中文说明：详细画出了时域和频域的相关图，构成不同频率的调制信号，用于图像处理的独立分量分析，FIR 底通和带通滤波器和IIR 底通和带通滤波器，用MATLAB实现的压缩传感，利用自然梯度算法。
English Description：
With painting out of the time domain and frequency domain correlation diagram, a different frequency modulation signal for image processing of independent component analysis, at the bottom of the fir pass and band-pass filter and IIR bottom pass and band-pass filter, using MATLAB to achieve the compressive sensing, by using the natural gradient algorithm.