OFDM_matlab

用平面波展开法计算二维光子晶体带隙的程序(With the plane wave expansion method for calculation of 2-d photonic crystal program)

此程序是对齿轮信号进行模拟分析，并通过小波变换进行信号重构(This procedure is to simulate the gear signal analysis and signal reconstruction by wavelet transform)

离散时间信号基本运算，包括序列相加相减、序列位移、序列翻转、序列周期延拓(Discrete-time signal basic operations, including the sequence of addition and subtraction, shift sequence, sequence inversion sequence cycle extension)

实现双三次插值图像缩放算法，修改k值，即可修改放大倍数或缩小倍数！(To achieve bi-cubic interpolation algorithm for image scaling, modified k values can be modified to enlarge or shrink the multiples of multiples!)

只要输入自己需要的数据就可实现PSO优化bp的程序(Just enter the data they need can be achieved PSO optimization procedures bp)

dtw的matlab算法，识别率达到100 。可直接使用或转成c语言代码，下到下位机运行。(dtw' s matlab algorithm to achieve 100 recognition rate. Can be used directly or converted into c language code, run down to the lower machine.)

说明：  小波分析的应用是与小波分析的理论研究紧密地结合在一起地。现在，它已经在科技信息产业领域取得了令人瞩目的成就。(Application of wavelet analysis and wavelet analysis theory closely together to. Now, it has been in the field of information technology has made remarkable achievements.)

This Matlab function implements the SIFT algorithm for pitch extraction function [p] = sift (x, samp_rate) where p is a vector which holds the pitch frequency values in Hz at every 10 msec.

this is codes for FATI and FITA fuzzy system models

matlab主要函数全部包括，及其实用，值得拥有。(the matlab function including all its practical worth having.)