K-modes

PN中的GOLD码生成源程序（matlab）(GOLD in the PN code to generate source code (matlab))

this code use for color segmentation in image

《射频电路设计——理论与应用》一书课后习题第四章Matlab程序代码("RF circuit design-- Theory and Application," a book chapter IV Swimming Exercises Matlab code)

ofdm系统qpsk调制、awgn信道下的仿真，对于ofdm信号有全面的认知(qpsk modulation ofdm systems, simulation awgn channel under the ofdm signal for a comprehensive awareness)

运用wind matlab 进行量化投资, 例子包括 期货 期权 股票 债券等 (some samples for quantitative investing using matlab)

％ 文件名：randlsbget.m ％ 程序员:余波 ％ 编写时间:2007.6.25 ％ 函数功能: 本函数将完成提取隐秘于上的秘密信息 ％ 输入格式举例:result=( scover.jpg ,56, secret.txt ,2001) ％ 参数说明: ％ output是信息隐藏后的图象 ％ len_total是秘密信息的长度 ％ goalfile是提取出的秘密信息文件 ％ key是随机间隔函数的密钥 ％ result是提取的信息 function result=randlsbget(output,len_total,goalfile,key) ste_cover=imread(output) ste_cover=double(ste_cover) ％ 判断嵌入信息量是否过大 [m,n]=size(ste_cover) frr=fopen(goalfile, a ) ％ p作为信息嵌入位计数器将信息序列写回文本文件 p=1 ％ 调用随机间隔函数选取像素点 [row,col]=randinterval(ste_cover,len_toal,key) for i=:len_toal if bitand(ste_cover(row(i),col(i)),1)==1 fwrite(frr,1, bit1 ) result(p,1) else fwrite(frr,0, bit1 ) result(p,1)=0 end if p==len_total break end p=p+1 end fclose(frr) ()

《数字信号处理教程——MATLAB释义与实现》（第2版）(" Digital Signal Processing Tutorial- MATLAB Interpretation and Implementation" (2))

采用Matlab C++数学库对稀疏矩阵的操作(======================================================================== CONSOLE APPLICATION : sparseArrayCreate ======================================================================== AppWizard has created this sparseArrayCreate application for you. This file contains a summary of what you will find in each of the files that make up your sparseArrayCreate application. sparseArrayCreate.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. sparseArrayCreate.cpp This is the main application source file. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named sparseArrayCreate.pch and a precompiled types file named StdAfx.obj. )

本程序主要用于DDS算法的验证,可以生成正弦波，占空比可调的方波，三角波；其中频率控制字可调，生成波形的频率也可调。(This procedure is mainly used for verification DDS algorithm, can generate sine wave with adjustable duty cycle square wave, triangle wave including adjustable frequency control word to generate adjustable frequency waveform.)

外文资料里面的源代码，验证可用，小波包分析提取振动信号中的特征频率。( Foreign materials inside the source code, Verification is available, Wavelet packet analysis to extract vibration signal characteristic frequency.)