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利用DFT法求周期信号的功率谱,实现离散傅立叶变换DFT,最后分析得到频谱幅度.(DFT method using the power spectrum of periodic signals seeking to achieve the Discrete Fourier Transform DFT, the final analysis, amplitude spectrum obtained)

本程序是matlab编程，采用了N-R算法中的极坐标法(This program is matlab programming, NR algorithm using polar coordinates)

TH-ppm模板.计算PPM—TH—UMB相关掩模(TH-PPM mask)

用MATLAB仿真瑞利信道下的BPSK系统的误码率 和信噪比的关系曲线。(Using MATLAB simulation under Rayleigh channel BER BPSK system and the relationship between the curves of signal to noise ratio.)

选择使用matlab对图像进行四叉树分解，并且显示稀疏矩阵的结果。(Choose to use the matlab quadtree decomposition of the image, and sparse matrix results.)

this program treat image processing and segmentation methods and can help for functions which concern segmentation, hidden markov segmentation

AIC和MDL标准和使用来源的估计数从而得出相应的估计频谱MUSIC,使用信号频率估计仿真MUSIC方法( MUSIC method using the signal frequency estimation simulation: AIC and MDL criteria and using the estimated number of sources thus draw the corresponding estimate frequency spectrum MUSIC)

说明：  用matlab编写的fft快速傅立叶变换及逆变换函数,其中flip1是供ditfft函数调用的倒叙子函数。(using Matlab fft prepared by the fast Fourier transform and inverse transform function, which is flip1 ditfft function call for the Warrior unreachable.)

说明：  滤波处理，对信号进行滤波处理，提取信号的故障特征频率(Filtering, filtering the signal, extract the fault characteristic frequency of the signal)

hi its useful for matlab developers