中文说明：用MATLAB实现的压缩传感，利用自然梯度算法，本程序的性能已经超过其他算法，这个有中文注释，看得明白，滤波求和方式实现宽带波束形成，结合PCA的尺度不变特征变换(SIFT)算法。
English Description：
For compressed sensing using MATLAB to achieve, by using the natural gradient algorithm, the performance of the program has more than other algorithms, the Chinese notes, to understand it, filtering and summation way achieve broadband beam formation, combined with PCA scale invariant feature transform (SIFT) algorithm.