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matlab实现的调制以及解调过程，包括4QAM，8PSK，16QAM，64QAM(achieve Matlab modulation and demodulation of the process, including 4QAM, 8PSK, 16QAM, 64QAM)

说明：  用精确线搜索的共轭梯度法，求问题的极小点(Using the conjugate gradient method of exact line search to find the minimum point of the problem)

this example exchanges the NRZ code to the MANCHESTER code with moore output

说明：  here i have attached the fdtd 3 d

彩色图像的局部直方图均衡化程序，可一定程度上增强图像的对比度(Local histogram equalization process a color image, the image contrast can be enhanced to some extent,)

this file desribe the propagation of mode in few mode fiber

说明：  简单的BP神经网络分类，包括数据，预处理的程序如果需要可以联系我(Simple BP neural network classification)

Multipl input multiol output modulation algorithm implemantation

本程序使用MATLAB实现了FSK的调制过程，还实现了其对应的解调(This procedure achieved using the MATLAB process of FSK modulation, but also the realization of the corresponding demodulator)

根据姚天任 现代数字信号处理 第四章，那个课后作业题编的，搞了好久，结果很理想，如果能搞成，1024点，结果会十分稳定。(music method)