jieyuelichengfa

This will take the DCT of an image Coefficient matrix calculated first and after multiplied with image matrix 4X4.very efficient code.

matlab学习，适合初学者对仿真软件matlab进行系统的学习(matlab study)

功率谱估计是利用有限长的数据估计信号的功率谱，广泛应用于各个领域。功率谱估计主要分为经典谱估计与现代谱估计。常用的经典谱估计方法有周期图法，相关法，周期图的改进法，常用的现代谱估计方法有最大熵谱估计，AR模型，MA模型，ARMA模型。经典谱估计适用于长序列的信号，其主要缺陷是描述功率谱波动的数字特征方差性能差，频率分辨率低，现代谱估计适用于短序列的信号，旨在改善谱估计的分辨率，并将其应用于实际地震资料的谱分析。 (Power spectrum estimation is the use of a finite length data to estimate the power spectrum of the signal, widely used in various fields. Power spectrum estimation is divided into classic and modern spectral estimation spectral estimation. Commonly used methods of classical periodogram spectrum estimation method, the relevant law, the cycle graph Improvement Act, commonly used in modern spectral estimation methods have maximum entropy spectral estimation, AR model, MA model, ARMA model. Classical spectral estimation applied to signal a long sequence, its main drawback is the fluctuation power spectrum describing digital signature variance performance is poor, the frequency resolution is low, modern spectral estimation applied to signal short sequences designed to improve spectral estimation resolution, and The analysis applied to real seismic data spectrum.)

Matlab implementation of image segmentation/edge preserving filtering algorithm

说明：  STBC，经典Alamouti 2X2 空时编码(Alamouti 2X2 STBC)

编的一个可以计算伯努力的一个matlab函数，方面直接用(a function compute bernoulli)

有关于MATLAB的练习题。。。。。。。对学习MATLAB有一定帮助(on MATLAB Exercises. . . . . . . MATLAB learning will definitely help )

潮流计算程序，收敛性能好，迭代次数相对较少，效率高(load flow calculation)

胡广书版数字信号处理matlab代码，维纳滤波器等学习源码(digital signal processing matlab code, Wiener filter and other learning source)

matlab中用小波变换求故障距离的程序，精度高(xiaobo qiu gu zhang juli)