watermark小波代码

分别对64QAM和BPSK进行蒙特卡洛仿真，并绘出误码率曲线(BPSK and 64QAM are carried out, MonteCarlo simulation, respectively,and draw the curve of bit error rate)

Matlab编程实现FFT变换及频谱分析的程序代码(Matlab Programming FFT transform and spectral analysis of the program code)

1. this function is for image (width=176, hight=144) only. but you can modify the related value to fit yours. 2. it is used to evaluate the motion vector between the Nth image and N-1th image. 3. it use Three Steps search algorithm. 4. this algorithm finds the closest pixel near the original pixel in three times.(1. This function is for image (width = 176, hight = 144) only. But you can modify the related value to fit yours.2. It is used to evaluate the motion vector between the Nth image and N-1th image.3 . it use Three Steps search algorithm.4. this algorithm finds the closest pixel near the original pixel in three times.)

Lucas_Kanade光流算法产生光流场，用matlab编译(Optical flow algorithm Lucas_Kanade optical flow field generated by the compiler matlab)

一种直接扩频序列的SIMULINK仿真模型 MATLAB6.5及以上环境可完美运行 发射部分和接受部分的频率图波形图均以给出(A direct sequence spread spectrum and above MATLAB6.5 SIMULINK simulation model of the environment can be run perfectly and accepted part of the transmitter frequency waveforms are given in Figure)

利用信源熵和信源信道之间的互信息求得信道容量(Source entropy and the use of source-channel information to achieve interoperability between the channel capacity)

说明：  QAM的一种实现方法，欢迎使用。谢谢分享(An Implementation Method of QAM are welcome to use. Thank you to share)

双绞线串扰仿真模型研究Simulation model of twisted-pair crosstalk(Simulation model of twisted-pair crosstalk)

Principal component analysis (PCA) is a mathematical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of uncorrelated variables called principal components.

本程序为无线通信中ofdm的一个仿真代码，采用qpsk的调制方式，适合初级学生学习。(This program is a simulation code ofdm wireless communications, using qpsk modulation, suitable for primary students.)