High-precision rapid radio direction finding method and system

A radio direction finding, high-precision technology, applied in radio wave measurement systems, directional multi-channel systems using radio waves, and direction finders using radio waves, etc. Realize the precise positioning of the reconnaissance target and other problems, and achieve the effect of narrowing the scope
CN113203980APending Publication Date: 2021-08-03北京通广龙电子科技有限公司
6 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京通广龙电子科技有限公司
Publication Date
2021-08-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The embodiment of the invention provides a high-precision rapid radio direction finding method and system. The method combines the advantages of interferometer direction finding and spatial spectrum direction finding, and proposes an interferometer-spatial spectrum direction finding algorithm. According to the interferometer-spatial spectrum direction finding algorithm, the characteristic that the direction finding speed of an interferometer is high is utilized, a result with a large error is obtained through direction finding of the interferometer, then spectrum peak searching is carried out near the angle through the spatial spectrum direction finding algorithm according to the result, an angle measurement result is obtained, and the spectrum peak searching range is greatly narrowed. The algorithm solves the problems of low precision of direction finding by only adopting an interferometer and high complexity and low speed of direction finding by only adopting a spatial spectrum in the prior art. The interferometer-spatial spectrum direction finding algorithm can simultaneously meet the requirements of high direction finding precision, high direction finding speed and low algorithm complexity, and is beneficial to engineering implementation.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to the field of radio technology, and more specifically, to a high-precision fast radio direction finding method and system. Background technique

[0002] The direction finding accuracy of the interferometer direction finding algorithm is usually a few degrees, and the direction finding accuracy is lower. Taking the L-band signal as an example, the target range of the general direction finding accuracy is not greater than 2°. In the process of communication reconnaissance or radar reconnaissance, if the single-station passive positioning method is used to determine the location information of the reconnaissance target, its positioning accuracy mainly depends on the direction-finding accuracy of the reconnaissance target. Low direction finding accuracy will lead to low positioning accuracy of the scouted target, making it impossible to achieve precise positioning of the scouted target.

[0003] Radio direction finding can...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More