CN110095763A - A kind of radar test darkroom - Google Patents
A kind of radar test darkroom Download PDFInfo
- Publication number
- CN110095763A CN110095763A CN201910483276.2A CN201910483276A CN110095763A CN 110095763 A CN110095763 A CN 110095763A CN 201910483276 A CN201910483276 A CN 201910483276A CN 110095763 A CN110095763 A CN 110095763A
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- darkroom
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- hole
- test
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 230000002745 absorbent Effects 0.000 claims abstract description 23
- 239000002250 absorbent Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 12
- 238000004088 simulation Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- G01S7/40—Means for monitoring or calibrating
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The present invention relates to radar test technical fields, disclose a kind of radar test darkroom.The radar test darkroom includes the first darkroom, the second darkroom and third darkroom, and the first darkroom includes the first wall and the second wall, is provided with first through hole on the first wall, the second through-hole is provided on the second wall, radar is set in the first darkroom；Second darkroom is set to the first wall and is provided with corner reflector in the side of radar, the second darkroom；Third darkroom is set to the second wall and is provided with electromagnetic horn in the side of radar, third darkroom, the transmission path of the transmission path of radar and corner reflector perpendicular to radar and electromagnetic horn.The present invention will not be generated and be interfered with each other due to the oriented perpendicular of corner reflector and electromagnetic horn, improve radar test accuracy；Radar beam is limited in range of needs by first through hole and the second through-hole, so that the top and bottom in the second darkroom and third darkroom is not needed setting absorbent structure, is reduced construction cost.
Description
Technical field
The present invention relates to radar test technical field more particularly to a kind of radar test darkrooms.
Background technique
Millimeter wave refers to electromagnetic wave of the wavelength between 1-10mm, has the characteristics that wavelength is short, frequency range is wide, is easier to realize
Narrow beam, high resolution are not easy to be disturbed.Millimetre-wave radar is measurement testee relative distance, now to the height of speed, orientation
Accurate sensor, millimetre-wave radar mainly include dual-mode antenna, radio-frequency front-end, modulated signal, signal processing module etc..With thunder
Up to the development and progress of technology, millimetre-wave radar sensor starts to be applied to multiple necks such as automotive electronics, unmanned plane, intelligent transportation
Domain.
When millimetre-wave radar tests range simulation, need longer measuring distance that could obtain accurate mould
Quasi-distance.The test darkroom for being currently used for millimetre-wave radar range simulation is rectangle or square structure mostly, due to test
It is required that when using existing rectangle or square darkroom, the structural area in darkroom is larger, and absorbing material makes apart from long
Dosage is larger, and darkroom is caused to build higher cost；Meanwhile electromagnetic horn and target simulation corner reflector be in same orientation, meeting
It causes to interfere with each other.
Summary of the invention
Based on problem above, the purpose of the present invention is to provide a kind of radar test darkrooms, reduce darkroom construction cost, keep away
Exempt from electromagnetic horn to interfere with each other with corner reflector.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of radar test darkroom, comprising:
First darkroom, including the first wall and the second wall, are provided with first through hole on first wall, and described second
The second through-hole is provided on wall, the radar is set in first darkroom；
Second darkroom is set to first wall and is provided with angle in the side of the radar, second darkroom
Reflector；
Third darkroom is set to second wall and is provided with loudspeaker in the side of the radar, the third darkroom
Transmitting road of the transmission path of antenna, the radar and the corner reflector perpendicular to the radar and the electromagnetic horn
Diameter.
As the preferred embodiment in radar test darkroom of the invention, the cross section in first darkroom is octagon.
As the preferred embodiment in radar test darkroom of the invention, partition, the partition are provided in second darkroom
On be provided with third through-hole.
As the preferred embodiment in radar test darkroom of the invention, the height phase of the third through-hole and the first through hole
Deng.
As the preferred embodiment in radar test darkroom of the invention, the corner reflector is set to the partition backwards to described
The side of radar.
As the preferred embodiment in radar test darkroom of the invention, except first wall, second wall and with
Outside the third wall of the second wall face, absorbent structure is provided on described first remaining dark indoor wall.
As the preferred embodiment in radar test darkroom of the invention, the absorbent structure is to inhale wave wedge.
It is described in addition to the top and bottom in second darkroom as the preferred embodiment in radar test darkroom of the invention
Remaining metope in the second darkroom is respectively provided with the absorbent structure.
It is described in addition to the top and bottom in the third darkroom as the preferred embodiment in radar test darkroom of the invention
Remaining metope in third darkroom is respectively provided with the absorbent structure.
As the preferred embodiment in radar test darkroom of the invention, the cross section in second darkroom is rectangle.
The invention has the benefit that
Radar test darkroom provided by the invention radar is arranged in the first darkroom, by being arranged in the first darkroom
First wall and the second wall, and the second darkroom is set backwards to the side of radar in the first wall, angle is set in the second darkroom
Reflector is arranged third darkroom backwards to the side of radar in the second wall, electromagnetic horn is arranged in third darkroom, due to radar
With the transmission path of corner reflector perpendicular to the transmission path of radar and electromagnetic horn, the orientation of corner reflector and electromagnetic horn is hung down
Directly, it will not generate and interfere with each other, improve the accuracy of radar test；Due to being arranged first through hole on the first wall, first
When the diagonal reflector radar beam of the radar in darkroom, radar beam enters the second darkroom, first through hole by first through hole
Radar beam is limited in range of needs, so that the top and bottom in the second darkroom is not needed setting absorbent structure, reduces and build
Cause this；Since the second through-hole being arranged on the second wall, when the radar in the first darkroom emits radar beam to electromagnetic horn, thunder
Third darkroom is entered by the second through-hole up to wave beam, radar beam is limited in range of needs by the second through-hole, makes third darkroom
Top and bottom do not need setting absorbent structure, reduce construction cost.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, institute in being described below to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also implement according to the present invention
The content of example and these attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram in the radar test darkroom that the specific embodiment of the invention provides；
Fig. 2 is the operation schematic diagram in the radar test darkroom that the specific embodiment of the invention provides.
In figure:
The first darkroom 1-；The second darkroom 2-；3- third darkroom；4- absorbent structure；5- corner reflector；
The first wall of 11-；The second wall of 12-；13- third wall；
21- partition；
100- radar.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", only
For descriptive purposes, it is not understood to indicate or imply relative importance.Wherein, term " first position " and " second position "
For two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be mechanical connection,
It is also possible to be electrically connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
Connection.For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
The present embodiment provides a kind of radar test darkroom, it is particularly suitable for carrying out range simulation test to millimetre-wave radar,
As shown in Figure 1, the radar test darkroom includes the first darkroom 1, the second darkroom 2 and third darkroom 3.First darkroom 1, the second darkroom
2 and third darkroom 3 be used to the interference tested radar 100 of isolation outer signals.
Specifically, the first darkroom 1 includes the first wall 11 and the second wall 12, is provided with first through hole on the first wall 11
(not shown) is provided with the second through-hole (not shown) on the second wall 12, and radar 100 is set in the first darkroom 1.
Optionally, the first wall 11 and the second wall 12 are vertically arranged, convenient on 100 the first wall of face 11 of radar first through hole and
The second through-hole on second wall 12 emits radar signal.Radar 100 mainly includes dual-mode antenna, radio-frequency front-end, modulated signal
With signal processing module etc., realized by receiving signal and emitting the relevant treatment of signal to target range, orientation, relative velocity
Detection.Radar beam is limited in range of needs by first through hole and the second through-hole respectively, is avoided radar beam and is scattered too
Multipair test result impacts.For reduce the first darkroom 1 construction cost, in the present embodiment, optionally, the first darkroom 1
Cross section be octagon, be compared to rectangle darkroom, section is that the wall area in octagonal darkroom is smaller, correspondingly,
4 total amount of absorbent structure for needing to be laid on surface of wall is reduced, and effectively reduces the construction cost in the first darkroom 1.In other realities
It applies in example, the cross section in the first darkroom 1 may be the polygons such as hexagon, dodecagon, and specific facilities need basis to adopt
Depending on the rounding of 4 size of absorbent structure requires.
For the construction cost for further decreasing the first darkroom 1, optionally, except the first wall 11, the second wall 12 and with
Outside the third wall 13 of second wall, 12 face, be provided with absorbent structure 4 on remaining wall in the first darkroom 1, due to
Only have less radar beam that can be reflected on the first wall 11, the second wall 12 and third wall 13 in test process, so the
One wall 11, the second wall 12 and third wall 13 can not be laid with absorbent structure 4.Optionally, absorbent structure 4 is to inhale wave point
It splits.Inhaling wave wedge mainly has polyurethane foam type, non-woven fabrics nonflammable, silicate board metal film packaging etc., can absorb or
Substantially weaken the electromagnetic wave energy for projecting its surface, to reduce the interference of electromagnetic wave.
Second darkroom 2 is set to the first wall 11 and is provided with corner reflector in the side of radar 100, the second darkroom 2
5.It should be noted that simulated target of the corner reflector 5 as 100 test of radar, corner reflector 5 is also known as radar reflector,
Pass through the indicator wave mirror for the different size that sheet metal root Ju difference purposes is made into.When radar electromagnetic wave scanning to corner reflection
After device 5, electromagnetic wave can generate refraction amplification in metal angle, generate very strong echo-signal, occur on the screen of radar 100
Very strong echo target.
In the present embodiment, the second darkroom 2 uses traditional rectangular configuration, is easy to implement longer-distance radar 100 and surveys
Die trial is quasi-, and optionally, the cross section in the second darkroom 2 is rectangle.To avoid radar beam from spreading in the air too much, optionally,
It is provided with partition 21 in second darkroom 2, is provided with third through-hole on partition 21, being limited in radar beam by third through-hole needs
It asks in range, is radiated on corner reflector 5 with being more concentrated at.To further prevent radar beam diffusion too many, optionally, third
Through-hole is equal with the height of first through hole, and radar beam passes sequentially through first through hole and third through-hole is radiated on corner reflector 5.
It should be noted that corner reflector 5 is consistent with the height of first through hole and third through-hole, radar is believed convenient for corner reflector 5
It number is fully reflected, improves the accuracy of radar test.It, can be easy to implement longer-distance 100 test simulation of radar
Selection of land, corner reflector 5 are set to side of the partition 21 backwards to radar 100.For reduce the second darkroom 2 construction cost, optionally,
In addition to the top and bottom in the second darkroom 2, remaining metope in the second darkroom 2 is respectively provided with absorbent structure 4, due in the first wall 11
Upper setting first through hole, when the radar 100 in the first darkroom 1 emits radar beam to corner reflector 5, radar beam is logical by first
Hole enters the second darkroom 2, and radar beam is limited in range of needs by first through hole, makes the top and bottom in the second darkroom 2 not
It needs to be arranged absorbent structure 4, reduces construction cost.
Third darkroom 3 is set to the second wall 12 and is provided with electromagnetic horn in the side of radar 100, third darkroom 3
Transmission path of the transmission path of (not shown), radar 100 and corner reflector 5 perpendicular to radar 100 and electromagnetic horn, loudspeaker
Antenna is for receiving power and frequency that 100 signal of radar measures radar 100.Due to the side of corner reflector 5 and electromagnetic horn
Position is vertical, will not generate and interfere with each other, and improves the accuracy of the test of radar 100.For reduce third darkroom 3 construction cost,
Optionally, in addition to the top and bottom in third darkroom 3, remaining metope in third darkroom 3 is respectively provided with absorbent structure 4, due to
Second through-hole is set on two walls 12, and when the radar 100 in the first darkroom 1 emits radar beam to electromagnetic horn, radar beam is logical
It crosses the second through-hole and enters third darkroom 3, radar beam is limited in range of needs by the second through-hole, makes the top surface in third darkroom 3
Setting absorbent structure 4 is not needed with bottom surface, reduces construction cost.It should be noted that the ruler of first through hole and third through-hole
When very little size need to be according to practical application, depending on the first wall, partition 21, corner reflector 5 and the size in the second darkroom and position,
For the prior art, details are not described herein, and the size setting of the second through-hole is similarly.
Radar test darkroom provided in this embodiment, in test simulation target, as shown in Fig. 2, main includes following several
A step: firstly, radar 100, which is directed at the first through hole on the first wall 11, emits radar beam；Secondly, radar wave speed pass through every
Third through-hole on plate 21 is radiated in corner reflector 5 (simulated target)；Then, radar wave speed is reflected is connect by radar 100
It receives；Finally, being realized to corner reflector 5 by receiving signal and emitting the relevant treatment of signal apart from, the spy of orientation, relative velocity
It surveys.
Radar test darkroom provided in this embodiment, when testing the frequency and power of radar 100, main includes following several
A step: firstly, radar 100, which is directed at the second through-hole on the second wall 12, emits radar beam；Secondly, radar beam is by loudspeaker
Its line absorption measures the frequency and power of radar 100.
Radar test darkroom provided in this embodiment radar 100 is arranged in the first darkroom 1, by the first darkroom 1
The first wall 11 of interior setting and the second wall 12, and second darkroom 2 is set backwards to the side of radar 100 in the first wall 11,
Corner reflector 5 is set in second darkroom 2, third darkroom 3 is set backwards to the side of radar 100 in the second wall 12, it is dark in third
Electromagnetic horn is set in room 3, since the transmission path of radar 100 and corner reflector 5 is perpendicular to the hair of radar 100 and electromagnetic horn
Rays diameter, the oriented perpendicular of corner reflector 5 and electromagnetic horn will not be generated and be interfered with each other, and improve the accurate of the test of radar 100
Property；Since first through hole being arranged on the first wall 11, the radar 100 in the first darkroom 1 emits radar beam to corner reflector 5
When, radar beam enters the second darkroom 2 by first through hole, and radar beam is limited in range of needs by first through hole, makes the
The top and bottom in two darkrooms 2 do not need setting absorbent structure 4, reduce construction cost；Due to being arranged on the second wall 12
Second through-hole, when the radar 100 in the first darkroom 1 emits radar beam to electromagnetic horn, radar beam is entered by the second through-hole
Radar beam is limited in range of needs by third darkroom 3, the second through-hole, and the top and bottom in third darkroom 3 is made not need to set
Absorbent structure 4 is set, construction cost is reduced.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments here, be able to carry out for a person skilled in the art it is various it is apparent variation, again
Adjustment and substitution are without departing from protection scope of the present invention.Therefore, although by above embodiments to the present invention carried out compared with
For detailed description, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, can be with
Including more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of radar test darkroom characterized by comprising
It is logical to be provided with first on first wall (11) for first darkroom (1), including the first wall (11) and the second wall (12)
Hole, the second through-hole is provided on second wall (12), and the radar (100) is set in first darkroom (1)；
Second darkroom (2) is set to side of first wall (11) backwards to the radar (100), and passes through described first
Through-hole is connected to first darkroom (1), is provided with corner reflector (5) in second darkroom (2)；
Third darkroom (3) is set to side of second wall (12) backwards to the radar (100), and passes through described second
Through-hole is connected to first darkroom (1), is provided with electromagnetic horn in the third darkroom (3), the radar (100) with it is described
Transmission path of the transmission path of corner reflector (5) perpendicular to the radar (100) and the electromagnetic horn.
2. radar test darkroom according to claim 1, which is characterized in that the cross section of first darkroom (1) is eight
Side shape.
3. radar test darkroom according to claim 1, which is characterized in that be provided with partition in second darkroom (2)
(21), third through-hole is provided on the partition (21).
4. radar test darkroom according to claim 3, which is characterized in that the third through-hole and the first through hole
It is highly equal.
5. radar test darkroom according to claim 3, which is characterized in that the corner reflector (5) be set to it is described every
Side of the plate (21) backwards to the radar (100).
6. radar test darkroom according to claim 1, which is characterized in that remove first wall (11), described second
Wall (12) and with the third wall (13) of the second wall (12) face outside, remaining wall in first darkroom (1)
Absorbent structure (4) are provided on body.
7. radar test darkroom according to claim 6, which is characterized in that the absorbent structure (4) is to inhale wave wedge.
8. radar test darkroom according to claim 6, which is characterized in that remove the top surface and bottom of second darkroom (2)
Outside face, remaining metope of second darkroom (2) is respectively provided with the absorbent structure (4).
9. radar test darkroom according to claim 6, which is characterized in that remove the top surface and bottom of the third darkroom (3)
Outside face, remaining metope of the third darkroom (3) is respectively provided with the absorbent structure (4).
10. -9 described in any item radar test darkrooms according to claim 1, which is characterized in that the cross of second darkroom (2)
Section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483276.2A CN110095763B (en) | 2019-06-04 | 2019-06-04 | Radar test darkroom |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483276.2A CN110095763B (en) | 2019-06-04 | 2019-06-04 | Radar test darkroom |
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| Publication Number | Publication Date |
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| CN110095763A true CN110095763A (en) | 2019-08-06 |
| CN110095763B CN110095763B (en) | 2024-05-28 |
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| CN201910483276.2A Active CN110095763B (en) | 2019-06-04 | 2019-06-04 | Radar test darkroom |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021046797A1 (en) * | 2019-09-12 | 2021-03-18 | 深圳市大疆创新科技有限公司 | Antenna pattern test method and device, and storage medium |
| WO2023092432A1 (en) * | 2021-11-25 | 2023-06-01 | 华为技术有限公司 | Radar testing system |
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| CN109061588A (en) * | 2018-10-23 | 2018-12-21 | 南京俊禄科技有限公司 | A kind of test device and method of Shipboard Radar System |
| CN210572721U (en) * | 2019-06-04 | 2020-05-19 | 北京道锐达科技有限公司 | Radar test darkroom |
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2019
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| JP2008145177A (en) * | 2006-12-07 | 2008-06-26 | Denso Corp | Inspection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021046797A1 (en) * | 2019-09-12 | 2021-03-18 | 深圳市大疆创新科技有限公司 | Antenna pattern test method and device, and storage medium |
| WO2023092432A1 (en) * | 2021-11-25 | 2023-06-01 | 华为技术有限公司 | Radar testing system |
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| Publication number | Publication date |
|---|---|
| CN110095763B (en) | 2024-05-28 |
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