time reversal

AC101 Circuit application

ofdm发送端和接收端，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。(ofdm sending end and receiving end, 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.)

CRectTracker（俗称“橡皮筋”类）是一个非常有意思的类，这是一个详细的的使用说明(CRectTracker (commonly known as the rubber band ) is a very interesting class, this is a detailed instructions for the use of MSWord file)

对于自控原理中状态反馈的研究，其中包括了matlab的代码，还有仿真结果(For the self-control theory of state feedback in)

说明：  硬阈值去噪的MATLAB算法实现 源程序代码(MATLAB hard threshold denoising algorithm source code)

此程序提取Gabor小波特征，然后由SVM进行分类的Matlab源代码(The Gabor wavelet feature extraction process, then classified by the SVM in Matlab source code)

本程序实现将一幅高分辨率图像平均分成四幅低分辨率图像，（稍微修改即可任意等分）像素没有损失。(Image division。)

Conversion from absorbance to transmittance or vice versa 将光从吸光度转为透光度，或相反(Conversion from absorbance to transmittance or vice versa will be light from absorbance to transmittance, or vice versa)

比较两个netcdf文件 1。通过添加内部ind2sub1函数remove函数依赖第三方 2。格式化文本(Description NCCMP compares two netcdf files and prints the differences. This function is useful for testing mathematical forecasting or prediction models. USAGE: NCCMP(ncfile1,ncfile2) NCCMP(ncfile1,ncfile2,tolerance,forceCompare) INPUT: ncfile1- name of the NetCDF file to compare ncfile2- name of the NetCDF file to compare tolerance- Compare numeric data using a tolerance threshold forceCompare- if false, exit when first difference is found true: continues to process all variables EXAMPLES: nccmp( old.nc , new.nc ,0.000001) nccmp( old.nc , new.nc ,[],true) FEATURES: 1. Print the differences and their locations 2. Exits when first difference is found or optionally continues to process all variables 3. User defined tolerance threshold to compare the variables TO DO: 1. Specific variable inclusion or exclusion 2. Specific attribute inclusion or exclusion 3. Option to ignore the history attribute 4. Ignore difference between v)

可以实现动态绘制矩形、圆形、椭圆形等图样。matlab例程(Can dynamically draw the rectangle, round, oval and other patterns. matlab routines)