系统工程与电子技术 ›› 2019, Vol. 41 ›› Issue (12): 2684-2691.doi: 10.3969/j.issn.1001-506X.2019.12.03

• 电子技术 • 上一篇    下一篇

基于时空频特征融合的距离-速度复合欺骗干扰识别技术研究

杨林, 张翔宇, 李林, 王国宏   

  1. 海军航空大学信息融合研究所, 山东 烟台 264001
  • 出版日期:2019-11-25 发布日期:2019-11-25

Research on range-velocity deception jamming recognition technology based on time-space-frequency feature fusion

YANG Lin, ZHANG Xiangyu, LI Lin, WANG Guohong   

  1. Institute of Information Fusion, Naval Aeronautical University, Yantai 264001, China
  • Online:2019-11-25 Published:2019-11-25

摘要:

针对距离-速度复合欺骗干扰信号形式复杂及识别难度大的特点,提出了一种基于时空频特征融合的距离-速度复合欺骗干扰识别算法。首先,分析真实目标和虚假目标在空域、频域和时域的特征差异;然后,针对真假目标在不同域的特征区别,分别提取回波点迹的空域特征和频域特征;最后,将提取的空域及频域特征在时域进行融合,采用先积累后判别和基于二进制检测两种特征融合方法,利用时空频融合特征对距离-速度复合欺骗干扰进行判决。仿真结果表明,该算法能够对距离-速度复合欺骗干扰进行有效的识别。

关键词: 距离-速度复合欺骗干扰, 时空频特征, 融合, 识别

Abstract:

Aiming at the complex and difficult identification of range-velocity deception jamming signals, a algorithm on recognizing range-velocity deception jamming based on space-time-frequency fusion feature is proposed. Firstly, the difference between the real target and the false target is analyzed in the airspace, frequency domain and time domain. Then, according to the feature  difference between the true and false targets in different domains, the space and frequency domain features of the echo points are extracted respectively. Finally, the extracted space and frequency domain features are fused in the time domain, and the two feature fusion methods: pre-accumulation and binary detection are used to determine the range-velocity deception jamming by using space-time-frequency fusion feature. The simulation results show that the algorithm can effectively identify the range-velocity deception jamming.

Key words: range-velocity deception jamming, time-space-frequency feature, fusion, recognition