中文说明： 信号维数的估计，添加噪声处理，pwm整流器的建模仿真，music高阶谱分析算法，脉冲响应的相关分析算法并检验，合成孔径雷达（SAR)目标成像仿真。
English Description：
Dimension estimation of signal, add noise, the modeling and simulation of PWM rectifier and music algorithm for high-order spectral analysis, correlation analysis algorithm for impulse response and testing, synthetic aperture radar (SAR) imaging simulation.