【摘要】 合成孔径声纳(SAS)中信号传播较合成孔径雷达(SAR)需要更长的时间,往往“停一走一停”近似不再有效,测绘带内不同距离回波到达基阵时,基阵存在不可忽略的运动;同时测距、测速模糊矛盾的问题较SAR更为突出。本文针对这一情况,在原有多子阵逐点成像算法的基础上,研究了基阵的运动误差,提出了多子阵合成孔径声纳带运动补偿的逐点成像算法。更多还原

【Abstract】 In the Synthetic Aperture Sonar, the receiver has more time to travel during signal transmission by compared with Synthetic Aperture Radar. The "stop-hop-stop" approximation is no longer valid. The receiver has unavoidable movement, when echoes get receiver from different distances. At the same time, the contradiction of the unambiguous range and along-trade sampling requirements is more outstanding. In order to overcome the problem, based on the former Multi-aperture imaging Algorithm, the paper studies the array motion errors and proposes Multi-aperture Synthetic Aperture Sonar Imaging Algorithm.更多还原