fdtd_microstrip

永磁电机的矢量控制，在此基础上包含了负载转矩观测器(the load torque observer for PMSM)

This program is play and summary an video. Also, this support various codecs.

小波包变换的MATLAB程序,快速傅立叶变换频谱分析(Wavelet packet transform MATLAB program, fast Fourier transform spectrum analysis)

一种新的符号定时和载波频率同步算法,该算法将OFDM符号分成几部分。它使用相关性和积累在几个OFDM 符号获得估计函数。当部分的长度小于ISI自由地区,该算法可以识别它。然后估计的最优符号定时和载波频率偏移可以获得。计算机仿真结果表明,该算法不仅可以跟踪时变信道变化但也有较小的MSE比ML估计算法。(A new symbol timing and carrier frequency synchronization algorithm is presented and the algorithm divides the OFDM symbol into several parts. It uses correlation and accumulation in several OFDM symbols to acquire estimation function. When the length of part is smaller than that of ISI free region , the algorithm can distinguish it. Then the estimation of optimal symbol timing and carrier frequency offset can be acquired .The computer simulation results show that the proposed algorithm not only can track time varying channel change but also has smaller MSE than that of ML estimation algorithm.)

matlab 学习技巧，现在把我用的，也就是对我帮助很大的留个文件传上去，希望对大家有用，第一应用与技巧(matlab learning skills, and now I use, which is a great help to me to leave a document passed up, we want to be useful, the first application and skill)

说明：  考虑到文件名长度，对文件名进行排序(Matlab) Matlab的sortrows完全排ASCII排序：10.jpg排在2.jpg前(Sorting file name think about the length of file name in MatLab program.)

code to get optical flow using gradient cross correlation method

grid connected power system

Conceptually, a merge sort works as follows Divide the unsorted list into n sublists, each containing 1 element (a list of 1 element is considered sorted). Repeatedly merge sublists to produce new sorted sublists until there is only 1 sublist remaining. This will be the sorted list.

掌握功率谱估计的方法,分别产生两个零均值的白噪声数据 1 u n 和  2 u n ， 其功率都为 2 0.12 u   ，让  1 u n 和  2 u n 分别通过一个FIR 系统，得到输出为  1 v n 和  2 v n 。(Master power spectrum estimation method)