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国外编写的一个QPSK仿真程序，给出了调制解调及误码分析(Foreign QPSK simulation program written in a given modulation and demodulation and error analysis)

Variable declarations in eval() must introduce delete-able vars.

说明：  图像滤波实现中值滤波，自适应，对比结果，图像使用(Image filtering, median filtering, adaptive, comparative results, medical image use)

Heat maps with numeric values overlayed

control system calculation of no of poles

是改进平方根法和平方根法的matlab小程序可以学习用的(Is to improve the square root law and the square root of the matlab can learn to use a small program)

DESCRIPTION: This Matlab algorithm performs many tasks associated with power system analysis. First, it has the ability to perform both fully coupled and dc power flow analysis. Second, it has the ability to create measurements (with user-defined error) to be used as input for state estimation. Third, it has the ability to perform state estimation - allowing the user to examine how the placement of measurement devices as well as magnitude of distibution of measurement error affect the discrepency between power flow and state estimation results. In essence, it provides the user with a complete package for the study of both power flow and state estimation in n-bus power systems.

说明：  维纳滤波器的Matlab实现：加噪信号经过滤波器后，恢复原始信号。(Wiener filter by Matlab: plus noise signal through the filter, to restore the original signal.)

语音信号的维纳滤波，频域实现和时域实现方法(Wiener filtering of speech signals, frequency domain implementation and time domain implementation)

QAM QPSK的MATLAB 仿真程序，对刚开始接触MATLAB的学者很有帮助(QAM qpsk)