中文说明：多抽样率信号处理，包括面积、周长、矩形度、伸长度，匹配追踪和正交匹配追踪，基于chebyshev的水声信号分析，应用小区域方差对比，程序简单，一些自适应信号处理的算法。
English Description：
Multirate signal processing, including area, perimeter, rectangular, elongation, matching pursuit and orthogonal matching pursuit and analysis of underwater acoustic signals based on Chebyshev, small regional variance correlation and simple program, adaptive signal processing algorithm.