CN109541699A - Safety check instrument system, millimeter wave transceiving module and its millimeter-wave signal generate component - Google Patents

Safety check instrument system, millimeter wave transceiving module and its millimeter-wave signal generate component Download PDF

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Publication number
CN109541699A
CN109541699A CN201811253338.2A CN201811253338A CN109541699A CN 109541699 A CN109541699 A CN 109541699A CN 201811253338 A CN201811253338 A CN 201811253338A CN 109541699 A CN109541699 A CN 109541699A
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China
Prior art keywords
voltage controlled
oscillation device
controlled oscillation
device assembly
millimeter
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Pending
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CN201811253338.2A
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Chinese (zh)
Inventor
王荣
祁春超
俞小平
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Shenzhen Zhongtou Huaxun Terahertz Technology Co ltd
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Shenzhen Huaxun Ark Terahertz Technology Co Ltd
Shenzhen Huaxun Ark Technology Co Ltd
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Application filed by Shenzhen Huaxun Ark Terahertz Technology Co Ltd, Shenzhen Huaxun Ark Technology Co Ltd filed Critical Shenzhen Huaxun Ark Terahertz Technology Co Ltd
Priority to CN201811253338.2A priority Critical patent/CN109541699A/en
Publication of CN109541699A publication Critical patent/CN109541699A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/89Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/021Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signals

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

This application discloses a kind of safety check instrument system, millimeter wave transceiving module and its millimeter waves to generate component, which generates the gate that component includes at least two voltage controlled oscillation device assemblies and connect at least two voltage controlled oscillation device assemblies;Wherein, voltage controlled oscillation device assembly includes voltage controlled oscillator and the phaselocked loop that connect with the voltage controlled oscillation device assembly, it is used to receive control signal and generates the first transmitting signal, the working frequency period of voltage controlled oscillation device assembly is the period 1, gate controls at least two voltage controlled oscillation device assemblies and successively carries out work switching in the period 1, so that at least two voltage controlled oscillation device assembly is sequentially generated the first transmitting signal in the period 1.Through the above way, the application controls at least two voltage controlled oscillation device assemblies by gate and successively works within a working frequency period, it is sequentially generated the first transmitting signal, to accelerate the rate of the first transmitting signal generation, further speeds up the scanning speed of safety check instrument system.

Description

Safety check instrument system, millimeter wave transceiving module and its millimeter-wave signal generate component
Technical field
This application involves safety check instrument technical field, more particularly to a kind of safety check instrument system, millimeter wave transceiving module and its Millimeter-wave signal generates component.
Background technique
In recent years, safety problem increasingly obtains the concern of the people of the world, also mentions to the reliability and intelligence of safe examination system Higher requirement is gone out.
Traditional metal detector can only detect short distance small range target, and low efficiency has been far from satisfying The demand of safety check.Although the various rays such as X-ray have very strong penetration power, radiation injury can be caused to tested human body, even if There is currently the X-ray machines of low radiation dose, but it is still not easy to be accepted by the public.Infrared ray be by body surface temperature at Picture, can not blur-free imaging in the case where there is fabric to block.And millimeter wave imaging system not only can detecte out and be hidden in fabric Under metal object, can also detect that plastics pistol, the dangerous material such as explosive, the information of acquisition is more detailed, accurate, Ke Yi great The earth reduces false alarm rate.Therefore, mm-wave imaging technology has obtained more being widely applied in terms of personnel in recent years.
Mm-wave imaging technology will use millimetre-wave radar.Millimetre-wave radar refers to radar emission signal frequency in millimeter Wave frequency section, the frequency of millimeter wave are 30GHz to 300GHz (wavelength is from 1mm to 10mm), in practical engineering applications, often milli The low end frequency of metric wave drops to 26GHz.In electromagnetic spectrum, the position of millimeter-wave frequency between microwave and it is infrared between.With it is micro- Wave is compared, and the typical feature of millimeter wave is that wavelength is short, bandwidth (utilizing space with very wide) and biography in an atmosphere Broadcast characteristic.Compared with infrared, millimeter wave has the ability of all weather operations and can be used for flue dust, under the adverse circumstances such as cloud and mist. In the case where microwave frequency band is more and more crowded, the advantages of millimeter wave takes into account microwave, and be also equipped with low-frequency range microwave and do not have Standby some advantages.
In the prior art, in the prior art, generally using VCO (voltage controlled oscillator) and DDS (Direct Digital voltage controlled oscillation Device assembly) for receiving control signal to generating millimeter-wave signal, although VCO frequency modulation is very fast, but its stability compared with It is low, it generally requires through phaselocked loop come to improving stability, but plus after phaselocked loop, the signal frequency that VCO is exported is just It is lower, it is unable to satisfy the requirement that millimeter-wave signal generates rate, to influence the scanning speed of its entire safety check instrument.
Summary of the invention
The application provides a kind of safety check instrument system, millimeter wave transceiving module and its millimeter-wave signal and generates component.It can solve Certainly to lead to the problem of rate slower for the millimeter wave as caused by frequency limit in the prior art.
The technical solution that the application uses is: providing a kind of millimeter-wave signal generation component, the generation component packet It includes: at least two voltage controlled oscillation device assemblies and the gate being connect at least two voltage controlled oscillation device assembly;Wherein, described Voltage controlled oscillation device assembly is for receiving control signal and generating the first transmitting signal, the working frequency of the voltage controlled oscillation device assembly Period is the period 1, wherein the gate control at least two voltage controlled oscillation device assembly the period 1 according to It is secondary to carry out work switching, so that at least two voltage controlled oscillation device assembly is sequentially generated described first in the period 1 Emit signal.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of millimeter-wave signal production The production method of raw component, the millimeter-wave signal generate component include at least two voltage controlled oscillation device assemblies and with it is described at least The connected gate of two voltage controlled oscillation device assemblies, the voltage controlled oscillation device assembly include voltage controlled oscillator and with the voltage-controlled vibration The phaselocked loop for swinging device assembly connection is used to receive control signal and generates the first transmitting signal, the voltage controlled oscillation device assembly The working frequency period be the period 1;The production method includes: voltage-controlled using gate control described at least two Oscillator assembly successively carries out work switching in period first time, so that at least two voltage controlled oscillation device assembly exists The period 1 is sequentially generated the first transmitting signal.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of millimeter wave transceiving mould Block, the transceiver module include that millimeter-wave signal described in any of the above embodiments generates component, the transceiver module further include: transmitting Link generates component with the millimeter-wave signal and connect, and receives the first transmitting signal and is formed for described tested pair As the second transmitting signal reflected;Receives link is reflected for receiving the second transmitting signal by measurand After be formed by first echo signal, and the first echo signal is handled to form second echo signal;Process chain Road receives the second echo signal and the first transmitting signal and is handled to obtain original data.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of safety check instrument system, institute Stating safety check instrument system includes millimeter wave transceiving module described in any of the above embodiments.
The beneficial effect of the application is: being different from the prior art, application is by providing at least two voltage controlled oscillation device assemblies With gate, and by gate control at least two voltage controlled oscillation device assemblies successively carry out work within a working frequency period Make, be sequentially generated the first transmitting signal, to accelerate the rate of the first transmitting signal generation, further speeds up safety check instrument system Scanning speed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that millimeter wave provided by the present application generates component;
Fig. 2 is the working timing figure of the first voltage controlled oscillation device assembly shown in Fig. 1;
Fig. 3 is the working timing figure of at least two voltage controlled oscillation device assemblies shown in Fig. 1;
Fig. 4 is the first pass schematic diagram for the production method that millimeter wave provided by the present application generates component;
Fig. 5 is the structural schematic diagram of a kind of millimeter wave transceiving module provided by the present application and an application scenarios.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.It is based on Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall in the protection scope of this application.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present application Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution Conjunction is not present, also not the present invention claims protection scope within.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram that millimeter-wave signal provided by the present application generates component 100, the millimeter wave Generating component 100 includes at least two voltage controlled oscillation device assemblies 110 and gate 120.Gate 120 and at least two voltage-controlled Oscillator assembly 110 is connected.
Wherein, voltage controlled oscillation device assembly 110 include voltage controlled oscillator (voltage-controlled oscillator, VCO) 114 and phaselocked loop connected to it ((Phase Locked Loop, PLL) 115, voltage controlled oscillator frequency modulation itself is very fast, But its stability is lower, it is therefore desirable to increase phaselocked loop to keep the stability of voltage controlled oscillator, but corresponding its is adjusted Frequency can be slack-off.In this application, voltage controlled oscillation device assembly 110 is the composite module of voltage controlled oscillator 114 and phaselocked loop 115.Its It is specifically as follows two, three or multiple, here with no restrictions, in the present embodiment, for three, the respectively first pressure Control oscillator assembly 111, the second voltage controlled oscillation device assembly 112 and third voltage controlled oscillation device assembly 113.
The working frequency of three of them voltage controlled oscillation device assembly is equal, by taking the first voltage controlled oscillation device assembly 111 as an example, the The working frequency of one voltage controlled oscillation device assembly 111 is default hertz, and the working frequency period is period 1, i.e., the first voltage-controlled vibration Swinging the practical frequency for generating the first transmitting signal of device assembly 111 is default hertz, and within a period 1, work is once simultaneously The first transmitting signal is generated, the period 1 is preceding primary start-up operation to the time once started to work afterwards.Specifically include work Make time and interval time, interval time is that preceding one action terminates the time difference started to rear one action.
Such as Fig. 2, one action is completed every an interval time, that is, receive control signal and produces the first transmitting letter Number, due to the presence of interval time, so that the first voltage controlled oscillation device assembly 111 is can not to generate millimeter within this period Wave signal.
Gate 120 is used to control at least two voltage controlled oscillation device assemblies 110 and successively be worked within the period 1 Switching so that at least two voltage controlled oscillation device assemblies 110 are sequentially generated the first transmitting signal within the period 1.At this In embodiment, that is, control the first voltage controlled oscillation device assembly 111, the second voltage controlled oscillation device assembly 112 and the voltage-controlled vibration of third Device assembly 113 is swung successively to work.
In a particular embodiment, millimeter-wave signal generates component 100 and presses including the first voltage controlled oscillation device assembly 111, second Oscillator assembly 112 and third voltage controlled oscillation device assembly 113 are controlled, gate 120 includes controller 121 and gating switch 122, wherein gating switch 122 is specifically as follows single pole multiple throw etc. or other gating switches, multiple output end difference The first voltage controlled oscillation device assembly 111, the second voltage controlled oscillation device assembly 112 and third voltage controlled oscillation device assembly 113 are connected, is controlled Device 121 processed is specifically as follows programming device, such as FPGA (field programmable gate array), controller 121 can bases Preset timing control gating switch 122, so that gating switch 122 makes the first voltage controlled oscillator group by switching gate Part 111, the second voltage controlled oscillation device assembly 112 and third voltage controlled oscillation device assembly 113 carry out work successively in the period 1 Switching.
As shown in Figure 3, it is assumed that the working frequency of voltage controlled oscillator component 110 is default hertz, such as the first work week Phase is 3T, can be divided into first time, the second time, third time.Its such as its controller 121 is according to default timing, control The carry out gating switch of gating switch 122 processed, so that the first voltage controlled oscillation device assembly 111 specifically can carry out work in first time Make, i.e. progress millimeter wave generation, in the time interval of the second time to third time is generated without millimeter wave.The Two voltage controlled oscillation device assemblies 112 can work in the second time, the second voltage controlled oscillation device assembly 113 can third into Row work.
Similarly, for next cycle, the 4th time, the 5th time, the 6th time can be divided into, it is right respectively The first voltage controlled oscillation device assembly 111, the second voltage controlled oscillation device assembly 112 and third voltage controlled oscillation device assembly 113 is answered to carry out work Make.
I.e. in one cycle, the first voltage controlled oscillation device assembly 111, the second voltage controlled oscillation device assembly 112 and third Voltage controlled oscillation device assembly 113 successively works in first time, the second time, third time respectively, is sequentially completed the first hair The generation of signal is penetrated, to complete work switching.
In a particular embodiment, control signal is also possible to according to timing progress on-off is preset, i.e., in the first voltage-controlled vibration When swinging the work of device assembly 111, then to 111 input control signal of the first voltage controlled oscillation device assembly, in the second voltage controlled oscillation device assembly When 112 work, then to 112 input control signal of the second voltage controlled oscillation device assembly etc..
In other embodiments, control signal input can also be carried out always, and by presetting multiple voltage controlled oscillator groups The working sequence of part, i.e., so that the attack time point of the first voltage controlled oscillation device assembly 111 is the second voltage-controlled vibration at the first time The attack time point for swinging device assembly 112 was the second time, and third voltage controlled oscillation device assembly 113 attack time point is the Three times.
In a particular embodiment, can also be when the second voltage controlled oscillation device assembly 112 be worked, the first voltage controlled oscillation It is to close that device assembly 111, which is closed with third voltage controlled oscillation device assembly 113, so as to save the cost of its operation.
As shown in figure 4, Fig. 4 is the first implementation of the production method that a kind of millimeter-wave signal provided by the present application generates component The flow diagram of example, specifically comprises the following steps:
S11 is controlled at least two voltage controlled oscillation device assembly period 1 using gate and is successively carried out work switching, with So that at least two voltage controlled oscillation device assemblies are sequentially generated the first transmitting signal within the period 1.
It includes at least two voltage controlled oscillation device assemblies 110 and gate 120 that the millimeter wave, which generates component 100,.Gate 120 are connected at least two voltage controlled oscillation device assemblies 110.
At least two voltage controlled oscillation device assemblies 110 be can use to receive control signal, and simultaneously synthesizing first transmitting letter Number.The working frequency period of single voltage controlled oscillation device assembly is the period 1;
At least two voltage controlled oscillation device assemblies 110 are controlled by gate 120 successively to carry out working within the period 1 cutting It changes.So that at least two voltage controlled oscillation device assemblies 110 are sequentially generated the first transmitting signal within the period 1.Wherein gate Device 120 includes controller 121 and gating switch 122, and controller 121 controls gating switch 122 according to preset timing, from And it controls the work that its at least two voltage controlled oscillation device assembly 110 carries out successively and switches.It implements step above-described embodiment In have been described, which is not described herein again.
In above-described embodiment, by providing at least two voltage controlled oscillation device assemblies, and by setting gate according to default Timing successively work within a duty cycle to control at least two voltage controlled oscillation device assemblies, to be sequentially generated the One transmitting signal, to accelerate the generation rate that entire millimeter wave generates the first transmitting signal of component.
Such as Fig. 5, the application also provides a kind of millimeter wave transceiving module 10 comprising millimeter wave described above generates component 100, it can also include further transmitting link 200, receives link 300 and processing link 400 and frequency multiplier 500, be somebody's turn to do 500 output end of frequency multiplier connects the control signal input that millimeter-wave signal generates component 100.
As shown in figure 5, wherein transmitting link 200 is connect with millimeter wave generation component 100, for receiving the first transmitting letter Number, and the first transmitting signal is handled, to be formed in the second transmitting signal, then concrete application scene, the second transmitting letter Measurand number can be transmitted to by transmitting antenna array, transmitting link 200 specifically includes power splitter 210, power amplification Device 220 and filter 230, wherein power splitter 210 includes an input terminal and two output ends, and input terminal connects millimeter wave The input terminal of component 100, the specifically signal output end of at least two voltage controlled oscillation device assemblies 110 are generated, for receiving first Emit signal, and is divided into two paths of signals and is exported, the first output of the input terminal connection power splitter 210 of power amplifier 220 End is used to the first transmitting signal carrying out power amplification, and the input terminal of filter 230, filter 230 connects power amplification The output end of device 220, so that the first transmitting signal after further amplifying is filtered, so that it is higher to form signal-to-noise ratio Second transmitting signal.
In a concrete application scene, the second transmitting signal that millimeter wave transceiving module 10 generates can pass through array antenna Emitted, to be emitted in measurand, and generates first echo signal, wherein first echo signal is carried about quilt Survey the data information of object.
Receives link 300 receives first echo signal, can specifically be received by connecting receiving antenna array, and First echo signal is handled, to form second echo signal.It can specifically include low-noise amplifier 310, use In the signal-to-noise ratio for promoting first echo signal.
Processing link 400 emits signal with first for receiving second echo signal, and by second echo signal and first Emit signal and carry out preliminary treatment, to obtain initial image data.Its handle link 400 specifically include arithmetic unit 410 with Low-pass filter 420, arithmetic unit 410 can be multiplier or divider, arithmetic unit include two input terminals, first Input terminal connects the second output terminal of power splitter 210, and for receiving the to emit signal, the second input terminal connects low noise The output end of amplifier 310, for receiving second echo signal, arithmetic unit 410 emits signal and second for receive first Echo-signal carries out calculation process, to obtain initial treatment signal, low-pass filter 420 connects the output of arithmetic unit 410 End, the initial treatment signal further received is filtered, to obtain original data.
In a particular embodiment, can by original data input picture generation unit to be further processed, To complete the imaging of checked object.
In above-described embodiment, by providing transmitting link, receives link and processing link, by emitting link pair millimeter Wave generates the first transmitting signal caused by component and is handled and generate the second transmitting for being emitted to measurand Signal, and the first echo signal that the second transmitting signal is reflected by measurand is carried out by processing by receives link and forms second Echo-signal, and preliminary treatment is carried out according to the first transmitting signal and second echo signal by processing link, to obtain just Beginning image data.
The application also provides a kind of safety check instrument system, which includes in above-described embodiment described in any embodiment Millimeter wave transceiving module 10.
In conclusion the application includes at least two millimeter wave scanning means by providing safety check instrument system, and corresponding The default scanning area of its safety check instrument system is divided into and carries out one-to-one at least two at least two millimeter wave scanning means A scanning area, and by setting frequency or the method for working sequence, so that in the same preset time period, at least two Millimeter wave scanning means can mutually independent work, and be not in signal interference, and after obtaining scan data, pass through figure As generation unit is handled, to generate the image of checked object, the time of its scanning is substantially reduced, scanning is improved Efficiency.
The above is only presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize the application Equivalent result made by specification and accompanying drawing content or equivalent process transformation are applied directly or indirectly in other relevant technologies Field similarly includes in the scope of patent protection of the application.

Claims (10)

1. a kind of millimeter-wave signal generates component, which is characterized in that the generation component includes: at least two voltage controlled oscillator groups Part and the gate being connect at least two voltage controlled oscillation device assembly;
Wherein, the voltage controlled oscillation device assembly includes voltage controlled oscillator and the phaselocked loop that connect with the voltage controlled oscillation device assembly, The voltage controlled oscillation device assembly is for receiving control signal and generating the first transmitting signal, the work of the voltage controlled oscillation device assembly Frequency cycle is the period 1,
Wherein, the gate controls at least two voltage controlled oscillation device assembly and successively carries out working cutting in the period 1 It changes, so that at least two voltage controlled oscillation device assembly is sequentially generated the first transmitting signal in the period 1.
2. millimeter-wave signal according to claim 1 generates component, which is characterized in that the gate include controller with Gating switch,
The gating switch connects at least two voltage controlled oscillation device assembly, and the controller is according to default timing control Gating switch carries out work switching to controlling at least two voltage controlled oscillation device assembly.
3. the production method that a kind of millimeter-wave signal generates component, which is characterized in that the millimeter-wave signal generates component and includes At least two voltage controlled oscillation device assemblies and the gate being connected at least two voltage controlled oscillation device assembly, the voltage controlled oscillation For device assembly for receiving control signal and generating the first transmitting signal, working frequency period of the voltage controlled oscillation device assembly is the One period;
The production method includes:
At least two voltage controlled oscillation device assembly is controlled using the gate successively to work in period first time Switching, so that at least two voltage controlled oscillation device assembly is sequentially generated the first transmitting signal in the period 1.
4. production method according to claim 3, which is characterized in that the gate includes controller and gating switch,
At least two voltage controlled oscillators group is controlled according to gating switch described in default timing control using the controller Part carries out work switching.
5. a kind of millimeter wave transceiving module, which is characterized in that the transceiver module includes that any one of claim 1-4 right is wanted The millimeter-wave signal is asked to generate component, the transceiver module further include:
Emit link, generate component with the millimeter-wave signal and connect, receive the first transmitting signal and is formed for institute State the second transmitting signal that measurand is reflected;
Receives link is formed by the first echo letter for receiving after the second transmitting signal is reflected by measurand Number, and the first echo signal is handled to form second echo signal;
Link is handled, the second echo signal and the first transmitting signal are received and is handled to obtain initial pictures number According to.
6. transceiver module according to claim 5, which is characterized in that the transmitting link includes:
Power splitter, the input terminal of the power splitter connect the output end of at least two voltage controlled oscillation device assembly;
Power amplifier, the input terminal of the power amplifier connect the first output end of the power splitter;
Filter, the input terminal of the filter connect the output end of the power amplifier.
7. transceiver module according to claim 6, which is characterized in that the receives link includes low-noise amplifier.
8. transceiver module according to claim 7, which is characterized in that the processing link includes:
Arithmetic unit, the first input end of the arithmetic unit connect the second output terminal of the power splitter, and the second of the arithmetic unit Input terminal connects the output end of the low-noise amplifier;
Low-pass filter connects the output end of the arithmetic unit.
9. transceiver module according to claim 5, which is characterized in that the transceiver module further comprises frequency multiplier, institute The output end for stating frequency multiplier connects the control signal input that the millimeter-wave signal generates component.
10. a kind of safety check instrument system, which is characterized in that the safety check instrument system includes described in any one of claim 6-9 Millimeter wave transceiving module.
CN201811253338.2A 2018-10-25 2018-10-25 Safety check instrument system, millimeter wave transceiving module and its millimeter-wave signal generate component Pending CN109541699A (en)

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Application Number Priority Date Filing Date Title
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CN201811253338.2A CN109541699A (en) 2018-10-25 2018-10-25 Safety check instrument system, millimeter wave transceiving module and its millimeter-wave signal generate component

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111355488A (en) * 2020-03-18 2020-06-30 浙江大学 Uninterrupted frequency modulation continuous wave signal generator

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CN106093937A (en) * 2016-05-18 2016-11-09 中国电子科技集团公司第四十研究所 A kind of microwave and millimeter wave human body security check system and safety inspection method
CN106646460A (en) * 2017-03-10 2017-05-10 四川莱源科技有限公司 Radar non-contact security inspection equipment

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Publication number Priority date Publication date Assignee Title
CN104378110A (en) * 2013-08-15 2015-02-25 同方威视技术股份有限公司 Frequency sweeping signal generating circuit
CN205450266U (en) * 2015-12-25 2016-08-10 深圳市太赫兹科技创新研究院 Human security installations of many people based on linear FM
CN106093937A (en) * 2016-05-18 2016-11-09 中国电子科技集团公司第四十研究所 A kind of microwave and millimeter wave human body security check system and safety inspection method
CN106646460A (en) * 2017-03-10 2017-05-10 四川莱源科技有限公司 Radar non-contact security inspection equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111355488A (en) * 2020-03-18 2020-06-30 浙江大学 Uninterrupted frequency modulation continuous wave signal generator

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