研究空时自适应研究的人可以参考，很好的入门材料-Adaptive Radar Signal Processing

This a demo program for the paper J. Tian and L. Chen, "Image noise estimation using a variation-adaptive evolutionary approach," IEEE Signal Processing Letters, Vol. 19, No. 7, Jul. 2012, pp. 395-398.- This is a demo program for the paper

Digital signal processing (DSP) algorithms exhibit an increasing need for the e#cient implementation of complex arithmetic operations. The computation of trigonometric functions, coordinate transformations or rotations of complex valued phasors