FFT(figure)-time-frequency

一个实现循环卷积、因式分解的参考程序，程序简洁易懂(A realization of cyclic convolution, Factorization reference procedure, the procedure easier to understand)

this code helps u to apply smoothing filter on the image

卷积码编码器的实现，是误码性能分析的一部分(Implementation of convolutional encoder)

说明：  一个比较好的垂直切换算法，提供了两种切换算法，并进行MATLAB算法仿真(A better vertical switching algorithm, provides two switching algorithm, and the MATLAB algorithm simulation)

基于matlab仿真的调制解调算法，对一个输入序列能正确调制和解调并输出相应的波形(arithemtic of modulation and demodulation)

this file is a simulation of simple boost control in z_zource inverter

article in english for subsytem

隐半马尔可夫模型，只要替换原有的参数就能计算。可以用于模式识别，剩余寿命预测等(Half hidden markov model, as long as replacing the original parameters can be calculated. Can be used in pattern recognition, the residual life prediction, etc)

共轭梯度法求多元函数的极值，使用matlab程序即可解答(Conjugate gradient method for the extreme multi-function use matlab program to answer)

matlab code for secondary path identification