WO2022267971A1 - Système radar tridimensionnel traversant les murs - Google Patents

Système radar tridimensionnel traversant les murs Download PDF

Info

Publication number
WO2022267971A1
WO2022267971A1 PCT/CN2022/099115 CN2022099115W WO2022267971A1 WO 2022267971 A1 WO2022267971 A1 WO 2022267971A1 CN 2022099115 W CN2022099115 W CN 2022099115W WO 2022267971 A1 WO2022267971 A1 WO 2022267971A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio frequency
board
antenna
integrated board
radar system
Prior art date
Application number
PCT/CN2022/099115
Other languages
English (en)
Chinese (zh)
Inventor
杨上元
王生水
宋千
贺玉贵
Original Assignee
湖南华诺星空电子技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖南华诺星空电子技术有限公司 filed Critical 湖南华诺星空电子技术有限公司
Publication of WO2022267971A1 publication Critical patent/WO2022267971A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/887—Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons
    • G01S13/888—Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons through wall detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00

Definitions

  • the invention mainly relates to the technical field of wall-penetrating radar, in particular to a three-dimensional wall-penetrating radar system.
  • each functional module is shielded with a separate structure, and finally fixed on the metal frame (realizing the common ground between the modules), so the weight of the whole machine will be much larger and the structure will be complicated.
  • the ports of the radio frequency circuit can only be connected through radio frequency cables, which increases signal attenuation.
  • the battery is also connected to the core through a long cable, which seriously reduces the power supply efficiency.
  • each circuit module is basically installed with an independent shielding structure.
  • Each module is sealed with a metal structure and then stacked, which will inevitably increase the thickness of the radar. And lead to the heavy weight of the whole machine; or all circuit modules are placed in a metal structure with many small shielding cavities, and finally a large metal plate is needed to fix each module and share the ground, which is also large in size and heavy in weight.
  • the RF cables and other cables between the modules are long and bulky, which will inevitably lead to heavy weight of the whole machine.
  • the battery power supply efficiency is low and the connection is complicated: in the prior art, due to the independent packaging of each module, the battery and the power supply circuit can only be connected and powered by cables, and the loss on the cables is serious, which reduces the battery power supply efficiency ; And the connection of the movement is complicated, which easily leads to connection errors.
  • the technical problem to be solved by the present invention is: aiming at the problems existing in the prior art, the present invention provides a three-dimensional through-wall radar system with simple and compact structure, small volume, light weight, simple and fast connection.
  • a three-dimensional through-the-wall radar system includes a frequency source, a transmitter, a transmitting antenna, a receiving antenna, a receiver, a signal processing board and a power supply, and the frequency source, transmitter and receiver are integrated on the same PCB board to form a radio frequency integration board; the signal processing board is connected to the radio frequency integrated board through an inter-board connector; the power supply is fixed on the radio frequency integrated board and directly connected to the signal processing board through a power interface; the transmitting antenna and The receiving antennas are located on the periphery of the radio frequency integrated board.
  • It also includes a casing, in which the frequency source, transmitter, transmitting antenna, receiving antenna, receiver, signal processing board and power supply are installed.
  • Both the transmitting antenna and the receiving antenna are directly connected to the radio frequency integrated board through a radio frequency connector.
  • Both the transmitting antenna and the receiving antenna are laminated slot-coupling antennas; wherein the slot layer of the laminated slot-coupling antenna is welded to the radio frequency integrated board, and the coupling layer of the stacking slot-coupling antenna is pasted by foam or fixed on the slot layer by a pillar
  • the radio frequency signal on the radio frequency integrated board is directly fed back to the feeding point of the antenna slot layer, and then radiated through the slot on the slot layer to couple to the coupling layer, and then radiated out.
  • the transmitting antenna, the receiving antenna and the signal processing board are fastened on the radio frequency integrated board by fasteners.
  • the fasteners are screws or bolts.
  • the radio frequency integrated board is rectangular in shape as a whole; each of the transmitting antennas is installed on opposite sides of the rectangular radio frequency integrated board, and each of the receiving antennas is installed on the other opposite side of the rectangular radio frequency integrated board;
  • the arrangement shape of the transmitting antenna and the receiving antenna is generally mouth-shaped or mouth-like, forming a uniform or non-uniform equivalent antenna array.
  • An installation hole is provided on the radio frequency integrated board, and the power supply is installed in the installation hole.
  • the present invention has the advantages of:
  • the three-dimensional through-the-wall radar system of the present invention integrates the frequency source, the transmitter and the receiver on the radio frequency integrated board, and the integration degree is high; wherein the radio frequency integrated board is used as the base plate as the support, and the signal processing board, the transmitting antenna and the receiving antenna are all directly Installed on the RF integrated board, no other structural supports are required, and heavy metal shields are no longer needed, saving a lot of metal structures, making the structure simple and compact, and light in weight; the signal processing board and the RF integrated board pass through the inter-board Connectors, antennas and RF integrated boards are connected through connection interfaces, that is, in the form of plug-in, eliminating the connection between various components, the connection is fast and reliable, less prone to errors, and the signal-to-noise ratio is optimized; the connection between the power supply and the signal processing board The power interface adopts the form of plug-in direct connection to reduce the power transmission path loss, and the connection is simple, fast and reliable; all components of the radar system are fixed on the RF integrated
  • the RF integrated board is used as a fixed module, antenna and signal processing board It is directly fixed on the RF integrated board, which further reduces the weight and volume of the whole machine, and realizes the miniaturization and light weight of the three-dimensional imaging radar; both the transmitting antenna and the receiving antenna are installed on the outer periphery of the RF integrated board, and the surrounding area
  • the signal processing board and power supply are placed in the combined area, so as to effectively use the space and further achieve the purpose of light and small radar.
  • the present invention analyzes the working frequency of the radar, and uses the working frequency of the S-band to realize the reduction of the size of the radar transmitting and receiving antenna and the distance between the antennas, thereby reducing the size of the antenna array of the three-dimensional imaging radar, that is, shortening the length of the radar and width.
  • FIG. 1 is a block diagram of functional modules of a radar system in an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of an embodiment of the radar system of the present invention.
  • RF integrated board 11. Frequency source; 12. Transmitter; 13. Receiver; 14. Inter-board connector; 2. Signal processing board; 3. Power supply; 4. Receiving antenna; 5. Transmitting antenna .
  • the three-dimensional through-the-wall radar system of this embodiment includes a frequency source 11, a transmitter 12, a transmitting antenna 5, a receiving antenna 4, a receiver 13, a signal processing board 2 and a power supply 3, wherein the frequency
  • the source 11 is used to provide a radio frequency signal;
  • the transmitter 12 is used to amplify and output the radio frequency signal provided by the frequency source 11;
  • the transmitting antenna 5 is used to radiate the radio frequency signal amplified by the transmitter 12;
  • the receiving antenna 4 is used to The reflected radio frequency signal is sent to the radar receiver 13 for processing;
  • the receiver 13 is used to amplify the received radio frequency echo signal, and down-convert the radio frequency signal to complete the intermediate frequency acquisition; the signal processing board 2.
  • the power supply 3 (such as a battery) is used to supply power to each part of the radar; wherein the frequency source 11, the transmitter 12 and the receiver 13 are integrated
  • a radio frequency integrated board 1 is formed; the signal processing board 2 and the radio frequency integrated board 1 are connected by an inter-board connector 14; the transmitting antenna 5 and the receiving antenna 4 are installed on the periphery of the radio frequency integrated board 1; the power supply 3 It is fixed on the radio frequency integrated board 1, and is directly connected with the signal processing board 2 through the power interface.
  • the radio frequency integrated board 1 needs to be shielded using a metal shield (for example, 0.1 mm thick) for shielding treatment.
  • the three-dimensional wall-penetrating radar system of the present invention integrates the frequency source 11, the transmitter 12 and the receiver 13 on the radio frequency integrated board 1, and the integration degree is high; wherein the radio frequency integrated board 1 is used as the base plate as a support, the signal processing board 2, the transmitter Both the antenna 5 and the receiving antenna 4 are directly installed on the RF integrated board 1, no other structural supports are needed, and heavy metal shields are no longer needed, saving a lot of metal structures, thus making the structure simple and compact, small in size and light in weight;
  • the signal processing board 2 and the radio frequency integrated board 1 are connected through the inter-board connector 14, that is, the inter-board connector 14 is adopted, and the connection between the components is removed, the connection is fast and reliable, and it is not easy to make mistakes, and the signal-to-noise ratio is optimized; the power supply 3
  • the direct connection between the signal processing board 2 and the power interface is adopted to reduce the loss of the power transmission path, and the connection is simple, fast and reliable;
  • the RF integrated board 1 is regarded as a fixed module, and the transceiver antenna (including the transmitting antenna 5 and the receiving antenna 4, the same below) and the signal processing board 2 are directly connected to the RF integrated board 1 Fixed, which further reduces the weight and volume of the whole machine, and realizes the miniaturization and light weight of the 3D imaging radar;
  • Both the transmitting antenna 5 and the receiving antenna 4 are installed on the periphery of the radio frequency integrated board 1, and the area enclosed by the transmitting antenna 5 and the receiving antenna 4 is placed with the signal processing board 2 and the power supply 3, etc. small purpose.
  • the frequency source 11 , the transmitter 12 , the transmitting antenna 5 , the receiving antenna 4 , the receiver 13 , the signal processing board 2 and the power supply 3 are all installed in a casing, and the structure is simple and compact.
  • the transmitting antenna 5 , the receiving antenna 4 and the signal processing board 2 are all fastened on the radio frequency integrated board 1 by fasteners (not shown in the figure).
  • the fastener is a screw or a bolt.
  • the transceiver antenna is fixed on the radio frequency integrated board 1 by screws, and is connected with the radio frequency integrated board 1 by a push-in radio frequency connector.
  • the overall receiving link noise figure will be much smaller ( If there is 1dB line loss between the receiving antenna 4 and the receiving link, then the receiving link noise figure will increase by 1dB), that is to say, such processing can ensure that the actual transmitting power of the transmitting antenna 5 is sufficient, and at the same time, the signal of the received signal
  • the noise ratio has been optimized to a certain extent.
  • the transceiver antenna adopts the form of a laminated slot-coupled antenna, and the slot layer of the transceiver antenna is welded to the radio frequency integrated board 1, and the radio frequency signal on the radio frequency integrated board 1 is directly fed back to the antenna slot layer through the via hole
  • the feed point is connected and conducted, and the antenna coupling layer is pasted with foam or fixed on the radio frequency integrated board 1 through pillars.
  • the laminated slot coupling antenna is a conventional antenna, which specifically includes two PCBs, the lower one is a slot layer, the upper one is a coupling layer, and there is a certain air gap in the middle (the air gap can be filled with foam materials, and the two layers are passed through high temperature resistant glue. fixed on the foam material, and can also be fixed by adding pillars between the two layers), the radio frequency signal on the radio frequency integrated board 1 is connected to the gap layer, and the radio frequency signal is coupled to the coupling layer through the gap radiation on the gap layer, and finally Radiate out.
  • the radio frequency integrated board 1 is rectangular as a whole; each transmitting antenna 5 is installed on the opposite sides of the rectangular radio frequency integrated board 1, and each receiving antenna 4 is installed on the other opposite side of the rectangular radio frequency integrated board 1.
  • the arrangement shapes of the transmitting antennas 5 and the receiving antennas 4 are generally in the shape of a "mouth” or similar to a "mouth”.
  • the transmission channel adopts the time-division mode, and multi-channel reception works at the same time to collect data.
  • the "mouth"-shaped antenna structure is designed, and the transceiver antenna is located around the radio frequency integrated board 1. In the area surrounded by the transceiver antenna, it can be used to place signals.
  • the processing board 2 and the power supply 3, etc., compared with the traditional antenna surface where other modules cannot be placed, the above design can effectively use the space and achieve the purpose of light and small radar.
  • the size of the three-dimensional imaging antenna array can be kept small.
  • the radar detection effect is the best, then when the radar operating frequency increases, the corresponding wavelength becomes shorter, so that the distance between the antennas can be shortened sharply, so that Miniaturized antenna array. Therefore, the operating frequency of the radar adopts the S-band frequency; the distance between the transmitting antennas 5 and the distance between the receiving antennas 4 is half a wavelength, and on the basis of ensuring three-dimensional imaging, the size of the antenna array is greatly reduced to realize the radar Reduction in overall length and width.
  • the radio frequency integrated board 1 is provided with a mounting hole, and the power supply 3 (such as a battery) is installed in the mounting hole, and then directly supplies power to the core of the signal processing board 2 after the battery interface is plugged in, which is extremely large.
  • the power supply path is shortened, and the battery power supply efficiency is improved. All the power 3 and control signals of the RF integrated board 1 are provided by the signal processing board 2 , and the data collected by the ADC on the RF integrated board 1 is transmitted through the inter-board connector 14 .
  • All parts of the present invention are locked on the radio frequency integrated board 1 by fasteners (such as screws) for fixing, no metal fixing plate is needed, and no external cables are used to connect each module, clean and tidy, more stable and reliable, and the core
  • the overall thickness has also been extremely compressed; the design of the present invention has achieved a relatively large reduction in the length, width and thickness of the radar, the internal movement is connected simply, and the weight of the whole machine has also been significantly reduced.
  • the purpose of miniaturization and light weight design makes the radar more portable, stable and reliable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Un système radar tridimensionnel traversant les murs est divulgué dans la présente invention, comprenant une source de fréquence (11), un émetteur (12), des antennes d'émission (5), des antennes de réception (4), un récepteur (13), une carte de traitement de signal (2) et une alimentation électrique (3). La source de fréquence (11), l'émetteur (12), et le récepteur (13) sont intégrés sur une même PCB pour former une carte intégrée à radiofréquence (1) ; la carte de traitement de signal (2) et la carte intégrée à radiofréquence (1) sont connectées au moyen d'un connecteur intercarte (14) ; l'alimentation électrique (3) est fixée sur la carte intégrée à radiofréquence (1), et est directement connectée à la carte de traitement de signal (2) au moyen d'une interface d'alimentation électrique ; et les antennes d'émission (5) et les antennes de réception (4) se situent toutes sur la périphérie de la carte intégrée à radiofréquence (1). La présente invention présente les avantages tels qu'une structure simple et compacte, un poids léger, et une connexion simple et rapide.
PCT/CN2022/099115 2021-06-22 2022-06-16 Système radar tridimensionnel traversant les murs WO2022267971A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110688373.2A CN113253263B (zh) 2021-06-22 2021-06-22 一种三维穿墙雷达系统
CN202110688373.2 2021-06-22

Publications (1)

Publication Number Publication Date
WO2022267971A1 true WO2022267971A1 (fr) 2022-12-29

Family

ID=77189064

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/099115 WO2022267971A1 (fr) 2021-06-22 2022-06-16 Système radar tridimensionnel traversant les murs

Country Status (2)

Country Link
CN (1) CN113253263B (fr)
WO (1) WO2022267971A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113253263B (zh) * 2021-06-22 2021-10-15 湖南华诺星空电子技术有限公司 一种三维穿墙雷达系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107479657A (zh) * 2017-08-18 2017-12-15 郑州云海信息技术有限公司 一种实现cpu主板与硬盘背板互联的装置及其使用方法
US20180136327A1 (en) * 2016-11-15 2018-05-17 Toyota Motor Engineering & Manufacturing North America, Inc. Compact multi range automotive radar assembly with end-fire antennas on both sides of a printed circuit board
CN109061623A (zh) * 2018-06-25 2018-12-21 南京信息工程大学 一种应用于无人机的平面集成式微波测高雷达及测量方法
CN111443347A (zh) * 2020-03-17 2020-07-24 山东省科学院自动化研究所 一种便携式单手持穿墙雷达目标检测装置及目标检测方法
CN113253263A (zh) * 2021-06-22 2021-08-13 湖南华诺星空电子技术有限公司 一种三维穿墙雷达系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203837742U (zh) * 2014-02-18 2014-09-17 北京经纬恒润科技有限公司 一种基于模块化的监测装置
CN106646464A (zh) * 2016-12-29 2017-05-10 湖南华诺星空电子技术有限公司 一种便携式3d穿墙成像雷达
CN106845219B (zh) * 2017-01-13 2019-05-10 北京科技大学 一种针对多种类型数据的入侵检测智能设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180136327A1 (en) * 2016-11-15 2018-05-17 Toyota Motor Engineering & Manufacturing North America, Inc. Compact multi range automotive radar assembly with end-fire antennas on both sides of a printed circuit board
CN107479657A (zh) * 2017-08-18 2017-12-15 郑州云海信息技术有限公司 一种实现cpu主板与硬盘背板互联的装置及其使用方法
CN109061623A (zh) * 2018-06-25 2018-12-21 南京信息工程大学 一种应用于无人机的平面集成式微波测高雷达及测量方法
CN111443347A (zh) * 2020-03-17 2020-07-24 山东省科学院自动化研究所 一种便携式单手持穿墙雷达目标检测装置及目标检测方法
CN113253263A (zh) * 2021-06-22 2021-08-13 湖南华诺星空电子技术有限公司 一种三维穿墙雷达系统

Also Published As

Publication number Publication date
CN113253263B (zh) 2021-10-15
CN113253263A (zh) 2021-08-13

Similar Documents

Publication Publication Date Title
KR101605218B1 (ko) 밀리미터파 유전체 내 전송 장치 및 그 제조 방법, 및 무선 전송 장치 및 무선 전송 방법
US10601129B2 (en) MIMO antenna device and mobile communication device
CN113437501B (zh) 一种小型化高集成天线接口模块
WO2022267971A1 (fr) Système radar tridimensionnel traversant les murs
WO2020259001A1 (fr) Antenne de filtrage et dispositif de station de base
US20220320724A1 (en) Antenna assembly and electronic device
WO2012070242A1 (fr) Dispositif sans fil
WO2021022484A1 (fr) Antenne et station de base
CN111864341A (zh) 天线组件及电子设备
JP2000307341A (ja) アンテナ装置
CN115566443A (zh) 一种高集成模块化有源相控阵天线子阵
JP3493254B2 (ja) 携帯無線端末
CN219696701U (zh) 一种低剖面有源相控阵天线结构
WO2024037391A1 (fr) Structure d'antenne et système monté sur véhicule
CN113126074A (zh) X波段高集成度两维相控阵雷达射频前端
JPH0983232A (ja) 基板埋込型アンテナ及び該アンテナを内蔵した携帯無線電話端末
CN110601705B (zh) 一种相控阵多波束射频接收组件
CN215418613U (zh) 一种电视机及天线模组
CN211088510U (zh) 一种天线装置和相控阵天线
CN114498017A (zh) 一种易加工的毫米波有源双极化天线
KR100883954B1 (ko) 원편파 안테나, 중계기 용 안테나 및 이를 이용하는중계기와 이동 통신 시스템
CN111463557A (zh) 一种基于aip架构的一体化集成电扫阵列天线
CN218415025U (zh) 一种x波段天馈系统
CN221080369U (zh) 一种巴伦集成的低频振子辐射单元及基站天线
CN220874530U (zh) 瓦片式接收组件及相控阵系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22827466

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE