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Multichannel SAR antenna performance detection method based on wireless single TR calibration

A detection method and multi-channel technology, applied to radio wave measurement systems, instruments, etc., can solve the problems of no discovery, no data collection, etc., and achieve the effects of improving detection accuracy, simple and fast detection, and improving detection efficiency

Active Publication Date: 2020-04-10
SHANGHAI SATELLITE ENG INST
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At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

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  • Multichannel SAR antenna performance detection method based on wireless single TR calibration
  • Multichannel SAR antenna performance detection method based on wireless single TR calibration
  • Multichannel SAR antenna performance detection method based on wireless single TR calibration

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0037] A kind of multi-channel SAR antenna performance detection method based on wireless single TR calibration provided by the present invention comprises the following steps:

[0038] Step 1: Use the near-field probe to conduct a wireless single-TR calibration test on the multi-channel SAR antenna, including testing the signal of the complete main channel of the antenna, so as to detect the performance status of the SAR antenna;

[0039] Step 2: According to the working frequency band and geometric di...

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Abstract

The invention provides a a multi-channel SAR (Synthetic Aperture Radar) antenna performance detection method based on wireless single Transmitter and Receiver calibration. The objective of the invention is to verify the influence of a satellite SAR antenna on the performance change of a multi-channel SAR antenna before and after long-distance transportation and vibration tests. According to the method, the satellite transition test cost and the technical risk possibly caused by folding and unfolding of the antenna are greatly reduced, the SAR antenna performance after transportation and vibration tests is simply and quickly detected; meanwhile, compared with a traditional directional diagram repeated detection method, a novel multi-channel SAR antenna detection method is provided, and thedetection efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of multi-channel SAR antenna performance testing, in particular to a multi-channel SAR antenna performance testing method based on wireless single TR calibration, especially to a wireless single TR A calibrated multi-channel SAR antenna performance detection method. Background technique [0002] SAR antenna, such as the expandable spaceborne synthetic aperture radar antenna based on shape memory polymer composite material disclosed in patent document CN108899632A, includes a plurality of upper trusses, a base and several antenna units, and a plurality of upper trusses are installed side by side on the base in parallel Each upper truss is provided with a plurality of antenna units along its length direction, and the plurality of antenna units are arranged in a matrix to form a rectangular board. [0003] After the SAR antenna has undergone long-distance transportation and whole-satellite vibration te...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/4026
Inventor 巩彪崔雷王艳军孙永岩信太林於伟民张伟李东霖
Owner SHANGHAI SATELLITE ENG INST
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