中文说明：部分实现了追踪测速迭代松弛算法，基于chebyshev的水声信号分析，加入重复控制，鲁棒性好，性能优越，课程设计时编写的matlab程序代码，详细画出了时域和频域的相关图。
English Description：
Part of the implementation of the tracking velocimetry iterative relaxation algorithm, based on Chebyshev underwater acoustic signal analysis, repetitive control is added, good robustness, superior performance, curriculum design prepared by the matlab code, detailed paintings the time-domain and frequency-domain correlation diagram.