chap_11

Fast sparse matrix vector product

基于Ma tlab双闭环直流调速系统的仿真 陈中 李先锋(Based Ma tlab Double Loop DC Speed System Li Xianfeng Chen)

电力电子、电机控制系统的建模与仿真-洪乃刚编著，机械工业出版社。(Modeling and Simulation of power electronics, motor control system)

New Segmentation techniques

QAM 调制完整代码，MATLAB实现，通俗易懂，适合初学者学习参考。(QAM Modem Demo)

this util for voice analize

说明：  混沌工具 function x=logistic(n,level,a,x0)(function x=logistic(n,level,a,x0))

产生一个余弦波，为通信系统提供一个余弦载波(To generate a cosine wave, as a cosine-carrier communication system)

本程序将时域数据转换为频域（功率谱密度），方便数据的处理和分析。(The program time-domain data is converted to the frequency domain (power spectral density), to facilitate the processing and analysis of data.)

基于canny边缘检测，模糊c均值聚类的图像分割(Canny edge detection based on fuzzy c-means clustering image segmentation)