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Angle measurement fuzzy confidence calculation device and method of array antenna

A technology of an array antenna and a computing device is applied in the field of an array antenna angle measurement ambiguity confidence calculation device, and can solve problems such as direction finding ambiguity errors of a passive direction finding system

Inactive Publication Date: 2019-05-31
BEIJING INST OF REMOTE SENSING EQUIP
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the periodicity of the phase, the passive direction-finding system may have direction-finding ambiguity errors. The present invention provides a method for calculating the angle-measurement ambiguity confidence degree of the passive direction-finding system to judge the correctness of the direction-finding system.

Method used

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  • Angle measurement fuzzy confidence calculation device and method of array antenna
  • Angle measurement fuzzy confidence calculation device and method of array antenna
  • Angle measurement fuzzy confidence calculation device and method of array antenna

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Embodiment

[0037] The implementation steps of an array antenna angle measurement fuzzy confidence degree calculation method proposed by the present invention are as follows:

[0038] The first step is to build an array antenna angle measurement system

[0039] The present invention proposes a method for calculating the fuzzy confidence degree of array antenna angle measurement, and constructs an array antenna direction finding system, which includes an antenna array 1, a receiving channel 2, a signal processing unit 3, a signal extraction acquisition solution module 4, angle measurement and measurement An angle confidence calculation module 5; a signal extraction acquisition and calculation module 4 is placed in the receiving channel 2, and an angle measurement and angle measurement confidence calculation module 5 is placed in the signal processing unit 3.

[0040] The antenna array 1 includes N antenna elements, and the center of the antenna array 1 is the coordinate origin to establish...

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Abstract

The invention discloses an angle measurement fuzzy confidence calculation device and method of an array antenna. An ray antenna direction-finding system comprises an antenna array (1), a receiving channel (2), a signal processing unit (3), a signal extraction module (4), a signal acquisition and calculation module (5), an angle measurement confidence calculation module (6). The signal extraction module (4) is arranged in the receiving channel (2); and the signal acquisition and calculation module (5) and the angle measurement confidence calculation module (6) are arranged in the signal processing unit (3). The antenna array (1) receives a microwave signal of a target radiation source; the signal is transmitted to the signal processing unit (3) via the receiving channel (2); and the signalprocessing unit (3) completes direction finding of the target radiation source as well as angle measurement confidence calculation.

Description

technical field [0001] The invention relates to the technical field of passive radar and other passive signal direction finding, in particular to a device and method for calculating fuzzy confidence degree of array antenna angle measurement. Background technique [0002] The current mainstream high-precision passive direction finding method mainly uses phase direction finding. Due to the periodicity of the phase, the passive direction-finding system may have direction-finding ambiguity errors. The invention provides a method for calculating the angle-measurement ambiguity confidence degree of the passive direction-finding system for judging the correctness of the direction finding. Contents of the invention [0003] The purpose of the present invention is to provide a device and method for calculating the fuzzy confidence degree of array antenna angle measurement, which is used for judging the correctness of the direction finding of the passive direction finding system. ...

Claims

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Application Information

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IPC IPC(8): G01S3/48
Inventor 陈泽礼顾琴昱吴嘉宝
Owner BEIJING INST OF REMOTE SENSING EQUIP
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