huizhiyuan

说明：  实现了一个音频水印，包括嵌入，提取过程等。包括了原文件。(This source code realized an audio watermarking.It includes the embeding and extracting procedure.Also the original file is in it.)

速率方程求解，的详细过程。还有范例,方便一步一步学习(Rate equations, the detailed process. There sample rate equations, the detailed process. There are examples)

this is the program for Digital modulation

梅尔倒谱系数mfcc求法的Matlab代码(Mel cepstral coefficients mfcc Method Matlab code)

ofdm papr simulation

Chat application - real time chat application

This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.

Kmeans classifier program

说明：  本实验主要内容为：学习使用MATLAB电力系统实验箱并进行仿真。(This experiment, says: learning to use MATLAB power system simulation experiment box and.)

deduplication project