A Jamming Identification Method Against Radar Deception Based on Bispectrum Analysis and Fractal Dimension

doi:10.7652/xjtuxb201612020

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A Jamming Identification Method Against Radar Deception Based on Bispectrum Analysis and Fractal Dimension

更新时间：2025-07-09

- A Jamming Identification Method Against Radar Deception Based on Bispectrum Analysis and Fractal Dimension
- Vol. 50, Issue 12, Pages: 128-135(2016)
- 作者机构：
  
  空军工程大学防空反导学院,西安,710051
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201612020
  CLC： TN974
- Online First：10 December 2016，
  
  Published：2016
- 稿件说明：
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A Jamming Identification Method Against Radar Deception Based on Bispectrum Analysis and Fractal Dimension[J]. 2016, 50(12): 128-135.
DOI：

A Jamming Identification Method Against Radar Deception Based on Bispectrum Analysis and Fractal Dimension[J]. 2016, 50(12): 128-135. DOI： 10.7652/xjtuxb201612020.

摘要

为解决频谱弥散干扰(SMSP)和切片组合干扰(C&I)2种干扰类型的识别问题

提出了一种利用双谱分析和分形维数的干扰识别方法。首先对零中频处理后雷达接收信号进行双谱分析

得到接收信号的三维双谱信息; 然后通过降维方法把三维信息变换成二维特征曲线

以减小干扰识别的计算量; 最后提取二维曲线的盒维数和信息维数2个特征参数

通过支持向量机对干扰识别率进行检验。仿真结果表明:在一定的噪声背景下

该识别方法能够较为稳定地识别不同干扰形式; 在信噪比为0 dB的条件下

干扰的识别成功率能够达到88%以上

证明了干扰识别方法的有效性。

Abstract

A novel jammimg identification method based on bispectrum analysis and fractal dimension is proposed to solve the recognition problem of smeared spectrum(SMSP)and chopping and interleaving(C&I)interferences. Firstly

three-dimensional bispectrum information is obtained by performing bispectrum analysis on radar echoes. Then a two-dimensional feature curve is generated to reduce the calculation cost by using a dimension reducing method. Finally

characteristic parameters of the box dimension and the information dimension are extracted from the two-dimensional feature curve and used as the sorting characteristics. In addition

a support vector machine(SVM)method is used to test the interference recognition rate. Simulation results show that the proposed method is stable and its identification rate is over 88% when the signal-to-noise ratio is 0 dB

verifying the effectiveness of the proposed method.

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references

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