song-robu-i1m

用MATLAB实现通信原理中A律13折现的仿真(failed to translate)

这是一个关于abaqus子程序二次开发的学习程序，其适用于初学umat的同学。(this is a secondary development for abaqus,it is a easy material model)

Short-Time Spectrum Analysis and Cepstral analysis

This code is about migration of seismic data.

2DGabor filter used for Ridge detection in grayScale images

自己编写的BPM文件，用于时滞系统的辨识，辨识效果还不错(This is a M file of BPNN I have written for the identification of delay systems identification.The simulation result shows that the method is valid.)

无线衰落信道 在无线移动信道中，信号从发射天线经过复杂的传播环境到达接收天线，接收信号为各反射、衍射和散射分量以及信道噪声的复合，因而会产生严重的失真。另外，移动信道中由于移动台运动或信道环境的改变会使信道特性随时间随机变化，接收到的信号由于Doppler效应会产生更为严重的失真。 (OFDM has superior performance when transmitting high rate data in wireless fading channel.)

Studying Sound Frequency

pe to snr for equalizer zfl and mmse for channel [1 .55]/norm([1 .55]) and tap=5

说明：  求三角对角方程组Tx=f的解，其中T=[1 1 0 0 0,1 2 1 0 0,1 1 3 1 0,0 0 1 4 1, 0 0 0 1 5],x =[x1,x2,x3，...x5],f=[3,8,15,24,29](Diagonal triangle demand equations Tx = f the solution, in which T = [1 1 0 0 0,1 2 1 0 0,1 1 3 1 0,0 0 1 4 1, 0 0 0 1 5], x = [ x1, x2, x3, ... x5], f = [3,8,15,24,29])