Assembled radar satellite triangular reflector

A reflector and assembled technology, which is applied in the field of radar remote sensing, can solve the problems of poor stability of radar satellite triangular reflectors and strong professionalism in on-site inclination adjustment, and achieve the effect of increasing stability and wind resistance and reducing professionalism
CN112014802APending Publication Date: 2020-12-01WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2020-12-01

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Abstract

The invention belongs to the technical field of radar remote sensing, and discloses an assembled radar satellite triangular reflector, which comprises a triangular reflector body and a support assembly, and is characterized in that the triangular reflector body is detachably mounted on the support assembly; the support assembly comprises a first supporting plate and an installation bottom plate; the section of the first supporting plate is in a right trapezoid shape, the right-angle side of the right trapezoid is fixedly installed on the installation bottom plate, and the included angle between the hypotenuse of the right trapezoid and the horizontal plane is matched with the radar satellite incident angle. The problems that in the prior art, a triangular reflector of a synthetic apertureradar satellite is poor in stability, and the professionality of on-site inclination angle adjustment is too high are solved. The inclination angle of the triangular reflector is adjusted by dependingon the design of the trapezoidal bevel edge angle of the first supporting plate, and is accurately adapted to the incident angle of a radar satellite, so that the professionality of field inclinationangle adjustment can be reduced; and the stability and the wind resistance of the triangular reflector are greatly improved through the structural design of the first supporting plate.
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Description

technical field

[0001] The invention relates to the technical field of radar remote sensing, in particular to an assembled radar satellite triangular reflector. Background technique

[0002] The artificial triangular reflector is usually composed of three mutually perpendicular surfaces, and it is a device that can return the radar incident signal to the radar signal transmitting source (or radar antenna) along the axis of the reflector.

[0003] To accommodate low-to-medium resolution radar satellites, such as ESA's Sentinel-1, the panels of the triangular reflectors need to be large enough, making the device huge. Theoretically, if the verticality of the three mutually perpendicular surfaces of the triangular reflector is greater than 1°, the radar reflection signal will be rapidly attenuated, and the curvature of the panel should also be less than 3-5mm. Usually, in order to ensure the verticality of the three mutually perpendicular surfaces and the curvature of the pane...

Claims

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