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matlab实现傅里叶变换和傅立叶反变换(Implement fft and ifft)

matlab 源码,基于小波变换的语音信息隐藏的实现,对原始语音信息和水印信息都经过三层小波分解处理后,将水印信息的低频信号嵌入原始语音信号的部分高频信号部分实现隐藏.源代码不仅给出隐藏过程,并且给出的在随机噪声,重采样,信息压缩情况下的抗攻击特性.源代码清晰有注释(matlab source code, based on wavelet transform voice messages hidden realize, the original voice information and watermark information after a three-treatment, after wavelet decomposition, the watermark information embedded in the low-frequency signals of the original speech signal realize some hidden part of high-frequency signals. source code is given not only to hide the process, and given in random noise, resampling, compression of information in case of anti-attack features. source code has a clear Notes)

G728 Matlab decoder, code 16 LDECP

时域处理算法，本源码是关于时域预处理放面的内容，包含简易的算法(Time domain processing algorithms, the source is placed on the surface pretreatment time-domain content, including a simple algorithm)

matlab 程序 ica 独立成分分析主函数（其中没有编制子函数代码）(The main function matlab ica independent component analysis (not one of them to compile a function code) )

都是关于空间普估计算法，其中有解相干和非相干算法以及它们之间的对比( the spatial spectrum estimation)

基于m序列的DS-CDMA通信系统仿真的调制解调模型(M-sequence-based DS-CDMA communication system simulation model of modulation and demodulation)

基于maglab/simulink平台设计的利用duffing振子检测微弱正弦信号，非常好的一个源程序，自己亲自调试，运行在matlab2012b上没有问题，仿真步长0.01s,采用RK四阶算法。若有问题，欢迎指教(Based maglab/simulink platform using duffing detect weak sinusoidal oscillator signal, a very good source, personally commissioning, operation without problems on matlab2012b, simulation step 0.01s, using the fourth-order RK algorithm. If questions, please advise)

对混沌时间学列但不预测及多步预测的输入信号信号归一化处理(Studies of chaotic time series prediction and multi-step, but not predictable input signal signal normalized)

Matlab编程学习课件,非常好的资料赶紧下载(Matlab programming learning courseware, very good information quickly download)