基于航迹速度修正频谱分析的防空雷达虚假目标判别方法

基金项目:

国家部委基金资助课题

False Target Discrimination of Air Surveillance Radar Based on Track Velocity Modification and Frequency Spectrum Analysis

(Radar Research Institute of Air Force Equipment Academy, Beijing 100085, China)

摘要: 该文研究了防空雷达虚假目标判别问题，针对航迹欺骗干扰、杂波剩余假航迹干扰等能够形成航迹的虚假目标，从回波频谱分析角度着手，结合航迹速度修正处理，提出了一种全新的判别方法。该方法将虚假目标判别归结为二元假设检验问题，推导了以多普勒频率差为统计量的似然比判别表达式，给出了判别门限的计算公式，并基于实际防空雷达数据验证了方法的有效性，为解决防空雷达目标真伪判别提供了有效的技术途径。
- 虚假目标判别 /
- 防空雷达 /
- 频谱分析
Abstract: In this paper, the false target discrimination strategy of air surveillance radar is studied. Aiming to distinguish false target which can form certain track such as clutter residual false track or false track deception, a novel method based on track velocity modification and frequency spectrum analysis is proposed here, which can provide a great potential approach for solving the false target discrimination puzzle. The discrimination issue is concluded as a problem of bivariate test of hypothesis, and the likelihood ratio formula is deduced with the way to calculate the judge threshold also proposed. The validity of the novel method is verified by experimental results of real surveillance radar data.
- False target discrimination /
- Air surveillance radar /
- Frequency spectrum analysis