dierzhang

wimax物理层模块表述以及各模块功能性描述(wimax physical layer module expression and functional description of each module)

newton raphson using upfc

We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.

SPIHT的MATLAB源代码,希望对有需要的朋友有所帮助.(SPIHT the MATLAB source code, in the hope that there is a need to help a friend.)

说明：  多个系统数据同步公共部分函数源代码，太麻烦了，每次说明都要这么多字(data synchronization system over some public function source code, too cumbersome, each note must so many characters)

用matlab 实现bpsk的误码率蒙特卡洛仿真，可以作为编程的范例来用(Using matlab to achieve bpsk BER Monte Carlo simulation ，could be used as a programming paradigm)

robotic example simulated with matlab wich is important example

Objectif : concevoir le contrô le commande d une conditionneuse en suivant la démarche générale du cycle en « V » .

语音识别系统，在静音环境比较准确，但是假若有噪音或者其他情况会有问题，附预处理部分(Speech recognition system, in the quiet environment is accurate, but if there are noise problems or other conditions will be attached to some pretreatment)

these are the Mtlab functions to plot the figures in the book Communication system (by Haykin)