PHC

将声音文件在时间轴上分割成几段，分别将段的秩序及某些段内的秩序颠倒，从而实现了对声音文件的加密。首先，先读取一个声音信号，对信号做1024点FFT变换，取完点之后，分成四个向量，四个向量组成一个矩阵，再对每一个向量进行转置，再重新整合，从而就实现了回密的过程。(Sound files on the timeline will be divided into paragraphs, each paragraph of the order and reversed the order of some paragraphs to realize the encryption of sound files. First, the first reading of a voice signal, the signal was 1024 points FFT transform, check after the completion point, divided into four vectors, the four vectors form a matrix, then for each vector transpose, re-integration, which will achieve a return to close the process.)

Matlab的编程指南(下册),常用的Matlab入门教程,比较详细非常好用的哈!(Matlab programming guide, commonly used Matlab Tutorial, detail very easy to use Ha!)

matlab genetic algorithm codes

copula函数的matlab应用，包括经验分布函数、核分布函数，参数的估计和检验。(Matlab application of Copula Functions, including the empirical distribution function, kernel distribution function, estimation and testing parameters.)

PSO algorithm (PSO) standard test function

Capon(In textbook), for DOA

he fi eld of plasmonics has grown dramatically over the past decade, and still continues growing towards new directions enabling new fundamental science and device tech-nologies. Research in this area explores how electromagnetic fi elds can be confi ned over dimensions smaller than the wavelength. It is based on interaction processes between elec-tromagnetic radiation and conduction electrons at metallic interfaces or in small metallic nanostructures.(he fi eld of plasmonics has grown dramatically over the past decade, and still continues growing towards new directions enabling new fundamental science and device tech-nologies. Research in this area explores how electromagnetic fi elds can be confi ned over dimensions smaller than the wavelength. It is based on interaction processes between elec-tromagnetic radiation and conduction electrons at metallic interfaces or in small metallic nanostructures.)

说明：  分数阶傅里叶变换，一维的分数阶傅里叶变换matlab程序(Fractional Fourier transform)

张德丰matlab小波分析源代码，从信号时-频联合分析引入小波变换，将信号的多分辨率分析及Mallat算法作为全书的重点，并在此基础上，进一步阐述了双正交小波多分辨率分析、小波包多分辨率分析、提升小波应用，还讲述了小波分析在奇异性检测、去噪及数据压缩中的应用。(Zhang Defeng Matlab wavelet analysis of the source code from the signal- frequency joint analysis of the introduction of wavelet transform, multi-resolution analysis of the signal and Mallat algorithm as the focus of the book, and on this basis, further elaborated biorthogonal wavelet multi-resolution analysis wavelet packet multi-resolution analysis, the lifting wavelet applications, but also about the application of wavelet analysis in the singularity detection, de-noising and data compression.)

other example of data demodulation