代码搜索：磁场分布
找到约 3,825 项符合「磁场分布」的源代码
代码结果 3,825
www.eeworm.com/read/315096/13552329
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/304826/13786063
txt 06-79.txt
例6-79 正态分布的参数估计。
有3组(每组40个元素)正态随机数据，其均值为25，均方差为3，求95%的置信区间和参数估计值。
>> X = normrnd (25,3,40,3)
X =
25.6883 24.0916 27.4359
21.2773 23.2913 24.5716
27.1000 24.6355 24.7004
www.eeworm.com/read/301807/13848158
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/207229/6359164
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/486788/6528514
txt 信道实例.txt
无线信道?
高斯白噪声信道还行
n=randn(1,1000);%高斯白噪声
x=rand(1,1000)%[-1,1]上均匀分布
for i=1:1000
if (x(i)>0.5) or (x(i)==0.5)
x(i)=1;
elseif x(i)
www.eeworm.com/read/484893/6575960
m example_quiver.m
% example_quiver.m
% 绘制矢量图
[X,Y]=meshgrid(-2:.2:2);
Z=X.*exp(-X.^2 - Y.^2+1);
% 得到X，Y位置处的向量
[DX,DY]=gradient(Z,.2,.2);
% 绘制等值线图
contour(X,Y,Z)
hold on
% 叠加矢量分布图
quiver(X,Y,DX,DY)
colormap h
www.eeworm.com/read/482203/6629398
m gccphat.m
function y=gccphat(t1,t2);
%[sx,fs,nibits]=wavread('d:\aaa\ttt.wav');
%x=sx(:,1);
%x=x';
%fs=16000;
%x=randn(1,30);
%x1=delay(x,2,0);
%x2=delay(x,10,0);
%snr=10;
%t1=awgn(x1,snr);%加入SNR的正态分布白
www.eeworm.com/read/480529/6665729
txt 06-79.txt
例6-79 正态分布的参数估计。
有3组(每组40个元素)正态随机数据，其均值为25，均方差为3，求95%的置信区间和参数估计值。
>> X = normrnd (25,3,40,3)
X =
25.6883 24.0916 27.4359
21.2773 23.2913 24.5716
27.1000 24.6355 24.7004
www.eeworm.com/read/406902/11432904
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/406599/11439276
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f