pvneizubianhua

利用两层BP神经网络训练加权系数。隐含层的激活函数取S型传输函数，输出层的激活函数取线性传输函数(Weighting factor of two layers of BP neural network training. The hidden layer activation function to take the S-shaped transfer function, the output layer activation function to take a linear transfer function)

合成地震记录是用声波测井或垂直地震剖面资料经过人工合成转换成的地震记录（地震道） 合成记录的制作是一个简化的一维正演的过程，合成记录F(t)是地震子波S(t)与反射系数R(t)褶积的结果。(Synthetic seismogram is sonic or vertical seismic profile data after conversion into synthetic seismograms (seismic trace) the production of synthetic seismogram is a simplified one-dimensional forward modeling process, synthetic seismogram F (t) is the seismic wavelet S (t) and the reflection coefficient R (t) the convolution results.)

说明：  forward处理程序，使用于煤炭、石油天然气行业(forward processing procedures used in the coal, oil and gas industry)

利用matlab产生dll的方法、步骤。可以利用matlab来生成dll(Step method, produced by DLL matlab. You can use matlab to generate DLl)

fs = 8000 t = (0:1/fs:1). x1 = cos(2*pi*t*300) x2 = cos(2*pi*t*400) ha = phased.ULA( NumElements ,10, ElementSpacing ,1) ha.Element.FrequencyRange = [100e6 300e6] fc = 150e6 x = collectPlaneWave(ha,[x1 x2],[10 20 45 60] ,fc) rng default noise = 0.1/sqrt(2)*(randn(size(x))+1i*randn(size(x))) hdoa = phased.ESPRITEstimator( SensorArray ,ha,... OperatingFrequency ,fc) doas = step(hdoa,x+noise) az = broadside2az(sort(doas),[20 60])

利用matlab读取ALSO SAR数据并进行成像。(ALSO image reading)

产生alpha序列alpha的范围在0到2之间(general alpha sequence)

基于matlab的小波分析，，，关于图像拼接的源码，， 共勉(Matlab wavelet analysis, source code, image stitching,)

matlab课件，主要介绍matlab的基本用法(matlab courseware)

基于MATLAB的times_two详解，主要解决的是times_two的问题(Based on MATLAB-times_two explain, the main problem lies in the question of times_two)