mm042

说明：  bp神经网络预测电力负载，很好用~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(bp netural network applied in electricity prediction)

自己编程产生一种四进制相位调制信号，为数字调制信号的识别做准备。(programming to produce a quaternary phase modulation signal, the recognition of digital modulation signals in preparation.)

说明：  matlab中similink入门指南。希望能够大家有些帮助，尤其对于刚刚入门的朋友。(matlab in similink Getting Started Guide. Some hope to be able to help everyone, especially for entry-just friends.)

点击栏目导航右侧上下文字滚动翻屏效,Compact News Previewer with jQuery Demo(Compact News Previewer with jQuery Demo)

OFDM时域均衡中所采用的utc算法，用Matlab写的代码(OFDM in time-domain equalizer used utc algorithm, using Matlab code written in)

simulink学习教材，快速学会simulink的基本使用(Simulink learning materials, basic use quickly learn to simulink)

this matlab code for convaloution 2d filter,best for beginer

environmental sound classification

有各种小波包分解的程序和子程序，能够有效快速地对振动信号进行分解。(There are various wavelet packet decomposition programs and subroutines, which can decompose vibration signals effectively and quickly.)

％radon transform clear all ％ N=800 n=1:N fs=200 t=n/fs x1=exp(j*2*pi*(5*t+0.5*5*t.^2)) x2=exp(j*2*pi*(5*t+0.5*15*t.^2)) x=x1+x2 ％N=length(x) ％ ambifunb(x ) ％*****************************************RAT naf=ambifunb(x) htl(abs(naf)) ％ [wh,rho,theta]=htl(abs(naf)) colormap([0,0,0]) ％ xlabel( 极半径 ) ％ ylabel( 角度 ) ％**************************************％找出峰值点的坐标,计算初始频率和调频斜率(正确) ％找出峰值点的坐标 b=max(max(wh)) [u,a]=find(wh>=0.8*b) ( Radon transformclear all N = 800 n = 1: N fs = 200 t = n/fs x1 = exp (j* 2* pi* (5* t+ 0.5* 5* t. ^ 2)) x2 = exp ( j* 2* pi* (5* t+ 0.5* 15* t. ^ 2)) x = x1+ x2 N = length (x) ambifunb (x)***************************************** RATnaf = ambifunb (x) htl (abs (naf)) [wh, rho, theta ] = htl (abs (naf)) colormap ([0,0,0]) xlabel (polar radius) ylabel (angle)************************************** to find the coordinates of the peak point, calculating the initial slope of the frequency and FM (right) find the peak point of the coordinates b = max (max ( wh)) [u, a] = find (wh)