CN106249213A - A kind of indoor barrier reflection removal system for radar experiment porch - Google Patents

A kind of indoor barrier reflection removal system for radar experiment porch Download PDF

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Publication number
CN106249213A
CN106249213A CN201610886024.0A CN201610886024A CN106249213A CN 106249213 A CN106249213 A CN 106249213A CN 201610886024 A CN201610886024 A CN 201610886024A CN 106249213 A CN106249213 A CN 106249213A
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CN
China
Prior art keywords
radar
experiment porch
removal system
indoor barrier
microwave absorption
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201610886024.0A
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Chinese (zh)
Inventor
韩雁飞
张飞宇
卢晓光
李海
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Civil Aviation University of China
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Civil Aviation University of China
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Publication date
Application filed by Civil Aviation University of China filed Critical Civil Aviation University of China
Priority to CN201610886024.0A priority Critical patent/CN106249213A/en
Publication of CN106249213A publication Critical patent/CN106249213A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G01S7/36Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
    • 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
    • G01S7/40Means for monitoring or calibrating
    • G01S7/4004Means for monitoring or calibrating of parts of a radar system

Abstract

A kind of indoor barrier reflection removal system for radar experiment porch.It includes microwave absorption room and absorbing material;Microwave absorption room is the cuboid body structure that lower end is opening-like, covers on the outside of target positioning table in radar experiment porch, face, front-end and back-end is respectively equipped with two doors that can outwards open;Either side bottom is provided with number hole according to observations, observes the target to be measured position on target positioning table for experimenter from microwave absorption outdoor;Absorbing material is attached on the inner surface of microwave absorption room, the noise signal produced for absorption experiment indoor barrier.Effect of the present invention: affect the Radar Targets'Detection ramification problem in experimental teaching for indoor barrier, use for reference the design philosophy in small microwave darkroom, devises a set of indoor barrier reflection removal system.Present system can suppress carrying out of the noise jamming of indoor barrier, beneficially student experimenting project effectively, and simple in construction, low cost, use are easy to operate.

Description

A kind of indoor barrier reflection removal system for radar experiment porch
Technical field
The invention belongs to microwave dark room technical field, particularly relate to a kind of indoor barrier for radar experiment porch Reflection removal system.
Background technology
At present, civil aviation control specifies that spendable air traffic control radar monitors that equipment is divided into surveillance radar, a secondary to monitor thunder Reaching and attach together radar etc. with one or two times, its main task is hunter and vector aircraft carries out safe flight, monitors around aircraft Meteorological change, and weather information is sent into the automatization terminal of air traffic control.Such monitors that the use of equipment carries significantly The flight safety of high aircraft and spatial domain utilization rate.But owing to a real surveillance radar is expensive, and it runs Need civil aviation authority side to ratify, and there is bigger electromagnetic radiation, therefore a real surveillance radar should not be equipped in campus.
In order to carry out the experimental teaching within the class period of radar surveillance class course, certain the most conventional type radar experiment porch is one The active real time radar system that can use at laboratory safety, mainly includes at least one radar antenna and target positioning table, Wherein target positioning table is provided with slide rail, and goal setting to be measured is on slide rail;Radar antenna is for objective emission electromagnetism to be measured Involve the electromagnetic wave receiving to be returned by target reflection to be measured, thus determine the position of target to be measured.This radar experiment porch Transmitting power is relatively low, is thus suitable for school and monitors the experimental teaching of class course.But owing to being limited by experimental site and room The impact of interior barrier, causes this radar experiment porch can produce various noise jamming when carrying out experimental implementation, thus affects Object detection results in experimental teaching.
Microwave dark room is a round-the-clock laboratory, and it can make the interference effect of experiment neither climate condition, moreover it is possible to Realize the measurement of automatization, therefore microwave dark room is at present at various fields quilts such as communication, radar, microwave technology, guided missile, Aero-Space Extensively application.If the design philosophy in small microwave darkroom can be used for reference, according to the running parameter of above-mentioned radar experiment porch, select to close Suitable absorbing material, sets up an indoor barrier reflection removal system, to solve the radar that environmental factors in laboratory causes Clutter problem, and injure to reduce electromagnetic radiation by absorbing the electromagnetic wave that scatters to other directions of target, undoubtedly can be for learning Raw provide more excellent and safe experiment test environment.But still lack such system at present.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of indoor barrier for radar experiment porch Reflection removal system.
In order to achieve the above object, the indoor barrier reflection removal system for radar experiment porch that the present invention provides Including microwave absorption room and absorbing material;Wherein microwave absorption room is the cuboid body structure that lower end is opening-like, covers on The outside of the target positioning table in radar experiment porch, face, front-end and back-end is respectively equipped with two doors that can outwards open; Either side bottom is provided with number hole according to observations, observes target to be measured in target for experimenter from microwave absorption outdoor Position on positioning table;Absorbing material is attached on the inner surface of microwave absorption room, produces for absorption experiment indoor barrier Noise signal.
Described absorbing material is solid foam pyramid type absorbing material.
Described data observation port is horizontal stripe shape, is opened in 8cm center, distance microwave absorption chamber bottom surface, width × length For 8cm × 102cm.
The described indoor barrier reflection removal system for radar experiment porch also include two vertical fixed strips and Article two, on activity bar, and microwave absorption room, the middle part of either side is additionally provided with a signal amplitude loophole, on this side exterior surface The position being positioned at signal amplitude loophole both sides is respectively equipped with a vertical fixed strip, and the top and the bottom of two vertical fixed strips are formed respectively There is a square aperture;Article two, activity bar is respectively inserted in two corresponding openings on two vertical fixed strips, and being used for will First radar antenna is clamped in signal amplitude loophole middle part, and being additionally provided with one on this side inner surface can open or close simultaneously Close the sliding door of signal amplitude loophole.
Described signal amplitude loophole is square, a size of 10cm × 10cm.
Height × the width of described microwave absorption room × a length of 104cm × 122cm × 132cm.
The indoor barrier reflection removal system for radar experiment porch that the present invention provides has the advantage that and amasss Pole effect: the present invention is directed to indoor barrier affects the problem of the Radar Targets'Detection result in experimental teaching, uses for reference small-sized micro- The design philosophy in ripple darkroom, devises a set of indoor barrier reflection removal system.Present system can suppress indoor effectively Carrying out of the noise jamming of barrier, beneficially student experimenting project, and simple in construction, low cost, use are easy to operate.
Accompanying drawing explanation
The indoor barrier reflection removal system for radar experiment porch and radar that Fig. 1 provides for using the present invention are real Test platform and carry out structural representation during experimental teaching.
Microwave absorption room in the indoor barrier reflection removal system for radar experiment porch that Fig. 2 provides for the present invention Axonometric chart.
Vertical fixed strip in the indoor barrier reflection removal system for radar experiment porch that Fig. 3 provides for the present invention Structural representation.
Fig. 4 sets up radar antenna schematic diagram for utilizing above-mentioned vertical fixed strip and activity bar.
Fig. 5 (a) is that the PPI not using present system shows result.
Fig. 5 (b) shows result for using the PPI of present system.
Detailed description of the invention
The indoor barrier for radar experiment porch provided the present invention with specific embodiment below in conjunction with the accompanying drawings is anti- Penetrate elimination system to be described in detail.
As shown in Fig. 1 Fig. 4, the indoor barrier reflection removal system bag for radar experiment porch that the present invention provides Include microwave absorption room 1 and absorbing material 2;Wherein microwave absorption room 1 is the cuboid body structure that lower end is opening-like, covers on The outside of the target positioning table 6 in radar experiment porch, face, front-end and back-end is respectively equipped with two doors that can outwards open 3;Either side bottom is provided with number hole 4 according to observations, for experimenter from microwave absorption room 1 external observation target to be measured 5 Position on target positioning table 6;Absorbing material 2 is attached on the inner surface of microwave absorption room 1, for absorption experiment indoor barrier Hinder the noise signal that produce are raw.
Described absorbing material 2 is solid foam pyramid type absorbing material.
Described data observation port 4 is horizontal stripe shape, is opened in 8cm center, distance microwave absorption chamber 1 bottom surface, width × length Degree is 8cm × 102cm.
The described indoor barrier reflection removal system for radar experiment porch also includes two vertical fixed strip 8 Hes Article two, on activity bar 10, and microwave absorption room 1, the middle part of either side is additionally provided with a signal amplitude loophole 7, this side appearance The position being positioned at signal amplitude loophole 7 both sides on face is respectively equipped with a vertical fixed strip 8, the top and the bottom of two vertical fixed strips 8 It is respectively formed with a square aperture 9;Article two, activity bar 10 be respectively inserted on two vertical fixed strips 8 two are corresponding opens In mouth 9, for the first radar antenna 11 is clamped in signal amplitude loophole 7 middle part, it is additionally provided with on this side inner surface simultaneously One sliding door that can be turned on and off signal amplitude loophole 7.
Described signal amplitude loophole 7 is square, a size of 10cm × 10cm.
Height × the width of described microwave absorption room 1 × a length of 104cm × 122cm × 132cm.
The using method of the indoor barrier reflection removal system being used for radar the experiment porch now present invention provided is explained State as follows: when needing to utilize radar experiment porch to carry out the experimental teaching monitoring class course in the lab, first by this be Microwave absorption room 1 in system covers on the outside of the target positioning table 6 in radar experiment porch, before or after microwave absorption room 1 The second radar antenna 12 being positioned at side, microwave absorption room 1 is opened and be directed to one of them on end face 3, by target 5 to be measured It is fixed on the slide rail of target positioning table 6;If having only to utilize the second radar antenna 12 to launch electromagnetism to involve reception mesh to be measured The echo of mark 5 reflection, utilizes the sliding door on the side inner surface of microwave absorption room 1 to be closed by signal amplitude loophole 7.Then is utilized Two radar antennas 12 launch electromagnetic wave to target 5 to be measured, and the electromagnetic wave of other object scatter will in laboratory for target 5 to be measured Being absorbed by absorbing material 2, therefore the second radar antenna 12 can only receive the electromagnetism reflected by target 5 to be measured by door 3 Ripple, thus can be according to the accurate location determining target 5 to be measured reflex time.If needing utilization to be arranged on signal amplitude loophole The first radar antenna 11 on 7 launches electromagnetic wave, utilizes the second radar antenna 12 being positioned at side, microwave absorption room 1 to receive simultaneously The echo of target 5 to be measured reflection, utilizes above-mentioned sliding door to be opened by signal amplitude loophole 7, then utilizes and is arranged on signal amplitude loophole 7 On the first radar antenna 11 launch electromagnetic wave, target 5 to be measured electromagnetism of other object scatter in laboratory to target 5 to be measured Ripple will be absorbed by absorbing material 2, utilizes the second radar antenna 12 being positioned at side, microwave absorption room 1 to receive target 5 to be measured anti- The echo penetrated, thus can be according to determining the accurate location of target 5 to be measured reflex time, it is achieved thereby that effective spy of target Survey.
When Fig. 5 is experiment test, scope instruction (PPI) result of target echo to be measured.Wherein, Fig. 5 (a) is The PPI not using present system shows result.Fig. 5 (b) shows result for using the PPI of present system.
The operating frequency setting radar experiment porch is 1 μ s as 9.35GHz, pulse width, pulse recurrence frequency 216Hz, Maximum detectable range is 3.6m, and the rotating speed of the second radar antenna 12 is 9r/min, before target 5 to be measured is positioned at the second radar antenna 12 Side's distance between 180 °, and radar antenna 12 is 144cm.
From Fig. 5 (a), due to the restriction of experimental site, radar experiment porch is realizing the same of target 5 to be measured detection Time, echo also contains substantial amounts of barrier clutter, thus have impact on the Radar Targets'Detection result in experimental teaching.
Keep experiment condition constant, target positioning table 6 arranges the room for radar experiment porch that the present invention provides Test after interior barrier reflection removal system, shown in experimental result such as Fig. 5 (b).From Fig. 5 (b), compared to not using The measurement result of present system, only occurs in that the radar of target 5 to be measured at the 144cm in 180 ° of the second radar antenna 12 front Echo, clutter produced by other indoor barriers is the most suppressed, illustrate that present system can suppress indoor barrier effectively Noise jamming, beneficially the carrying out of student experimenting project.

Claims (6)

1. the indoor barrier reflection removal system for radar experiment porch, it is characterised in that: described for radar The indoor barrier reflection removal system of experiment porch includes microwave absorption room (1) and absorbing material (2);Wherein microwave absorption room (1) it is the opening-like cuboid body structure in lower end, covers on the outside of target positioning table (6) in radar experiment porch, Two doors that can outwards open (3) it are respectively equipped with on face, front-end and back-end;Either side bottom is provided with number hole according to observations (4), for experimenter from microwave absorption room (1) external observation target to be measured (5) position on target positioning table (6);Inhale Wave material (2) is attached on the inner surface of microwave absorption room (1), the noise signal produced for absorption experiment indoor barrier.
Indoor barrier reflection removal system for radar experiment porch the most according to claim 1, it is characterised in that: Described absorbing material (2) is solid foam pyramid type absorbing material.
Indoor barrier reflection removal system for radar experiment porch the most according to claim 1, it is characterised in that: Described data observation port (4) is horizontal stripe shape, is opened in 8cm center, distance microwave absorption chamber 1 bottom surface, width × a length of 8cm×102cm。
Indoor barrier reflection removal system for radar experiment porch the most according to claim 1, it is characterised in that: The described indoor barrier reflection removal system for radar experiment porch also includes two vertical fixed strips (8) and two work Move bar (10), and the middle part of microwave absorption room (1) upper either side is additionally provided with a signal amplitude loophole (7), this side appearance The position being positioned at signal amplitude loophole (7) both sides on face is respectively equipped with a vertical fixed strip (8), two vertical fixed strips (8) Top and the bottom are respectively formed with a square aperture (9);Article two, activity bar (10) is respectively inserted on two vertical fixed strips (8) In two corresponding openings (9), for the first radar antenna (11) being clamped in signal amplitude loophole (7) middle part, should simultaneously A sliding door that can be turned on and off signal amplitude loophole (7) it is additionally provided with on side inner surface.
Indoor barrier reflection removal system for radar experiment porch the most according to claim 4, it is characterised in that: Described signal amplitude loophole (7) is square, a size of 10cm × 10cm.
Indoor barrier reflection removal system for radar experiment porch the most according to claim 1, it is characterised in that: Height × width × a length of 104cm × 122cm × the 132cm of described microwave absorption room (1).
CN201610886024.0A 2016-10-11 2016-10-11 A kind of indoor barrier reflection removal system for radar experiment porch Pending CN106249213A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN106872489A (en) * 2017-02-19 2017-06-20 白茂森 A kind of survey blocking method of use microwave Doppler detection principle, device and purposes
CN106980118A (en) * 2017-03-29 2017-07-25 惠州市德赛西威汽车电子股份有限公司 The environment measuring device and its method of a kind of vehicle-mounted millimeter wave radar
CN110244270A (en) * 2019-06-26 2019-09-17 深圳迈睿智能科技有限公司 A kind of induction test device and the test method for microwave detector
CN110850379A (en) * 2019-11-27 2020-02-28 四川航天系统工程研究所 Active radar seeker assembly testing device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106872489A (en) * 2017-02-19 2017-06-20 白茂森 A kind of survey blocking method of use microwave Doppler detection principle, device and purposes
CN106980118A (en) * 2017-03-29 2017-07-25 惠州市德赛西威汽车电子股份有限公司 The environment measuring device and its method of a kind of vehicle-mounted millimeter wave radar
CN110244270A (en) * 2019-06-26 2019-09-17 深圳迈睿智能科技有限公司 A kind of induction test device and the test method for microwave detector
CN110850379A (en) * 2019-11-27 2020-02-28 四川航天系统工程研究所 Active radar seeker assembly testing device

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