power-system-signal

音乐闹钟的实现，定时到了以后音乐提醒，即音乐闹钟(the music clock)

GSCALE Scales the intensity of the input image. G = GSCALE(F, full8 ) scales the intensities of F to the full 8-bit intensity range [0, 255]. This is the default if there is only one input argument. G = GSCALE(F, full16 ) scales the intensities of F to the full 16-bit intensity range [0, 65535]. G = GSCALE(F, minmax , LOW, HIGH) scales the intensities of F to the range [LOW, HIGH]. These values must be provided, and they must be in the range [0, 1], independently of the class of the input. GSCALE performs any necessary scaling. If the input is of class double, and its values are not in the range [0, 1], then GSCALE scales it to this range before processing. The class of the output is the same as the class of the input. Copyright 2002-2004 R. C. Gonzalez, R. E. Woods, & S. L. Eddins Digital Image Processing Using MATLAB, Prentice-Hall, 2004 $Revision: 1.5 $ $Date: 2003/11/21 14:36:09 $

基于卡尔曼滤波时间同步算法,可以显示同步前和同步后的差别(Based on kalman Filter time synchronation)

this script simulate the cooperative communication in order to get the number of packets suuccessfully transmitted by direct link and relay link

一个用于小波去噪的matlab程序，用matlabgui编写，去噪函数的核心是阈值去噪(wavlet denoising gui)

相机标定的工具箱，对于研究标定的人很有帮助，相当好用，欢迎下载。(Camera Calibration Toolbox for calibration studies were very helpful, very easy to use, please download.)

说明：  模式识别工具包，matlab编写，非常好用哦。(Pattern Recognition Toolkit, matlab prepared, very easy to use, oh.)

本程序适用于matlab中，读取两幅图像，求取两幅图像的联合熵 程序非常易懂，适合初学者使用，可以用里面的图片进行测试，注意对程序读取图片名进行更改。(Read the two images and calculate the joint entropy of the two images.)

直方图均衡：原始图的直方图变换为均匀分布的形式，这样就增加了象素灰度值的动态范围从而达到增强对比度的效果 中值滤波：中值滤波属于非线性平滑滤波器，它可以消除噪声又能保护图象的细节(histogram equalization : the original plan to transform the histogram in the form of uniform distribution. This will increase the value of the pixel gray areas so as to achieve dynamic contrast enhanced effect of filtering : Median filter is nonlinear smoothing filter, it can eliminate noise while preserving image details)

he m-file helps you o understand the generatio,transmission and reception of an ofdm signal, and also shows the effect of the channel noise and the HPA on the ofdm signal.