雷达信号侦收自主处理结构分析

Autonomous Signal Processing Structures for Radar Reconnaissance

针对复杂电磁环境下雷达信号侦收问题,分析了认知电子战的概念与特点,从认知侦察的角度探讨了几种信号自主处理结构。在电磁环境态势感知方面探讨了基于动态频谱以及信号流密度的资源调度结构;在信号检测方面分析了基于接收信号质量的并行算法处理结构;在脉内分析方面,提出了基于成分探测法的调制类型自主识别结构;在参数估计方面,提出了基于参数估计可靠性评估的反馈式自主分析结构;在知识库更新方面,分析了基于辐射源威胁等级的信号处理结构。为认知电子战中新型雷达侦察接收机的设计提供借鉴思路。

To solve the problem of radar signal reconnaissance in complex electromagnetic envi- ronment, the concept and properties of cognitive electronic warfare are analyzed. Then several autonomous signal processing structures based on cognitive electronic reconnaissance are dis- cussed. For electromagnetic situation awareness, some resource scheduling structures are stud- ied based on dynamic spectrum and pulse density of signals. For signal detection, a parallel pro- cessing structure based on quality of receiving signal is analyzed. For intra-pulse pulse analy- sis, an autonomous recognition structure based on modulation components analysis is proposed. For parameter estimation, a feedback estimation structure is proposed based on the reliability as- sessment of estimation result. For knowledge base updating, a signal processing structure based on threat level of emitter is discussed. These structures could be applied in the designing of ra- dar reconnaissance receivers in cognitive electronic warfare.