transmitter_receiver

4阶半带滤波器的matlab设计，改程序采用了凯撒窗函数的设计方法(4 jie halfband)

该程序是一个较简短的程序，主要读取磁共振fid信号，显示波形(The program is a relatively short procedure, the main reading magnetic resonance fid signal waveform display)

经验模式分解改进代码，基于经验模式分解的一种改进 经验模式分解 matlab(Empirical Mode Decomposition improve code)

MATLAB中，卷积码、QPSK通过单径瑞利衰落信道的仿真，分析不同的多普勒和不同的交织块长对性能的影响。(MATLAB, the convolutional code, QPSK through a single path Rayleigh fading channel simulation, analysis of different Doppler interleaving block length and different impact on performance.)

本程序设计了一个最佳升余弦滚降系统，包括输入输出信号的波形、功率谱、眼图和系统误码率曲线(This procedure is designed or one of the best cosine roll-off system, including input and output signal waveform, power spectrum, eye diagram and BER curves)

This program in Matlab code, plot the transfer function versus frequency for a seven layer filter by using the FDTD

在非线性光纤光学的必须仿真方程，包括spm，xpm以及损耗的薛定谔方程。其中有10多个小仿真程序，以及其中用到的函数。(Must the simulation equation in nonlinear fiber optics, including the SPM, XPM and depletion of the schrodinger equation.There are more than 10 small simulation program, and the use of the function.)

基于小波分析和主成分分析的人脸识别研究随着社会的发展，社会各个方面对快速有效的身份验证的要求日益迫切。由 于生物特征是人的内在属性，具有很强的自身稳定性和个体差异性，因此是身份 验证的理想依据。其中利用人脸特征又是最自然直接的手段，相比其他生物特征， 它具有直接、友好、方便的特点，易于为用户接受。从而，人脸识别吸引了越来 越多来自计算机视觉和信号处理等领域的关注，成为模式识别、图像处理等学科 的研究热点。(Based on wavelet analysis and principal component analysis of the Face Recognition With the social development of all aspects of society in his capacity as quickly and efficiently verify the requirements of increasingly urgent. Biological characteristics as a result of the inherent human attribute, has a strong individual differences in their stability and, therefore, is an ideal basis for authentication. The use of facial features which is the most natural means of direct, compared with other biological characteristics, it has a direct, friendly, convenient and easy for users to accept. Thus, face recognition has attracted more and more from the computer vision and signal processing and other areas of concern, as a pattern recognition, image processing, such as the research subjects.)

matlab代码，不利用模糊工具箱的情况下编写的模糊神经网络程序。(Matlab code, not fuzzy neural network program prepared in case of fuzzy toolbox.)

本程序是对iditfft算法的仿真，即对快速傅立叶变换的仿真。(This program is iditfft simulation algorithm, namely, the fast Fourier transform simulation.)