独立成分分析算法降低原始数据噪声，处理信号的时频分析，基于chebyshev的水声信号分析，仿真效果非常好，从先验概率中采样，计算权重，基于matlab GUI界面设计,最大似然（ML）准则和最大后验概率（MAP）准则。- Independent component analysis algorithm reduces the raw data noise, When processing a signal frequency analysis, Based chebyshev underwater acoustic signal analysis, Simulation of the effect is very good, Sampling　a priori probability, calculate the weight, Based on matlab GUI interface design, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.