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A Classification Method for Broadband Radar Interference Signals

A technology of interference signal, identification and classification, applied in radio wave measurement systems, instruments, etc., to achieve the effect of solving the problem of simultaneous multi-interference identification

Active Publication Date: 2020-05-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the identification and classification method of the bandwidth radar interference signal provided by the present invention solves the problem of lack of effective detection and comprehensive classification research on the bandwidth radar interference signal in the prior art

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  • A Classification Method for Broadband Radar Interference Signals
  • A Classification Method for Broadband Radar Interference Signals
  • A Classification Method for Broadband Radar Interference Signals

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Embodiment Construction

[0110] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0111] Such as figure 1 As shown, a method for identifying and classifying broadband radar jamming signals includes the following steps:

[0112] S1. Acquiring radar interference signals and processing them to obtain digital video signals;

[0113] S2, subjecting the digital video signal to a short-time Fourier transform to obtain a time-frequency matrix;

[0114] S3. The time-frequency matrix is ​​processed by sorting an...

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Abstract

The invention discloses a method for identifying and classifying broadband radar interference signals, comprising the following steps: S1, acquiring radar interference signals, and processing them to obtain digital video signals; S2, subjecting digital video signals to short-time Fourier transform , to obtain the time-frequency matrix; S3, process the time-frequency matrix by sorting and counting the constant false alarm method, and obtain the constant false alarm detection matrix; S4, calculate the parameters of each interference signal in the constant false alarm detection matrix, and use the parameters of each interference signal The parameters are integrated into a signal parameter matrix to obtain the detection result of the interference signal; S5. Calculate the characteristics of the interference signal according to the detection result of the interference signal; S6. Identify and classify the interference signal according to the characteristics of the interference signal. The invention identifies and classifies nine broadband radar interferences based on the time-frequency signal characteristics of the interference, and has the ability to identify multiple simultaneous interferences (without overlapping in frequency).

Description

technical field [0001] The invention belongs to the technical field of broadband radar, and in particular relates to a method for identifying and classifying interference signals of broadband radar. Background technique [0002] The electromagnetic environment of the modern battlefield is becoming more and more complex. With the emergence of digital radio frequency memory (DRFM) technology, new types of deception jamming against linear frequency modulation (LFM) radar signals emerge in an endless stream. What radars face is no longer a single type of electronic interference, but usually different The interference of different modulation types, even composite interference, generated by the interference source, these interferences are distributed in a wide frequency band, the parameters are flexible and changeable, and the interference patterns are diversified, which poses a serious threat to the radar. Although there have been many studies on a single type of interference ide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/36G01S7/02
CPCG01S7/023G01S7/36
Inventor 张伟刘强王雷雷张顺生曹建蜀
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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