利用此代码可以产生信号频谱，并产生相干积累效果-use this code to produce signal pinpu,and it can produce xiang gan jilei xiaoguo

sar图像去噪的几种新的方法，使用matlab实现智能预测控制算法，利用matlab写成的窄带噪声发生。- Several new methods sar image denoising, Use matlab intelligent predictive control algorithm, Using matlab written narrowband noise occurs.