program or software improvements. As for the connection methods between the various hardware devices with corresponding functions, these can all be implemented by those skilled in the art using existing technology, and will not be described in detail here.

[0066] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A target detection system based on a small radar, characterized in that, The system includes an aircraft, a radar device, and a host computer platform. The upper surface of the radar device has a host computer connection interface, which includes a floating connector. A fixed connector is located below the host computer platform. The floating connector and the fixed connector below the host computer platform are interlocked. A fixing plate is located at each of the four corners of the upper surface of the radar device, pointing outwards. The radar device is fixedly connected to the host computer platform via these fixing plates. A 2mm air gap exists between the upper surface of the radar device and the host computer platform. The host computer platform is mounted on the lower surface of the aircraft. An IMU inertial navigation system and a GPS positioning device are installed on the aircraft.

2. The target detection system based on a small radar according to claim 1, characterized in that, The radar device includes a housing; the housing has a rear-end opening structure; the upper surface of the housing is U-shaped; the radar device also includes a power supply assembly; the power supply assembly includes a cover plate, a housing, and a circuit board; the cover plate includes a cover body and an upper fixing end, and the cover plate is an integral structure; the upper fixing end is a rectangular ring with threaded holes and through holes on both sides, and is located at the middle of the upper edge of the cover body, perpendicular to the cover body; the cover plate covers the opening side of the housing, and the upper fixing end is located on the outside of the housing; the circuit board of the power supply assembly is disposed in the housing; the cover plate of the power supply assembly serves as the rear-end cover of the radar device housing, forming a sealed structure with the radar device housing.

3. The target detection system based on a small radar according to claim 2, characterized in that, The floating connector of the radar device's host computer connection interface is installed inside the rectangular ring plate on the fixed end of the power supply assembly. The upper surface of the power supply assembly housing has a rectangular opening, and the cable below the floating connector passes through the rectangular opening on the upper surface of the power supply assembly housing to connect to the power supply assembly circuit board.

4. The target detection system based on a small radar according to claim 3, characterized in that, The floating connector includes a flange, left and right positioning posts, left and right steel sleeves, and left and right screws; the flange has two through holes on the left and right sides; the left and right steel sleeves are respectively set in the left and right through holes of the flange; the screws of the left and right screws pass through the left and right steel sleeves and are installed in the threaded holes of the fixed end of the power assembly cover plate; left and right positioning posts are set between the left and right steel sleeves on the lower surface of the flange; the rectangular ring plate of the fixed end of the power assembly cover plate is also provided with an annular groove; the annular groove is set on the periphery of the floating connector flange, and an O-ring is provided in the annular groove.

5. The target detection system based on a small radar according to claim 1, characterized in that, The radar device housing is equipped with first and second locating pins at the two front corners of the upper surface; the upper computer platform has first and second locating pin mounting holes on the mounting surface of the lower surface. The first and second locating pins are installed in the first and second locating pin mounting holes with an interference fit. The parallelism error between the plane formed by the central axis of the first and second locating pins and the front surface of the radar device housing is within 0.05mm.

6. The target detection system based on a small radar according to claim 5, characterized in that, The first and second locating pins are made of stainless steel; the front surface of the radar device housing is made of quartz fiber composite material, and the rest of the housing is made of aluminum alloy 6063-T6.

7. The target detection system based on a small radar according to claim 2, characterized in that, The radar device also includes a phased array antenna feed assembly, a frequency synthesizer transceiver assembly, an acquisition and control assembly, and a signal processing assembly; the phased array antenna feed assembly includes a circuit board; a partition is provided inside the radar device housing, and the circuit board of the phased array antenna feed assembly is located on the side of the partition inside the radar device housing near the front surface of the housing, while the frequency synthesizer transceiver assembly, the acquisition and control assembly, and the signal processing assembly are sequentially located on the other side of the partition; the frequency synthesizer transceiver assembly, the acquisition and control assembly, and the power supply assembly all include a housing and a circuit board located inside the housing.

8. The target detection system based on a small radar according to claim 7, characterized in that, Multiple rectangular openings are provided on the surfaces of the partition, the frequency transceiver assembly housing, and the acquisition and control assembly housing; high-speed connectors KK are provided on the circuit boards of the phased array antenna feed assembly, the frequency transceiver assembly, and the acquisition and control assembly; the high-speed connectors KK on the circuit boards of the phased array antenna feed assembly and the frequency transceiver assembly respectively pass through the rectangular openings of the partition and the rectangular openings of the frequency transceiver assembly housing facing the partition; the high-speed connectors KK between the circuit boards of the frequency transceiver assembly and the acquisition and control assembly pass through the rectangular openings on the corresponding housings and are inserted into each other.

9. The target detection system based on a small radar according to claim 7, characterized in that, A 0.2mm gap is reserved between the radar device housing and the power supply component cover for filling with silicone rubber for sealing; the power supply component housing thickness is 0.8mm; the distance between the front surface of the frequency transceiver component housing and the partition is 1mm; the rear surface of the frequency transceiver component housing is in contact with the front surface of the acquisition and control component housing.

10. The target detection system based on a small radar according to claim 8, characterized in that, The frequency synthesizer transceiver circuit board includes a Zynq SoC chip; the pins of the Zynq SoC chip are electrically connected to the high-speed connector KK provided on the frequency synthesizer transceiver circuit board.

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