有PMUSIC 校正前和校正后的比较，添加噪声处理，借鉴了主成分分析算法（PCA），匹配追踪和正交匹配追踪，基于chebyshev的水声信号分析，保证准确无误，是学习通信的好帮手，处理信号的时频分析，光纤陀螺输出误差的allan方差分析。- A relatively before correction and after correction PMUSIC, Add noise processing, It draws on principal component analysis algorithm (PCA), Matching Pursuit and orthogonal matching pursuit, Based chebyshev underwater acoustic signal analysis, Ensure accurate communication is learning a good helper, When processing a signal frequency analysis, allan FOG output error variance analysis.