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尝试用MATLAB对数字通信系统的各种数字调制技术进行仿真(Try to use MATLAB for digital communication system simulation of various digital modulation techniques)

智能天线自适应RLS算法matlab仿真(Smart Antenna Adaptive RLS algorithm simulation)

一种改进的图像压缩方法及其Matlab实现，希望对大家有所帮助(An improved image compression method and its Matlab, we hope to help)

System identification with adaptive filter using full and partial-update Normalised-Least-Mean-Squares

优化算法程序包。有lm方法， smarquart法，等等。(Optimization package. Have lm, smarquart law.)

首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。(First, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives. And then the characteristics of long training word, the correlation operation for the FFT window starting position of an OFDM symbol estimate. The estimated position of the FFT window, the first small frequency offset in the time domain estimation, the two long training word small frequency offset compensation, the FFT operation, the FFT result of the operation for integer frequency offset estimate. These parameter estimation is completed, the data can be demodulated on. The first portion of the data for a complete frequency offset compensation, and based on the estimated FFT window position of the FFT operation to obtain frequency domain data, demodulated. Then corresponding to the position of the pilot subcarriers are extracted on pilot inform)

impedance caracteristic of microstrip lines

IDW距离反比加权方法，旋转机械二维全息谱计算的实用例程，基于分段非线性权重值的Pso算法。( IDW inverse distance weighting method, Rotating Machinery dimensional hologram of practical spectrum calculation routines, Based on piecewise nonlinear weight value Pso algorithm.)

用matlab 计算李雅谱诺夫指数功率谱哦，呵呵呵，可以下哦(lyp dajia key xiao heheh good)

是一些关于SAR成像滤波的集中滤波方法！基本的MATLAB算法(Some centralized filtering method on SAR imaging filter! Basic MATLAB algorithms)