声纳
混响
海洋哺乳动物与声纳
波束赋形
连贯性(哲学赌博策略)
声学
Ping(视频游戏)
合成孔径声纳
计算机科学
声纳信号处理
信号处理
工程类
人工智能
电信
物理
雷达
量子力学
计算机安全
作者
Jiayu Ren,Rodney G. Vaughan
出处
期刊:IEEE Journal of Oceanic Engineering
[Institute of Electrical and Electronics Engineers]
日期:2010-10-01
卷期号:35 (4): 887-894
被引量:7
标识
DOI:10.1109/joe.2010.2079610
摘要
Much signal processing in sonar takes advantage of ping-to-ping bottom reverberation coherence. However, bottom reverberation coherence is degraded owing to environment variations including unknown sonar sensor motions from platform instability. In this paper, an algorithm is described to compensate small-scale motion of high-frequency sonar sensors which is for enhancing ping-to-ping bottom reverberation coherence. The algorithm is based on sonar modeling of bottom reverberation. It comprises three steps: template selection, footprint matching, and phase rotation. Simulations using the sonar modeling indicate that the algorithm can correct for sensor motion of up to several wavelengths for two pings using the data from only one element of the sonar receiver. The algorithm achieves a significant coherence improvement over a large region ensonified by the sonar beam.
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