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Test method for RCS measurement background cancellation and indoor RCS test system

A test system and test method technology, applied in radio wave measurement systems, measurement devices, instruments, etc., can solve the problems of no background cancellation, difficult to filter fixed clutter, etc., to improve the effect and improve the test accuracy. Effect

Inactive Publication Date: 2020-06-12
BEIJING INST OF ENVIRONMENTAL FEATURES
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  • Abstract
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  • Application Information

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Problems solved by technology

In the traditional RCS test process, when using a metal bracket, background cancellation is not performed, which makes it difficult to filter out fixed clutter other than the support mechanism

Method used

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  • Test method for RCS measurement background cancellation and indoor RCS test system
  • Test method for RCS measurement background cancellation and indoor RCS test system

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see figure 1 , is a schematic structural diagram of an indoor RCS test system according to a preferred embodiment of the present invention. Such as figure 1 As shown, the indoor RCS testing system provided by this embodiment includes: a metal shielding case 1 , and a radar transceiver system, a target 2 and a metal bracket 3 placed i...

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Abstract

The invention relates to a test method for RCS measurement background cancellation, an RCS measurement background cancellation device and an indoor RCS test system. The method comprises the followingsteps of measuring a target echo signal by using the indoor RCS test system, wherein the indoor RCS test system comprises a metal shielding shell, and a radar transceiving system, a target and a metalbracket which are arranged in the metal shielding shell; measuring a background echo signal after the target and the metal bracket are removed; and performing vector cancellation according to the target echo signal and the background echo signal to obtain an echo signal after background cancellation, and obtaining an RCS value of the target based on the echo signal. According to the invention, the background cancellation is carried out according to the background data of an empty darkroom after the metal bracket is removed, the influence of antenna direct leakage and the fixed clutters on thewall, the ground and the like on the test is eliminated while the scattering influence of the bracket is not introduced, the background cancellation effect in the RCS test is improved, and the test accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of RCS testing, in particular to a testing method for RCS measurement background cancellation, an RCS measurement background cancellation device and an indoor RCS testing system. Background technique [0002] As an important index, radar cross section (RCS) has been paid more and more attention by people, and the test method of RCS has become more accurate, reliable and efficient with the development of technology. RCS measurement methods can be divided into two directions: indoor measurement and outdoor measurement according to site conditions. Among them, indoor measurement is often limited by space, and it is necessary to use a compact field to achieve the far-field conditions required for RCS testing. The biggest advantage of the indoor field is that the electromagnetic environment is stable, and it is not easily disturbed by external factors. The clutter in the indoor field is mainly fixed clutter, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41G01S7/02
CPCG01S7/41G01S7/023G01S7/02G01S7/027
Inventor 杨景轩侯鑫刘拓
Owner BEIJING INST OF ENVIRONMENTAL FEATURES