samplingareconstruction

Application of spread spectrum for satellite land mobile systems is difficult in satellite link because of synchronization and providing code or considerable Doppler shift. This is particularly high for LEO satellites. So that, a Doppler shift carrying a frequency in band S can reach to several tens of kHz. To estimate and compensate Doppler, a CW pilot carrier is used. The aim of this study is simulate Doppler frequency estimation using MIMO-OFDM technique. Finally, the proposed algorithm is compared to MMSE algorithm in order to insure its performance.

LSJ－CC1110/CC2510 Example Software Packet Error Rate Application Example(LSJ-CC1110/CC2510 Example SoftwarePacket Error Rate Application Example)

基于MATLAB的图像变换，wash变换，可以完成边缘提取与检测等的要求(MATLAB-based image transformation, wash transform, edge extraction and detection can complete the requirements, etc.)

基于matlab实现的图像的光照补偿程序，可以有效提高图像的对比度(Matlab implementation of image-based illumination compensation program that can effectively improve the contrast of the image)

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。(For each particle ____Initialize particle END Do ____For each particle ________Calculate fitness value ________If the fitness value is better than the best fitness value (pBest) in history ____________set current value as the new pBest ____End ____Choose the particle with the best fitness value of all the particles as the gBest ____For each particle ________Calculate particle velocity according equation (a) ________Update particle position according equation (b) ____End)

同步电机的交直轴自感的计算方法，可用于dq模型的同步电机的计算和研究。(AC synchronous motor direct axis inductance calculation method can be used to model calculations and research dq synchronous motor.)

惯性仪器测试与数据分析 [严恭敏 编] 2012年版，该书配套的MATLAB代码，非常具有学习意义。(Inertial instrument test and data analysis [yan gongmin, Ed.] 2012 edition, the book is matched with MATLAB code, which is of great learning significance)

车辆工程平顺性方面的1/3倍中心频率的有关程序，我自己用的。大家可能要改一下。()

说明：  MATLAB下通过多种小波实验了解小波变换的原理教程及示例代码(MATLAB experiments under a variety of wavelet transform principle to understand tutorial and sample code)

双向协作通信的中断概率仿真，结果和《Performance Analysis of Two-Hop Relayed Transmissions over Rayleigh Fading Channels》里面的结论完全一样。可以得到三幅图。(Two-way collaborative communication outage probability simulation， results and 《Performance Analysis of Two-Hop Relayed Transmissions over the Rayleigh Fading Channels 》，the conclusion is exactly the same. You can get three in Fig.)