nice

本帖调用自编函数（grating）绘制光栅条纹图像，通过例子讲解水平、竖直、环状和辐射状光栅条纹图像的绘制，用黑白和彩色显示效果给大家视觉上的震撼。调用自编函数时，可以通过成对出现的参数控制条纹的方向、颜色、周期、相位角等。(This post calls self-function (grating) draw grating image, by way of example to explain the horizontal, vertical, circular and radial grating image rendering, with monochrome and color display give you visual shock. Self function call, the parameters can be controlled by pairs stripe orientation, color, period, phase angle.)

dc-dc buck电路，仿真效果较好，偏差控制的很小，pi效果不错(DC-DC buck circuit, simulation effect is good, deviation control is very small, PI effect is good.)

一种基于PN训练序列的OFDM时频同步的新算法。通过构造倒序结构的同步训练序列，获得了较好的定时性能。(PN training sequence based on the OFDM time-frequency synchronization of the new algorithm. By constructing a reverse structure synchronization training sequence, to obtain a better performance from time to time.)

运用matlab进行快速ica变换，对信号进行预处理(Ica using matlab rapid transformation, the signal preprocessing)

LDPC编译码算法，研究编码效率、帧长与吞吐量的三维关系，且添加了无编码是的比较关系图。(LDPC encoding and decoding algorithms, the study coding efficiency, the three-dimensional relationship of the frame size and throughput, and add non-coding comparison diagram.)

Good refrence to learn statics in matlab

基于主成分分析的PCA算法，利用进行各类图像降维，达到精简计算过程的目的。(PCA based on principal component analysis algorithm for various images using dimensionality reduction to achieve the purpose of streamlining the calculation.)

基于结构相似性的图像质量评价算法SSIM(Image quality assessment metric (Structural similarity index))

sharppart function for wavelet analysis

压缩包里面有四个程序：在matlab中对图像进行过滤操作和频率操作，和函数的变换(Compressed inside four programs: the transformation of image filtering operation and the frequency of operation, and function in matlab)