CN105093219A - Continuous wave radar through-wall detection system - Google Patents
Continuous wave radar through-wall detection system Download PDFInfo
- Publication number
- CN105093219A CN105093219A CN201510407258.8A CN201510407258A CN105093219A CN 105093219 A CN105093219 A CN 105093219A CN 201510407258 A CN201510407258 A CN 201510407258A CN 105093219 A CN105093219 A CN 105093219A
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- radar
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- millimeter
- continuous wave
- wall detection
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- 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
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a continuous wave radar through-wall detection system comprising a radar head device and a plurality of display devices. The system is characterized in that a millimeter-wave transceiver module, a transmitting antenna and a receiving antenna are arranged on the radar head device. The millimeter-wave transceiver module includes a transmitting part and a receiving part; the transmitting part contains a sweeping frequency source, a coupler, and a power amplifier, wherein the sweeping frequency source, the coupler, and the power amplifier are successively connected; and the receiving part includes a low-noise amplifier, an image rejection mixer, a band rejection filter, an intermediate-frequency matching filter and a hand-operated gain control circuit. And the display devices receive images and data from the radar head device by a wireless transmission module. According to the invention, because of multiple display devices, a target can be detected by the user at different positions. The detection radar with the millimeter-wave frequency-modulation continuous wave system can meet requirements of high-resolution imaging and target identification of through-wall detection; and a saturated phenomenon during short-distance target detection by the radar can be avoided.
Description
Technical field
The present invention relates to a kind of radar-probing system, specifically a kind of continuous wave radar through-wall detection system.
Background technology
In recent years. the aspects such as anti-terrorism in the world, anti-riot, the disaster relief, to the demand of equipment, facilitate the development of through-wall detection technology.Because millimetre-wave radar orientation accuracy is high, radar cross section is large, antijamming capability is strong, the ability of metal target and surrounding environment of distinguishing is strong, these are all that through-wall detection provides good technical foundation, prior art is traditional many radar heads multi-display system, this type of multidisplay system passes through change-over switch, the radar head of specifying and the display of specifying is allowed to connect into a radar system, in continuous wave radar, what receiver detected is difference frequency, the method for sensitivity time control circuit can not be adopted dynamic range expanded.
Summary of the invention
The object of the present invention is to provide a kind of continuous wave radar through-wall detection system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of continuous wave radar through-wall detection system, comprise radar head device and multiple display, it is characterized in that, described radar head device arranges millimeter wave transceiving module, emitting antenna and receiving antenna, described millimeter wave transceiving module is launched millimeter-wave signal and is gone out by transmission antennas transmit, receiving antenna receiving target echoed signal, enter millimeter wave transceiving module and obtain Beat Signal, described Beat Signal is by after signal processing module process, obtain the distance of target relative to radar, described millimeter wave transceiving module comprises radiating portion and receiving unit, described radiating portion comprises the Sweep Source connected successively, coupling mechanism and power amplifier, described Sweep Source exports the swept-frequency signal of millimeter wave, gone out by transmission antennas transmit after coupling mechanism and power amplifier, described receiving unit comprises the low noise amplifier connected successively, image-reject mixer, rejection filter, intermediate frequency matched filter and manual gain control circuit, the target echo signal that radar receiving antenna receives by described low noise amplifier carries out low noise amplification, signal after low noise amplification is down-converted to intermediate-freuqncy signal by described image-reject mixer, described rejection filter suppresses to launch leakage signal and closely strong land clutter signal at Mid Frequency, described manual gain control circuit comprises numerical-control attenuator and single-chip microcomputer, described display passes through image and the data of wireless transport module receiving radar head unit.
As the further scheme of the present invention: described rejection filter is three rank rejection filters.
As the present invention's further scheme: described intermediate frequency matched filter is for leaching the useful signal of radar, and it comprises intermediate frequency LC bandpass filter, and bandwidth is the signal bandwidth of radar horizon.
Compared with prior art, the invention has the beneficial effects as follows: the present invention has multiple display, facilitate user at the diverse location detection of a target, the frequency modulation band of millimeter wave frequency modulated continuous wave radar is wide, can High Range Resolution be realized, adopt the detection radar of millimeter wave Continuous Wave with frequency modulation system can meet the needs of through-wall detection high-resolution imaging and target identification; Manually gain control circuit regulates receiving gain, and radar is unlikely to occur saturated phenomenon in the in-plant target of detection.
Accompanying drawing explanation
Fig. 1 is the theory diagram of continuous wave radar through-wall detection system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of continuous wave radar through-wall detection system, comprise radar head device and multiple display, described radar head device arranges millimeter wave transceiving module, emitting antenna and receiving antenna, described millimeter wave transceiving module is launched millimeter-wave signal and is gone out by transmission antennas transmit, receiving antenna receiving target echoed signal, enter millimeter wave transceiving module and obtain Beat Signal, described Beat Signal is by after signal processing module process, obtain the distance of target relative to radar, described millimeter wave transceiving module comprises radiating portion and receiving unit, described radiating portion comprises the Sweep Source connected successively, coupling mechanism and power amplifier, described Sweep Source exports the swept-frequency signal of millimeter wave, gone out by transmission antennas transmit after coupling mechanism and power amplifier, described receiving unit comprises the low noise amplifier connected successively, image-reject mixer, rejection filter, intermediate frequency matched filter and manual gain control circuit, the target echo signal that radar receiving antenna receives by described low noise amplifier carries out low noise amplification, signal after low noise amplification is down-converted to intermediate-freuqncy signal by described image-reject mixer, described rejection filter suppresses to launch leakage signal and closely strong land clutter signal at Mid Frequency, described rejection filter is three rank rejection filters, described intermediate frequency matched filter is for leaching the useful signal of radar, it comprises intermediate frequency LC bandpass filter, bandwidth is the signal bandwidth of radar horizon, described manual gain control circuit is for regulating receiver gain, make receiver unsaturated, described manual gain control circuit comprises numerical-control attenuator and single-chip microcomputer, described display passes through image and the data of wireless transport module receiving radar head unit, the present invention has multiple display, facilitate user at the diverse location detection of a target.
Because millimetre-wave radar orientation accuracy is high, radar cross section is large, antijamming capability is strong, the ability of metal target and surrounding environment of distinguishing is strong, these are all that through-wall detection provides good technical foundation, the frequency modulation band of millimeter wave frequency modulated continuous wave radar is wide, can High Range Resolution be realized, adopt the detection radar of millimeter wave Continuous Wave with frequency modulation system can meet the needs of through-wall detection high-resolution imaging and target identification.Manual gain control circuit of the present invention is in radar work, according to substance environment situation practically, when radar site erection point blocks relatively more serious around, the echoed signal that radar receives is stronger, regulate receiver gain by manual gain control circuit, make receiving trap be unlikely to saturated.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a continuous wave radar through-wall detection system, comprise radar head device and multiple display, it is characterized in that, described radar head device arranges millimeter wave transceiving module, emitting antenna and receiving antenna, described millimeter wave transceiving module is launched millimeter-wave signal and is gone out by transmission antennas transmit, receiving antenna receiving target echoed signal, enter millimeter wave transceiving module and obtain Beat Signal, described Beat Signal is by after signal processing module process, obtain the distance of target relative to radar, described millimeter wave transceiving module comprises radiating portion and receiving unit, described radiating portion comprises the Sweep Source connected successively, coupling mechanism and power amplifier, described Sweep Source exports the swept-frequency signal of millimeter wave, gone out by transmission antennas transmit after coupling mechanism and power amplifier, described receiving unit comprises the low noise amplifier connected successively, image-reject mixer, rejection filter, intermediate frequency matched filter and manual gain control circuit, the target echo signal that radar receiving antenna receives by described low noise amplifier carries out low noise amplification, signal after low noise amplification is down-converted to intermediate-freuqncy signal by described image-reject mixer, described rejection filter suppresses to launch leakage signal and closely strong land clutter signal at Mid Frequency, described manual gain control circuit comprises numerical-control attenuator and single-chip microcomputer, described display leads to
cross image and the data of wireless transport module receiving radar head unit.
2. continuous wave radar through-wall detection system according to claim 1, is characterized in that, described rejection filter is three rank rejection filters.
3. continuous wave radar through-wall detection system according to claim 1, is characterized in that, described intermediate frequency matched filter is for leaching the useful signal of radar, and it comprises intermediate frequency LC bandpass filter, and bandwidth is the signal bandwidth of radar horizon.
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| CN201510407258.8A CN105093219A (en) | 2015-07-13 | 2015-07-13 | Continuous wave radar through-wall detection system |
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| CN201510407258.8A CN105093219A (en) | 2015-07-13 | 2015-07-13 | Continuous wave radar through-wall detection system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487073A (en) * | 2015-12-11 | 2016-04-13 | 上海良相智能化工程有限公司 | Through-wall radar |
| CN106247960A (en) * | 2016-07-21 | 2016-12-21 | 上海理工大学 | Utilize the method for bar diameter in THz wave or millimeter wave detection body of wall |
| CN106646461A (en) * | 2017-03-14 | 2017-05-10 | 山东省科学院自动化研究所 | Through-the-wall radar filter design method, filter, and target detection system and method |
| CN107045148A (en) * | 2017-05-26 | 2017-08-15 | 无锡华测电子系统有限公司 | A kind of GPR |
| CN107991672A (en) * | 2016-10-26 | 2018-05-04 | 上海雪狸传感技术有限公司 | A kind of shallow surface penetrating radar imaging system |
| CN109001717A (en) * | 2018-06-25 | 2018-12-14 | 安徽尼古拉电子科技有限公司 | The continuous wave radar detection device of navigation under a kind of adverse circumstances |
| CN109188553A (en) * | 2018-11-08 | 2019-01-11 | 常州工学院 | The detection device and method of electric wire are buried in a kind of contactless wall |
| CN109478900A (en) * | 2016-04-04 | 2019-03-15 | 尼克根合伙Ip有限责任公司 | The regeneration and forwarding of millimeter wave for building penetration |
| CN109856630A (en) * | 2019-02-15 | 2019-06-07 | 济南爱我本克网络科技有限公司 | A kind of portable partition scan fluoroscopic apparatus |
| CN110174669A (en) * | 2019-05-17 | 2019-08-27 | 常州第四无线电厂有限公司 | A kind of hand-held wall-through radar device |
| CN111025305A (en) * | 2019-12-27 | 2020-04-17 | 湖南华诺星空电子技术有限公司 | Radar and vibration combined distributed partition wall detection system |
| CN111243237A (en) * | 2020-01-16 | 2020-06-05 | 珠海格力电器股份有限公司 | Drowning monitoring method, equipment, device and storage medium |
| CN111257880A (en) * | 2018-11-30 | 2020-06-09 | 深圳市海思半导体有限公司 | Radar and target detection method |
| US10887013B2 (en) | 2014-04-04 | 2021-01-05 | Nxgen Partners Ip, Llc | System and method for communication using orbital angular momentum with multiple layer overlay modulation |
| US11245486B2 (en) | 2014-10-13 | 2022-02-08 | Nxgen Partners Ip, Llc | Application of orbital angular momentum to Fiber, FSO and RF |
| CN115174324A (en) * | 2022-05-25 | 2022-10-11 | 苏州豪米波技术有限公司 | Wireless communication method of millimeter wave radar without aid of external equipment |
| US11956035B2 (en) | 2014-10-13 | 2024-04-09 | Nxgen Partners Ip, Llc | System and method for combining MIMO and mode-division multiplexing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10887013B2 (en) | 2014-04-04 | 2021-01-05 | Nxgen Partners Ip, Llc | System and method for communication using orbital angular momentum with multiple layer overlay modulation |
| US11956035B2 (en) | 2014-10-13 | 2024-04-09 | Nxgen Partners Ip, Llc | System and method for combining MIMO and mode-division multiplexing |
| US11245486B2 (en) | 2014-10-13 | 2022-02-08 | Nxgen Partners Ip, Llc | Application of orbital angular momentum to Fiber, FSO and RF |
| CN105487073A (en) * | 2015-12-11 | 2016-04-13 | 上海良相智能化工程有限公司 | Through-wall radar |
| CN109478900A (en) * | 2016-04-04 | 2019-03-15 | 尼克根合伙Ip有限责任公司 | The regeneration and forwarding of millimeter wave for building penetration |
| CN106247960A (en) * | 2016-07-21 | 2016-12-21 | 上海理工大学 | Utilize the method for bar diameter in THz wave or millimeter wave detection body of wall |
| CN107991672A (en) * | 2016-10-26 | 2018-05-04 | 上海雪狸传感技术有限公司 | A kind of shallow surface penetrating radar imaging system |
| CN106646461A (en) * | 2017-03-14 | 2017-05-10 | 山东省科学院自动化研究所 | Through-the-wall radar filter design method, filter, and target detection system and method |
| CN107045148A (en) * | 2017-05-26 | 2017-08-15 | 无锡华测电子系统有限公司 | A kind of GPR |
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| CN109001717A (en) * | 2018-06-25 | 2018-12-14 | 安徽尼古拉电子科技有限公司 | The continuous wave radar detection device of navigation under a kind of adverse circumstances |
| CN109188553A (en) * | 2018-11-08 | 2019-01-11 | 常州工学院 | The detection device and method of electric wire are buried in a kind of contactless wall |
| CN111257880A (en) * | 2018-11-30 | 2020-06-09 | 深圳市海思半导体有限公司 | Radar and target detection method |
| CN109856630A (en) * | 2019-02-15 | 2019-06-07 | 济南爱我本克网络科技有限公司 | A kind of portable partition scan fluoroscopic apparatus |
| CN110174669A (en) * | 2019-05-17 | 2019-08-27 | 常州第四无线电厂有限公司 | A kind of hand-held wall-through radar device |
| CN110174669B (en) * | 2019-05-17 | 2024-02-27 | 常州第四无线电厂有限公司 | Handheld through-wall radar device |
| CN111025305A (en) * | 2019-12-27 | 2020-04-17 | 湖南华诺星空电子技术有限公司 | Radar and vibration combined distributed partition wall detection system |
| CN111025305B (en) * | 2019-12-27 | 2021-10-08 | 湖南华诺星空电子技术有限公司 | Radar and vibration combined distributed partition wall detection system |
| CN111243237A (en) * | 2020-01-16 | 2020-06-05 | 珠海格力电器股份有限公司 | Drowning monitoring method, equipment, device and storage medium |
| CN115174324A (en) * | 2022-05-25 | 2022-10-11 | 苏州豪米波技术有限公司 | Wireless communication method of millimeter wave radar without aid of external equipment |
| CN115174324B (en) * | 2022-05-25 | 2023-08-22 | 苏州豪米波技术有限公司 | Wireless communication method of millimeter wave radar without external equipment |
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