FFT_analysis

matlab 编写的FIR iir滤波器源程序，供初学者使用数字信号处理的下载。(matlab prepared FIR iir filter source code for beginners to use digital signal processing download.)

此源代码是基于COM和ADO的数据库编程，用到了VC++6.0和ACCE(This source code is based on COM and ADO database programming, using the VC++ 6.0 and ACCE)

模拟平面波和球面波发生代码，在后面可进行衍射干涉的各种模拟。(Simulation of a plane wave and spherical wave code behind a variety of simulated diffraction interference.)

应用熵检测法实现CW脉冲信号的检测，并画出ROC曲线，判断接收机性能。(Applying entropy detection method to realize CW pulse signal detection, and draw ROC curve to judge the receiver performance.)

说明：  独立成分分析算法降低原始数据噪声，并提取特征值，非常有用得数据去噪程序。(Independent component analysis algorithm reduces the raw data noise, and extract characteristic value, is more helpful data denoising procedure.)

this is matlab program for pi/4 qpsk modulation

DG Placement optimization in 33-bus and 69-bus distribution power systems using Imperialistic Competition optimization algorithm.

MATLAB环境下 三相全桥电力电子仿真电路(matlab three phase whole bridge)

傅里叶变换，系统信号转换有关，频域时域变换问题(Fourier transform, the system signal conversion is related to the frequency domain the domain transform)

some useful matlab code for data hiding for example psnrcompare wavelet transform arnold transform and ...