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水下弱信号的检测和分类是水声信号处理领域中的难题。
Detection and classification of weak underwater signals are difficult problems in processing acoustic signals.
基于非线性动力学理论的水声信号相空间处理，是水声信号处理的一种新途径。
Signal processing in phase space based on nonlinear dynamics theory is a new method for underwater acoustic signal processing.
海洋混响是水声信号目标检测的主要干扰之一，克服混响干扰一直是水声信号处理的一个重要课题。
As oceanic reverberation is the main interference to acoustic object detection, suppressing the chaos by signal processing is an important task.
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