zero-watermarking

y3k=fft(u,(m+n-2)/4) i=1:(m+n-2)/4 subplot(5,2,9) stem(i,u) title( 滤波后上采样 ) k=1:(m+n-2)/4 subplot(5,2,10) stem(k,y3k) title( 上采样频谱 ) xlabel( k ) ylabel( y3k ) (y3k = fft (u, (m+ n-2)/4) i = 1: (m+ n-2)/4 subplot (5,2,9) stem (i, u) title (after filtering the sample) k = 1: (m+ n-2)/4 subplot (5,2,10) stem (k, y3k) title (on the sample spectrum) xlabel (k) ylabel (y3k))

离散傅立叶变换已成为数字信号处理的重要工具，然而，它的计算量较大，运算时间长，在某种程度上却限制了它的使用范围。快速算法大大提高了运算速度，在某些应用场合已能作到实时处理，并且开始应用于控制系统。(Discrete Fourier Transform digital signal processing has become an important tool, however, the calculation of its larger, long computing time, but in a way limits the scope of its use. Fast Algorithm for greatly enhanced speed of operation, in some applications has been able to do real-time processing and control system began to be used.)

gaussina lOW PASS FILTER

适合初学者，简单的回归问题，利用matlab知识分析问题(For beginners, simple regression problems, the use of matlab knowledge analysis question)

Matlab Apriori Assosication Rule mining

pls算法的一个小例子,亲测可用,是入门的必选(pls a small example of the algorithm, pro-test available)

这是一篇关于特征语音补偿方法的论文，想了解这方面知识的可以看看(This is a paper about the characteristics of speech compensation method, want to know about this aspect of knowledge can have a look)

这是简易的FSK信号调制，把文件放入matlab的文件库中，通过在matlab的命令窗口直接调用功能函数并运行，可以直接看到仿真结果。(This is a simple FSK signal modulation, the file into Matlab file library, call function directly in the Matlab command window and run the simulation results can be seen directly.)

MIMO技术详细技术 比较经典的讲解，比较经典(MIMO technology to explain detailed technical more classic)

Gauss_generator利用参数（多普勒频移、系数、相移）生成确定的实高斯过程.m gaussian确定离散多普勒频移、系数、相移的程序.m Rice_generator在瑞利过程的基础上考虑视距分量，生成莱斯过程.m Suzuki_generator成确定型Suzuki过程.m Rayleigh_Doppler_multiPath.m Rayleigh_Doppler_singlePath.m rayleigh_Filter_Model.m pdf_cdf_gen.m test_rayleigh_pdf.m rayleigh.m(Gauss_generator use parameters (Doppler frequency shift coefficient, phase shift) formation to determine the actual Gaussian process. m Gaussian identify discrete Doppler frequency shift coefficient, Phase-shifting procedures. m Rice_generator in Rayleigh process on the basis of weight to consider the horizon, Rice production process. m-Suzuki_generator identified as Suzuki process. m Ra yleigh_Doppler_multiPath.m Rayleigh_Doppl er_singlePath.m rayleigh_Filter_Model.m pd f_cdf_gen.m test_rayleigh_pdf.m rayleigh.m)