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本文在分析移动无线信道衰落特性的基础上,阐述了OFDM系统的基本原理,主要研究了OFDM通信系统中的基于导频符号的信道估计问题,分析了几种经典的信道估计算法以及相关的关键技术环节。 在此基础上介绍了OFDM技术在现实中的一个应用——WLAN IEEE802.11a系统模型,利用Matlab仿真软件完成OFDM系统信号生成、噪声生成、导频插入、循环前缀、调制、解调等部分的设计,最后结合计算机仿真对系统关键技术(导频、循环前缀、估计算法)的有效性和可行性进行了全面的分析与比较。适合matlab研究(Based on the analysis of mobile channel fading characteristics based on the OFDM system on the basic principles of research in the OFDM communication system of the pilot symbols based on channel estimation problem, an analysis of several classical channel estimation algorithm and the associated key technical links. On this basis, introduced OFDM technology in a practical application- WLAN IEEE802.11a system model, using Matlab simulation software to complete OFDM signal generation, noise generation, pilot insertion, cyclic prefix, modulation, demodulation and other parts of the design, the final combination of computer simulation of the system of key technologies (pilots, cyclic prefix, it is estimated that algorithm) the effectiveness and feasibility of a comprehensive analysis and comparison. Suitable for research matlab)

包含优化类的几个简单示例程序，基于人工神经网络的常用数字信号调制，FMCW调频连续波雷达的测距测角，分析了该信号的时域、频域、倒谱，循环谱等,Matlab实现界面友好，仿真图是速度、距离、幅度三维图像，对信号进行频谱分析及滤波。( Optimization class contains several simple sample programs, The commonly used digital signal modulation based on artificial neural network, FMCW frequency modulated continuous wave radar range and angular measurements, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Matlab to achieve user-friendly, FIG simulation speed, distance, amplitude three-dimensional image, The signal spectral analysis and filtering.)

Resolve a calibration problem that is to estimate mean value and confidence interval of x since y

数字散斑相关(DSCM)程序，可以精确算出前后两幅图片的位移，精确到亚像素(Digital speckle correlation (DSCM) program, you can accurately calculate the two pictures before and after the displacement, to the sub-pixel precision)

用pocklington方程矩量法计算半波对称阵子天线的电流分布(Pocklington equation method of moments to calculate the half-wave symmetric time around the antenna current distribution)

说明：  hdr格式高光谱图像matlab读取与显示，含数据集(Matlab reading and display of hyperspectral image in HDR format, including data set)

求解椭圆型，双曲型和抛物型偏微分方程的matlab代码(Solve the elliptic, hyperbolic and parabolic partial differential equations matlab code)

说明：  matlab实验中，用来确认嵌入信息位置的程序，包含了randinterval.m。(matlab experiment, the information used to identify the location of embedded programs, including the randinterval.m.)

Forward kinematics for Stewart Platform with fixed actuators

二维求根MUSIC算法是改进的一种MUSIC算法，对于面阵的二维DOA估计的编程者有重要用途。(Dimensional root finding MUSIC algorithm improved MUSIC algorithm, programming for the two-dimensional plane array DOA estimation purposes.)