CN104483672B - INSAR corner reflector - Google Patents

INSAR corner reflector Download PDF

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Publication number
CN104483672B
CN104483672B CN201510003198.3A CN201510003198A CN104483672B CN 104483672 B CN104483672 B CN 104483672B CN 201510003198 A CN201510003198 A CN 201510003198A CN 104483672 B CN104483672 B CN 104483672B
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CN
China
Prior art keywords
corner reflector
base
insar
gnss
observation
Prior art date
Application number
CN201510003198.3A
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Chinese (zh)
Other versions
CN104483672A (en
Inventor
张永伟
刘育红
颜景生
韩景敏
梁浩
胡玉禄
Original Assignee
山东省地质环境监测总站
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Application filed by 山东省地质环境监测总站 filed Critical 山东省地质环境监测总站
Priority to CN201510003198.3A priority Critical patent/CN104483672B/en
Publication of CN104483672A publication Critical patent/CN104483672A/en
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Publication of CN104483672B publication Critical patent/CN104483672B/en

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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
    • 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
    • G01S13/90Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • 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

Abstract

The invention discloses an INSAR corner reflector which comprises a pier base, a base and a corner reflector. A fixing embedded part connected with the base is arranged at the top of the pier base, the corner reflector is of a tetrahedral structure and comprises two side faces and one bottom face, a cross shaft is arranged on the bottom face, the corner reflector can rotate around the cross shaft, at least three columns are arranged on the base, the cross shaft enables two columns to be connected together, the bottom ends of the columns are connected with the base, the third column is connected with a corner reflector height elevation angle adjusting rod, the corner reflector height elevation angle adjusting rod is fixed to the corner reflector together, and a GNSS observation connector is arranged on a central point of the base. The INSAR corner reflector enables INSAR observation, GNSS observation and water level observation to be combined together, and switching between the INSAR observation and the GNSS observation can be performed only by turning one screw. The orientation switching of an INSAR satellite can be performed by turning three screws, accordingly device installation is simplified, expenditure is saved, and efficiency is improved.

Description

A kind of INSAR corner reflector

Technical field

The present invention relates to a kind of INSAR corner reflector.

Background technology

INSAR technology is a kind of effective ways of monitoring geologic hazard newly, adopt INSAR corner reflector can improve signal intensity and precision, but need to carry out accuracy comparison with level index, GNSS index, and existing INSAR corner reflector is without this function, GNSS, high precision level and INSAR technology can not be combined together, the job requirements of high precision monitor ground and land subsidence situation can not be completed.

Summary of the invention

The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of multi-functional, high-precision INSAR corner reflector is provided, GNSS observed by this reverberator, leveling observation combines, make that structure is simple, observed azimuth, observed altitude angle orientation between conversion simple and convenient, the equipment that simplifies is installed, has saved funds, is improve efficiency.

For achieving the above object, the present invention adopts following technical proposals:

A kind of INSAR corner reflector, comprise pier base, base and corner reflector, described pier base is reinforced concrete structure, described pier base top is provided with the fixing built-in fitting be connected with base, described corner reflector comprises a bottom surface, described bottom surface be provided with two adjacent and docking side, described side and bottom surface are isosceles right triangle, described bottom surface is provided with transverse axis, described corner reflector can rotate around transverse axis, described base is provided with at least 3 columns, described transverse axis will wherein link together by two columns, the bottom of described column is connected with base, described 3rd column connects H type corner reflector elevation angle adjuster bar, can pitch regulation corner reflector elevation angle and flip angle reverberator, described corner reflector elevation angle adjuster bar and corner reflector are fixed together, the central point of described base is provided with GNSS and observes connector, described pier base there is leveling point.

Described base xsect is circular.

Described base is provided with 3 isocentric circular arc grooves along base center, fixing built-in fitting is connected with arc groove, through arc groove, rotating base, groove can realize base and rotate within the scope of certain angle under the restriction of fixing built-in fitting, then realizes corner reflector and rotates in certain angle.

As long as unload one, the bottom fixed screw of the 3rd column, INSAR corner reflector can carry out turning to observation pier side, thus do not affect GNSS observed altitude angle, then install GNSS and observe connector, GNSS observation can be carried out, after observation terminates, only a fixed screw of the 3rd column need be fixed on original position, former INSAR corner reflector observer state can be recovered.

As long as unclamp three concentric grooves top fixed screws of base, INSAR corner reflector can carry out level orientation rotation, for the orientation of other landsat, regulate 2 fixed screws of the 3rd column, INSAR corner reflector elevation angle can be carried out adjustment is set.

Beneficial effect of the present invention is: INSAR corner reflector of the present invention is observed INSAR first, GNSS observes, leveling observation combines, only need turn a screw, the conversion that the observation of INSAR corner reflector is observed with GNSS can be carried out, turn two screws and can carry out the conversion of INSAR elevation of satellite.Turn three screws, the orientation conversion of INSAR satellite can be carried out, thus the equipment that simplifies is installed, has saved funds, improve efficiency.

Accompanying drawing explanation

Fig. 1 is the structural representation of INSAR corner reflector of the present invention;

Wherein, 1 is corner reflector, and 2 is height regulating rod, and 3 is transverse axis, and 4 is column, and 5 is base, and 6 is fixed leg, and 7 is groove, and 8 is GNSS connecting hole, and 9 is leveling point, and 10 is pier base.

Embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

As shown in Figure 1, INSAR corner reflector, is made up of pier base 10, base 5 and corner reflector 1, GNSS connecting hole 8, leveling point 9.Pier base 10 is reinforced concrete structure, be of a size of 500mm (diameter) * 2000mm (highly), underground foundation is 1800*1800*1200 (300) mm, the fixed leg 6 be connected with base 5 is contained at top, corner reflector 1 is the cone be made up of three thick isosceles right triangle aluminium sheets of 3mm, isosceles right triangle aluminium sheet right angle length of side 1200mm; Between aluminium sheet, there is 40mm angle bar housing junction.Corner reflector 1 is provided with Ф=15mm right angle bottom outlet and is convenient to leak and dust; Diameter Ф=360mm is highly for the circular steel plate of 12mm is base 5, on base 5 with base center for the center of circle, the circular arc of radius R=170mm arranges trisection point, be that the center of circle is used for established angle reverberator diameter Ф=16mm brill to connect open-work with trisection point, trisection point is defined as A, B, C respectively; A, B point lays high 200mm* diameter Ф=14mm column 4, and column 4 top is 20mm transverse axis 3, and transverse axis 3 connects the column 4 that AB 2 lays; C point lays the height regulating rod 2 of H type length 400mm* diameter Ф=14mm; Between A, B, C 3, the saturating groove of milling width 20mm arc length 150mm concentric circles, i.e. groove 7, connects three fixed legs 6.The central point of base 5 is provided with GNSS connecting hole 8, and connect GNSS and observe connector, below pier base 10, north side is provided with stainless steel water on schedule 9.

Corner reflector 1 profile is the tetrahedral structure of three equilateral right-angle triangle compositions, and comprise a, b, c tri-, wherein a, b are side, c is bottom surface, bottom surface answer level lay install, lean against transverse axis 3 parallel with base 5, as long as base 5 level then bottom surface level reach requirement.Utilize C point to lay H type height regulating rod and carry out pitch regulation ± 40 ° (upset is 160 °).Horizontally rotate the groove of Adjust and use width 20mm arc length 150mm, can Level tune ± 45 ° (roughly utilizing rtk or compass to carry out position angle demarcation in advance).

As long as unload a fixed screw of C column, INSAR corner reflector can overturn, and the GNSS that screws on observes connector, thus carries out GNSS observation, after observation terminates, only namely of a C column fixed screw need be fixed on original position recovers former INSAR corner reflector observer state.

As long as the saturating groove of the concentric circles unclamping base three top fixed screws, can carry out level orientation rotation, for the orientation of other landsat, regulate a fixed screw of C column, INSAR corner reflector elevation angle can be carried out adjustment is set.

Adopt this technology in the North China Plain (Shandong) Ground Subsidence Monitoring early warning and controllability Study work, obtain the check point of image more accurately, to make INSAR measurement obtain reference point more accurately, improve decipher precision, and then improve the monitoring quality for land subsidence of INSAR.

By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.

Claims (7)

1. an INSAR corner reflector, it is characterized in that, comprise pier base, base and corner reflector, described pier base top is provided with the fixing built-in fitting be connected with base, described corner reflector comprises a bottom surface, described bottom surface be provided with two adjacent and docking side, described bottom surface is provided with transverse axis, described corner reflector can rotate around transverse axis, described base is provided with at least 3 columns, described transverse axis will wherein link together by two columns, the bottom of described column is connected with base, described 3rd column joint angle reflector height angle adjuster bar, described corner reflector elevation angle adjuster bar and angle transmitter are fixed together, the central point of described base is provided with GNSS and observes connector, described corner reflector height regulating rod pitch regulation corner reflector elevation angle and flip angle reverberator, described pier base is provided with leveling point.
2. INSAR corner reflector as claimed in claim 1, it is characterized in that, described pier base is reinforced concrete structure.
3. INSAR corner reflector as claimed in claim 1, it is characterized in that, described side and bottom surface are isosceles right triangle.
4. INSAR corner reflector as claimed in claim 1, is characterized in that, described base xsect is circular.
5. INSAR corner reflector as claimed in claim 1, it is characterized in that, described base is provided with arc groove.
6. INSAR corner reflector as claimed in claim 1, is characterized in that, be provided with shrinkage pool in the heart in described base, observes connector for fixing GNSS.
7. INSAR corner reflector as claimed in claim 5, it is characterized in that, described fixing built-in fitting is connected with arc groove, and through arc groove.
CN201510003198.3A 2015-01-05 2015-01-05 INSAR corner reflector CN104483672B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510003198.3A CN104483672B (en) 2015-01-05 2015-01-05 INSAR corner reflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510003198.3A CN104483672B (en) 2015-01-05 2015-01-05 INSAR corner reflector

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CN104483672A CN104483672A (en) 2015-04-01
CN104483672B true CN104483672B (en) 2015-07-01

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990535A (en) * 2015-08-04 2015-10-21 天津市测绘院 Level/InSAR integrated monitoring device
CN106093894B (en) * 2016-06-01 2018-11-20 中国科学院电子学研究所 A kind of passive dihedral angle externally coefficient potentiometer
CN106443603B (en) * 2016-09-09 2019-12-20 中国科学院电子学研究所 Corner reflector with pointing measurement reference and special pointing measurement equipment
CN107515397A (en) * 2017-07-17 2017-12-26 中国南方电网有限责任公司超高压输电公司大理局 Based on InSAR technology high-frequencies earthquake areas current conversion station slope sedimentation monitoring method
CN108519589B (en) * 2018-03-08 2019-10-11 武汉大学 Spaceborne laser altimeter system instrument footmark localization method based on passive target
CN108646222B (en) * 2018-04-24 2020-04-07 北京环境特性研究所 Radar scattering cross section visible angle domain corner reflector
CN109883291B (en) * 2019-03-18 2020-06-05 东南大学 Device for measuring vertical displacement of bridge body

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201804104U (en) * 2010-09-15 2011-04-20 长安大学 Assembly type manual corner reflector
CN103630879A (en) * 2013-03-05 2014-03-12 中国科学院电子学研究所 Corner reflector
CN203909274U (en) * 2014-04-30 2014-10-29 北京市水文地质工程地质大队 Microwave enhancement reflection apparatus in three dimensional variable mode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201804104U (en) * 2010-09-15 2011-04-20 长安大学 Assembly type manual corner reflector
CN103630879A (en) * 2013-03-05 2014-03-12 中国科学院电子学研究所 Corner reflector
CN203909274U (en) * 2014-04-30 2014-10-29 北京市水文地质工程地质大队 Microwave enhancement reflection apparatus in three dimensional variable mode

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