CN104569977A - Double-displacement-measurable corner reflector - Google Patents
Double-displacement-measurable corner reflector Download PDFInfo
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- CN104569977A CN104569977A CN201510000580.9A CN201510000580A CN104569977A CN 104569977 A CN104569977 A CN 104569977A CN 201510000580 A CN201510000580 A CN 201510000580A CN 104569977 A CN104569977 A CN 104569977A
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- vernier
- lead screw
- rolling lead
- screw
- corner reflector
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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
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a double-displacement-measurable corner reflector. The double-displacement-measurable corner reflector is characterized by comprising a triangular pyramidal reflector body, a Y-direction sliding module, a rotating module, an X-direction sliding module, a base module and connection rods, wherein the triangular pyramidal reflector body and the Y-direction sliding module are connected through the rotating module; the X-direction sliding module and the base module are located below the Y-direction sliding module; all the modules are connected through the connection rods. The double-displacement-measurable corner reflector has the advantages that a cardan joint allows the corner reflector to freely rotate in a three-dimensional space, so the repeating utilization rate is high; the corner reflector can move in the X-direction and the Y-direction and simulate radar sight direction displacement at high precision; vernier calipers are installed on the two sides of the X-direction and the Y-direction of the corner reflector, so reading errors caused by movement of the corner reflector can be reduced; the corner reflector is convenient to carry, easy and convenient to install and detach, low in cost, and capable of adjusting directions of the reflector body in the three-dimensional space and enhancing the reflection intensity and the SNR of a radar signal.
Description
Technical field
The present invention relates to a kind of dibit to move and can measure corner reflector, belong to ground-based radar interfere measurement technique field.
Background technology
Along with the development of InSAR technology, this technology not only can fast, large area obtains the topomap of various engineer's scale, can also be used for many fields such as resource exploration, environmental monitoring, hazard forecasting, the condition of a disaster assessment and military surveillance.Research and development can make full use of the theory and technology of InSAR, expands the application in economy and social sustainable development every field of InSAR technology, is more and more subject to the attention of academia and industrial community.InSAR has round-the-clock, that round-the-clock obtains earth's surface information feature with it becomes the indispensable sensor of technical field of earth observation, be particularly useful for the area of traditional optical sensor difficult in imaging, as hylaea area, cloudy mist, the rainy area etc. such as southwest, south China of China.Although InSAR is also with image form display atural object target signature, but it is different from imaging mode and the imaging mechanism of optical sensor, on the one hand for the every field of earth observation technology provides brand-new means, again new challenge is provided to data processing and information on the other hand, through the effort of decades, developing rapidly of radar remote sensing field, SAR imaging technique and the information processing technology have a great development.Meanwhile GBInSAR technology is at bridge, landslide, the deformation monitoring of glacier and dam uses ground also more and more extensive, in order to ensure the quantitative observation function of GBInSAR system, need to calibrate in observation area, because corner reflector can provide larger radar cross section, so usually as canonical reference target during calibration, laying angle reverberator in monitored area, but because usual corner reflector is installed complicated, recycling rate of waterused is low, quantitative simulation displacement can not be carried out, therefore, study a kind of scalable orientation and high efficiency corner reflector, the research of GBInSAR is had a very big significance.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of can in orthogonal both direction high-precision analog radar line of sight to the corner reflector of displacement, this corner reflector is installed simple, easy to carry, with low cost, in three dimensions, can change orientation arbitrarily, recycling rate of waterused is high.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of dibit is moved and can be measured corner reflector, it is characterized in that, comprise triangular pyramid type reflecting body, Y-direction sliding block, connect the rotating module of described triangular pyramid type reflecting body and Y-direction sliding block, be positioned at the connecting link of X-direction sliding block, base module and the above-mentioned all modules of connection below described Y-direction sliding block; Described triangular pyramid type reflecting body is welded to form by three pieces of identical isosceles right angle triangles; Described rotating module comprises support, universal joint and setscrew; Described universal joint is embedded in support, and is fixed by setscrew; Described triangular pyramid type reflecting body is connected by connecting link with universal joint; Described Y-direction sliding block comprises Y-direction side plate, Y-direction rolling lead screw rolling groove, Y-direction cover plate, Y-direction base plate, Y-direction vernier gib screw, Y-direction screw mandrel knob, Y-direction vernier scale, Y-direction vernier and Y-direction rolling lead screw; On described Y-direction rolling lead screw, cover has the connecting link for connecting described support and Y-direction rolling lead screw; Described Y-direction rolling lead screw rolls in rolling lead screw rolling groove in the Y direction back and forth; Two of described Y-direction rolling lead screw connects Y-direction screw mandrel knob; Described Y-direction vernier is connected with Y-direction rolling lead screw by connecting link; Described Y-direction vernier scale is fixed on Y-direction cover plate; The position of described Y-direction vernier gib screw on fixing Y-direction vernier in the Y direction vernier scale; Described X-direction sliding block comprises X-direction vernier gib screw, X-direction screw mandrel knob, X-direction vernier scale, X-direction vernier and X-direction rolling lead screw; Described Y-direction base plate is connected with X-direction rolling lead screw; On described X-direction rolling lead screw, cover has the connecting link for connecting described support and X-direction rolling lead screw; Two of described X-direction rolling lead screw connects X-direction screw mandrel knob; Described X-direction vernier is connected with X-direction rolling lead screw by connecting link; Described X-direction vernier scale is fixed on base; Described X-direction vernier gib screw is for the fixing position of X-direction vernier on X-direction vernier scale.
Aforesaid dibit is moved and can be measured corner reflector, it is characterized in that, described base module comprises base, pedestal, is arranged on lock-screw on described pedestal and fulcrum; Described fulcrum is positioned at the center of base; Described lock-screw is used for fixing fulcrum.
The beneficial effect that the present invention reaches: (1) universal joint can make corner reflector freely rotate in three dimensions, and recycling rate of waterused is high.(2) corner reflector can move along X, Y-direction, and high-precision guinea pig sight line is to displacement.(3) in the X of corner reflector, Y-direction both sides, vernier caliper has all been installed, can have reduced because corner reflector moves the reading error caused.(4) easy to carry, installing/dismounting is easy, and cost is low, can adjust the orientation of reflecting body in three dimensions, strengthens reflection strength and the signal to noise ratio (S/N ratio) of radar signal.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram of the present invention;
Fig. 2 is right section structural representation of the present invention;
Fig. 3 is side structure schematic diagram of the present invention;
Fig. 4 is plan structure schematic diagram of the present invention.
The implication of Reference numeral in figure:
1, 2, 3-isosceles right angle triangle, 4, 8, 13-connecting link, 5-universal joint, 6-setscrew, 7-support, 9-Y direction side plate, 10-Y direction rolling lead screw rolling groove, 11-Y direction cover plate, 12-Y direction base plate, 14X-X direction vernier gib screw, 14Y-Y direction vernier gib screw, 15X-X direction screw mandrel knob, 15Y-Y direction screw mandrel knob, 16X-X direction vernier scale, 16Y-Y direction vernier scale, 17X-X direction vernier, 17Y-Y direction vernier, 18X-X direction rolling lead screw, 18Y-Y direction rolling lead screw, 19-base, 20-lock-screw, 21-pedestal, 22-fulcrum.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
A kind of dibit of the present invention's design is moved and can be measured corner reflector, as Fig. 1, comprises triangular pyramid type reflecting body, Y-direction sliding block, rotating module, X-direction sliding block, base 19 module and the connecting link being connected above-mentioned all modules.
Triangular pyramid type reflecting body is welded to form by three pieces of identical isosceles right angle triangles 1,2,3.
Rotating module comprises support 7, universal joint 5 and setscrew 6.Universal joint 5 is embedded in support 7, and is fixed by setscrew 6.By regulating the angle position of universal joint 5, can change the orientation of triangular pyramid type reflecting body, object is the reflection strength in order to increase radar signal, improves the signal to noise ratio (S/N ratio) of radar signal, finally can pass through setscrew 6 permanent universal joint 5, and then the tapered reflecting body of fixed triangle.
Triangular pyramid type reflecting body is connected by connecting link 4 with universal joint 5.Rotating module is for connecting triangular pyramid type reflecting body and Y-direction sliding block.
Y-direction sliding block comprises Y-direction side plate 9, Y-direction rolling lead screw rolling groove 10, Y-direction cover plate 11, Y-direction base plate 12, Y-direction vernier gib screw 14Y, Y-direction screw mandrel knob 15Y, Y-direction vernier scale 16Y, Y-direction vernier 17Y and Y-direction rolling lead screw.The structure of X-direction sliding block is similar to Y-direction sliding block, comprises X-direction vernier gib screw 14X, X-direction screw mandrel knob 15X, X-direction vernier scale 16X, X-direction vernier 17X and X-direction rolling lead screw 18X.Y-direction base plate 12 is connected with X-direction rolling lead screw 18X.
Y-direction sliding block is arranged on above X-direction sliding block, is connected with rotating module connecting link 8.Connecting link 8 overlaps in the Y direction on rolling lead screw 18Y.
The structure of Y-direction sliding block is: Y-direction rolling lead screw 18Y to be arranged in Y-direction rolling lead screw 18Y rolling groove and can to roll back and forth.Two of Y-direction rolling lead screw 18Y connects Y-direction screw mandrel knob 15Y.Y-direction vernier 17Y is connected with Y-direction rolling lead screw 18Y by connecting link.Y-direction vernier scale 16Y is fixed on Y-direction cover plate 11.The position of Y-direction vernier gib screw 14Y on fixing Y-direction vernier 17Y in the Y direction vernier scale 16Y.
Rotate Y-direction screw mandrel knob 15Y, just can realize triangular pyramid type reflecting body and move along Y-direction, just can read the displacement of triangular pyramid type reflecting body along Y-direction by Y-direction vernier scale 16Y.
X-direction sliding block is arranged on the top of base 19 module, is connected with Y-direction sliding block connecting link 13.Connecting link 13 is enclosed within X-direction rolling lead screw 18X.
The structure of X-direction sliding block is identical with Y-direction sliding block: two of X-direction rolling lead screw 18X connects X-direction screw mandrel knob 15X.X-direction vernier 17X is connected with X-direction rolling lead screw 18X by connecting link.X-direction vernier scale 16X is fixed on base 19.X-direction vernier gib screw 14X is for the fixing position of X-direction vernier 17X on X-direction vernier scale 16X.
Rotate X-direction screw mandrel knob 15X, whole triangular pyramid type reflecting body can be driven to move in X direction, read X-direction displacement by the X-direction vernier scale 16X be arranged on base 19.
Base 19 module comprises base 19, pedestal 21, lock-screw 20 and fulcrum 22.Fulcrum 22 is positioned at the center of base 19, and lock-screw 20 is used for fixing fulcrum 22.Fulcrum 22 is connected with base 19, and reverberator can be made planar to rotate.
This equipment is easy to carry, installs simple and easy, serves good effect to the research of GBInSAR.
Drive whole triangular pyramid type reflecting body in the movement of X-direction by X-direction screw mandrel knob 15X, by the reading of X-direction vernier scale 16X, read triangular pyramid type reflecting body shift value in the X direction.By rotating Y-direction screw mandrel knob 15Y, triangular pyramid type reflecting body can be made to move in the Y direction, by the reading of Y-direction vernier scale 16Y, can exact shift be calculated.In order to reduce to rock cause reading error because corner reflector moves the vernier caused, the present invention has installed vernier scale in the X of corner reflector, Y-direction both sides, triangular pyramid type reflecting body can be made to rotate arbitrarily in three dimensions by universal joint 5, make the orientation of triangular pyramid type reflecting body consistent with the incident angle of radar signal, strengthen the reflection strength of radar signal, improve signal to noise ratio (S/N ratio).
Only the preferred embodiment of the present invention described in upper; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (2)
1. dibit is moved and can be measured corner reflector, it is characterized in that, comprise triangular pyramid type reflecting body, Y-direction sliding block, connect the rotating module of described triangular pyramid type reflecting body and Y-direction sliding block, be positioned at the connecting link of X-direction sliding block, base module and the above-mentioned all modules of connection below described Y-direction sliding block;
Described triangular pyramid type reflecting body is welded to form by three pieces of identical isosceles right angle triangles; Described rotating module comprises support, universal joint and setscrew; Described universal joint is embedded in support, and is fixed by setscrew; Described triangular pyramid type reflecting body is connected by connecting link with universal joint;
Described Y-direction sliding block comprises Y-direction side plate, Y-direction rolling lead screw rolling groove, Y-direction cover plate, Y-direction base plate, Y-direction vernier gib screw, Y-direction screw mandrel knob, Y-direction vernier scale, Y-direction vernier and Y-direction rolling lead screw;
On described Y-direction rolling lead screw, cover has the connecting link for connecting described support and Y-direction rolling lead screw; Described Y-direction rolling lead screw rolls in rolling lead screw rolling groove in the Y direction back and forth; Two of described Y-direction rolling lead screw connects Y-direction screw mandrel knob; Described Y-direction vernier is connected with Y-direction rolling lead screw by connecting link; Described Y-direction vernier scale is fixed on Y-direction cover plate; The position of described Y-direction vernier gib screw on fixing Y-direction vernier in the Y direction vernier scale;
Described X-direction sliding block comprises X-direction vernier gib screw, X-direction screw mandrel knob, X-direction vernier scale, X-direction vernier and X-direction rolling lead screw; Described Y-direction base plate is connected with X-direction rolling lead screw;
On described X-direction rolling lead screw, cover has the connecting link for connecting described support and X-direction rolling lead screw; Two of described X-direction rolling lead screw connects X-direction screw mandrel knob; Described X-direction vernier is connected with X-direction rolling lead screw by connecting link; Described X-direction vernier scale is fixed on base; Described X-direction vernier gib screw is for the fixing position of X-direction vernier on X-direction vernier scale.
2. dibit according to claim 1 is moved and can be measured corner reflector, it is characterized in that, described base module comprises base, pedestal, is arranged on lock-screw on described pedestal and fulcrum; Described fulcrum is positioned at the center of base; Described lock-screw is used for fixing fulcrum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000580.9A CN104569977B (en) | 2015-01-04 | 2015-01-04 | Dibit is moved and can measure corner reflector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000580.9A CN104569977B (en) | 2015-01-04 | 2015-01-04 | Dibit is moved and can measure corner reflector |
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| Publication Number | Publication Date |
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| CN104569977A true CN104569977A (en) | 2015-04-29 |
| CN104569977B CN104569977B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510000580.9A Expired - Fee Related CN104569977B (en) | 2015-01-04 | 2015-01-04 | Dibit is moved and can measure corner reflector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422313A (en) * | 2017-07-19 | 2017-12-01 | 武汉大学 | A kind of High Precision Automatic corner reflector system of normalization operation |
| CN108427103A (en) * | 2018-04-20 | 2018-08-21 | 中铁第四勘察设计院集团有限公司 | A kind of corner reflector for the calibration of ground-based radar echo-signal |
| CN112747204A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Surface measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422313A (en) * | 2017-07-19 | 2017-12-01 | 武汉大学 | A kind of High Precision Automatic corner reflector system of normalization operation |
| CN108427103A (en) * | 2018-04-20 | 2018-08-21 | 中铁第四勘察设计院集团有限公司 | A kind of corner reflector for the calibration of ground-based radar echo-signal |
| CN112747204A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Surface measuring device |
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| CN104569977B (en) | 2017-03-29 |
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