摘要
研究了存在色噪声时认知雷达的自适应检测波形设计问题。推导了检测率、虚警率与发射波形关系的表达式。介于此表达式的复杂性,引入两个渐近准则,即相对熵和散度准则,并在这两个准则下推导了最优检测波形的闭式解。经理论分析和实验仿真得出如下结论:1)两种信息论准则对应的最优波形是一致的;2)最优检测波形与目标、噪声匹配;3)最优检测波形的信噪比同时也达到最优。
The problem of adaptive waveform design for cognitive radar detection in colored noise is considered. The formulation of relation between the false detection probability and transmitted wave- forms is derived. The formulation above is too complex, so two asymptotic criterias, which are named relative entropy and divergence, are used to design the optimum detection waveforms. The theoretical analysis and numerical experiments indicate： 1 ） the waveforms based on the two criteria are identical; 2） the derived waveform ＇matches＇ the target and noise; 3） the signal-to-noise ratio （SNR） of de- rived waveform is also maximum
出处
《电子信息对抗技术》
2013年第5期39-43,58,共6页
Electronic Information Warfare Technology
关键词
认知雷达
自适应检测波形
色噪声
cognitive radar
adaptive waveform design for detection
colored noise
