image-segmentation

Image Compression using DCT

直接序列扩频通信系统仿真程序，包括伪随机序列产生、扩频、加噪、接收等。(Direct sequence spread spectrum communication system simulation program, including the pseudo-random sequence generator, spread spectrum, plus noise, the receiver and so on.)

matlab 傅里叶变换 图像的傅里叶变换，利用快速傅里叶进行图像的频率分析然后画出图形(Matlab Fourier transform The Fourier transform of the image and of the image by using the fast Fourier frequency analysis and then draw the graphics)

射频方面的资料，里面有详细的M文件，希望对大家有用。（共5个文件）(Radio frequency information, there are detailed paper M, in the hope that useful to everyone. (A total of 5 files))

transmitter receiver for CDMA

数据统计与分析，基于matlab的函数实现，(some data statistical and data analyse in matlab ,)

PSO聚类算法使用的数据是我们归一化后的数据，利用该数据求总的粒子数m,设置聚类数c（c=4,这个可以确定的），随机选择聚类中心并赋值给各个粒子，随机产生粒子的速度；(PSO clustering algorithm using data owned by a data after the data requirements to the total number of particles in m, set the number of clusters c (c = 4, this can be determined), the random selection of cluster centers and assigned to the each particle velocity of the particles, randomly generated )

说明：  矩阵QR分解，采用householder方法。输入矩阵，返回分解参量，QR decomposition(QR decomposition)

ASK调制模型，提倡共享。谢谢大家支持。(ASK modulation model, promoting sharing. Thank you for support. Thank you, Thank you, thank)

说明：  matlab多用户传输仿真，用于UWB中(Matlab multi-user transmission simulation, which for UWB)