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The Schumann resonance frequencies are a set of eigenmodes in the extremely low frequency (ELF) portion of the electromagnetic field spectrum. These frequencies are only present for planetary-like bodies with a substantial ionosphere acting as a perfect electric conductor, thus forming a resonance cavity with the surface. In this example, the Schumann resonance frequencies for the Earth are calculated.

PI控制的相关模型，以及PI参数设置问题。。。(PI control relevant model, and PI parameter setting problem.)

vc调用matlab dll 读xls内容(vc call the matlab dll reading xls content)

a beginer s guide to matlab, english version

基于互功率谱的时延估计，计算目标和海洋回波的功率谱密度,一个很有用的程序。( Based on the time delay estimation of power spectrum, Calculating a target and ocean echo power spectral density, A very useful program.)

这是模式识别中模板匹配内容的Matlab例程，其中edit_distance程序用来计算两个符号字符串间的编辑距离； back-tracking程序是“回溯”法画出最佳路径的代价网格； Dtw-Sakoe.m程序是具有Sakoe-Chiba局部路径约束的动态时间弯 折。(This is a pattern recognition template matching the content of Matlab routines, which edit_distance procedures used to calculate the two symbols of the edit distance between strings back-tracking program is " back" method to draw the best path cost grid Dtw- Sakoe.m program is a Sakoe-Chiba local path constraint of the dynamic time warping.)

Matlab编写的串口通讯程序，可以实现PC与串口外设的通讯与检测(Serial communication program written in Matlab, can achieve PC and serial communication with the detection of peripheral)

Blind Source Seperation (BSS) now is a important technology. Independent Component Analysis (ICA) is the main technique of BSS. Suppose we mix many non-Gausse signal sources,ICA can seperate the mixed signal to orignal signals without any information. This Matlab Code simulate the using ICA for Multi User Detection (MUD) in CDMA system. We demo the CDMA system with 30 Users, and use ICA seperate the signal of each user at Base Transmit Station (BTS) with the only 30 Users signal.

如何减少ISI？分别用NLMS,BLMS，基于符号的LMS算法完成仿真，并比较结果，包括不同信道参数w，不同数据块长度L对其的影响。(How to reduce the ISI? Respectively NLMS, BLMS, symbol-based LMS algorithm to complete the simulation, and compare the results, including different channel parameters w, different data block length L of its impact.)

MATLAB程序 根据RGB图像创建一幅灰度图像(MATLAB program to create a gray scale image according to RGB image)