海军航空工程学院学报2018，Vol.33Issue(1)：106-110,5.DOI:10.7682/j.issn.1673-1522.2018.01.002
运动声呐空时自适应处理中的多普勒影响分析
Doppler Effect Analysis for Modified Space-Time Adaptive Processing in Moving Sonar
摘要
Abstract
In order to apply the space-time adaptive processing(STAP)theory to the underwater environment and improve the performance of reverberation suppression in moving sonar,the influence of Doppler in the on STAP of moving sonar was studied. Firstly, according to the STAP process, the influence of Doppler on the matched filter and the space-time steering vector was found.Then,specifically analyzing pulse width variation of echo and the mismatch of steering vector. The simulation results showed that the change of the echo envelope had little effect on the output signal-to-noise ratio of the matched filter.The correction of the space-time vector could improve the accuracy of the estimation of target direction and improve the reverberation suppression ability.关键词
空时自适应处理/多普勒效应/包络/修正项/混响Key words
space-time adaptive processing/Doppler effect/envelope/correction item/reverberation分类
信息技术与安全科学引用本文复制引用
李娜,施博,郝程鹏..运动声呐空时自适应处理中的多普勒影响分析[J].海军航空工程学院学报,2018,33(1):106-110,5.基金项目
国家自然基金资助项目(61571434) （61571434）
中科院声学所青年英才计划基金资助项目(QNYC201623) （QNYC201623）
