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Method and device for positioning near-field interference source of high-frequency radio fixed direction finding station

A positioning method and technology of direction finding stations, applied in direction finders using radio waves, directional multi-channel systems using radio waves, radio wave measurement systems, etc., can solve the problem of accurate positioning of near-field interference sources that cannot be used by direction finding stations and other problems to achieve the effect of alleviating accurate positioning

Active Publication Date: 2017-02-08
成都星象科技有限公司
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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a method and device for locating the near-field interference source of a high-frequency radio fixed direction-finding station, which can locate the near-field interference source of the direction-finding station, and alleviate the inability of the existing technology to locate the direction-finding station. The problem of accurate location of the near-field interference source of the station

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  • Method and device for positioning near-field interference source of high-frequency radio fixed direction finding station
  • Method and device for positioning near-field interference source of high-frequency radio fixed direction finding station

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[0023] 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 are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...

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Abstract

The invention provides a method and device for positioning a near-field interference source of a high-frequency radio fixed direction finding station. The method comprises the steps of determining a distance range of near-field interference sources which the direction finding station can position according to the radius of a circular antenna array of the direction finding station and a maximum allowable phase error of the direction finding station; performing virtualization on the circular antenna array according to the point number of a MUSIC spectrum to acquire a virtual circular antenna array; transforming a feature vector of a noise subspace of the MUSIC spectrum according to the virtual circular antenna array to acquire a transformed feature vector; and calculating the MUSIC spectrum by using a near-field direction vector of the virtual circular antenna array and the transformed feature vector, and determining the location of the near-field interference source in the distance range according to the calculated MUSIC spectrum. The method provided by the invention can perform positioning on the near-field interference source of the direction finding station, and relieves a problem that accurate positioning cannot be performed on the near-field interference source of the direction finding station in the prior art.

Description

technical field [0001] The invention relates to the field of radio technology, in particular to a method and device for locating near-field interference sources of a high-frequency radio fixed direction-finding station. Background technique [0002] With the rapid development of urbanization, the electromagnetic environment around the high-frequency radio fixed direction-finding station (hereinafter referred to as the direction-finding station) is deteriorating day by day, and there are more and more artificial interference sources in the near field. The near-field interference signal sent by the near-field interference source propagates in the form of ground waves. Although the attenuation of electromagnetic waves is faster when the ground wave propagates, the antenna of the direction-finding station will still receive a strong The energy directly affects the direction finding processing of the weak and small signals by the direction finding station. In addition, when mult...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/04G01S3/74
CPCG01S3/74G01S5/04
Inventor 郭方
Owner 成都星象科技有限公司
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