摘要
针对认知雷达中的波形优化问题,在给定信号模型基础上,分析了两种主要波形设计准则:信噪比准则和互信息准则,并提出了一种新的波形优化准则,简称为联合准则。该准则通过最大化信噪比和互信息之间的差距来达到优化波形的目的。仿真表明,相对于信噪比准则和互信息准则,联合准则可以更好的利用环境信息,其得出的优化波形具有更高的信噪比和互信息。
Aiming at the issue about the waveform optimization of cognitive radar, two major waveform design criterions are analyzed under the given signal model： signal-to-noise-ratio （SNR） criterion and mutual information （MI） criterion. Then a new waveform design criterion called ＇Joint Criterion＇ is proposed. The waveform is improved with the new criterion through the increased gap between the SNR and the MI. Experimental results proved that, compared to the SNR criterion and the MI criterion, the joint criterion could work better with the environment information, and the waveform optimized could improve the SNR and MI.
出处
《电子信息对抗技术》
2014年第1期33-37,共5页
Electronic Information Warfare Technology
