k-means

Consider a BPSK and a QPSK system for the following two cases: 1) The probability that the symbol 1 is sent and the probability that the symbol 0 is sent are all the same. 2) The probability that the symbol 1 is sent is two times than the probability that the symbol 0 is sent. Assume that the noise is Gaussian distributed with mean=0 and  2 = 1.

附件程序为去波变换的源代码，matlab程序编写，运行正确且非常实用。(Annex procedures to transform the source code, matlab programming, run right and very practical.)

现代通信系统matlab版随书代码，很好用的(Modern communication system with matlab edition book code )

说明：  声品质中的响度，尖锐度，粗糙度以及起伏度四种声品质参数计算matlab例子编程(he calculation of loudness, sharpness, roughness and undulation in sound quality by MATLAB)

MUSIC方法估计信号方位(MUSIC methods are used to estimate the signal direction)

说明：  神经网络实现PID功能的源程序 用MATLAB直接运行就可以 可作学习用!(PID neural network function in MATLAB source code used to run directly on the study can be used!)

图像处理Matlab源代码，包括二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响。 (Including discrete cosine transform image compression, the use of gray-scale transformation method to enhance image contrast, histogram equalization, analog image by Gauss white noise and salt and pepper noise.)

简单的matlab画标定板程序，用以生成像素级的标定模板，直接打印，避免了其他方法画出标定板产生虚边的问题。(Simple matlab drawing board calibration procedure to generate a pixel-level calibration template, print directly, avoiding the other methods to draw the calibration panels to generate virtual edge issue.)

turbo code can use in communication application with matlab program

simulate the STBC code for mimo system