重庆邮电大学学报（自然科学版）2016，Vol.28Issue(6)：797-803,7.DOI:10.3979/j.issn.1673-825X.2016.06.008
干扰条件下基于互信息量准则的弹载雷达波形优化
Waveform optimization for the missile-borne Radar under jamming using mutual information criterion
摘要
Abstract
The transmitting waveform design of missile-borne radar plays an important role on missile guidance.To solve the problem of low target-detection performance when the missile-borne is affected by noise,clutter and jamming in the complex electromagnetic environment,a new waveform design algorithm based on the mutual information(MI)criterion is proposed.This algorithm maximizes the mutual information between the target ensemble and the received signal using La-grangian multiplier method,then it is simplified by using Taylor series.The Simulation has compared the mutual informa-tion of optimized and original conditions under different clutters and blanket jamming with different power constraints.Simu-lation results indicate that,the optimized condition doubles the mutual information when compared to the original condition with 1 00watt average power constraints.The optimized waveform could lower the effect of jamming and clutter by redistribu-ting the signal energy in the frequency domain,thus the received echoes contain more information of the target.关键词
弹载雷达/压制干扰/波形优化/互信息量(MI)Key words
missile-borne radar/blanket jamming/waveform optimization/mutual information分类
信息技术与安全科学引用本文复制引用
蒋孟燃,李伟,王兴亮,兰星,翟庆林..干扰条件下基于互信息量准则的弹载雷达波形优化[J].重庆邮电大学学报（自然科学版）,2016,28(6):797-803,7.基金项目
国家自然科学基金（61302153）；航空基金（20140196003）；航天科技创新基金（CASC020302）Foundation ItemsThe National Natural Science Foundation of China（61302153）；The Aeronautical Science Foundation of China （20140196003）；The Aerospace Science and Technology Innovation Foundation of Shanghai （）
