代码搜索：波形合成
找到约 3,528 项符合「波形合成」的源代码
代码结果 3,528
www.eeworm.com/read/225679/14526064
m f5_2.m
%产生非平稳信号
%%暂态信号1
sig1=fmlin(128,0,0.3);
%%暂态信号2
sig2=fmlin(128,0.2,0.4);
sig=sig1+sig2;
%时域波形
figure(1)
plot(real(sig),'LineWidth',2);
hold on;
plot(imag(sig),'ro--');
legend('实部','虚部');
x
www.eeworm.com/read/225679/14526150
m f8_2.m
%实验信号
N=1024;
t=1:N;
%%外环故障信号
fid=fopen('I3CH4.dat','r');
sig=fread(fid,N,'int16');
fclose(fid);
%归一化
sig=(sig-mean(sig))/std(sig,1);
%采样频率
fs=10000;
%时域波形
figure(1)
plot(t/fs,sig);
x
www.eeworm.com/read/225679/14526274
m f4_5.m
%产生非平稳信号
%%暂态信号1
sig1=real(amgauss(128,45).*fmconst(128,0.25,45));
%%暂态信号2
sig2=real(amgauss(128,85).*fmconst(128,0.25,85));
sig=sig1+sig2;
%时域波形
figure(1)
plot(sig,'LineWidth',2);
xlabel('时间
www.eeworm.com/read/220331/14803663
m ex0905.m
%例9.5调制信号的波形及其功率谱；
Fs=1000;
Fc=400;
N=1000;
n=0:N-2;
t=n/Fs;
x=sin(2*pi*50*t);
subplot(221)
plot(t,x);
xlabel('t(s)');
ylabel('x');
title('被调信号');
axis([0 0.1 -1 1])
Nfft=1024;
window=ha
www.eeworm.com/read/220331/14803667
m ex0906.m
%例9.6调制信号的波形及其频谱；
R=0.005;t=-1.2:R:1.2;
f=Heaviside(t+1)-Heaviside(t-1);
f1=f.*cos(10*pi*t);
subplot(221)
plot(t,f)
xlabel('t');
ylabel('f(t)');
subplot(222);
plot(t,f1);
xlabel('t');
ylabe
www.eeworm.com/read/216263/15022322
m exa6_15.m
%exa060304_pyulear.m, for example 6.3.4
%to test pyulear.m;
clear all;
Fs=1000; % 采样频率
%信号序列产生；
n=0:1/Fs:.3;
w0=200*pi;
w1=400*pi;
xn=cos(w0*n)+sin(w1*n)+randn(size(n));
% 绘制信号波形
subplo
www.eeworm.com/read/207232/15279064
m f8_2.m
%实验信号
N=1024;
t=1:N;
%%外环故障信号
fid=fopen('I3CH4.dat','r');
sig=fread(fid,N,'int16');
fclose(fid);
%归一化
sig=(sig-mean(sig))/std(sig,1);
%采样频率
fs=10000;
%时域波形
figure(1)
plot(t/fs,sig);
x
www.eeworm.com/read/207228/15279092
m f4_5.m
%产生非平稳信号
%%暂态信号1
sig1=real(amgauss(128,45).*fmconst(128,0.25,45));
%%暂态信号2
sig2=real(amgauss(128,85).*fmconst(128,0.25,85));
sig=sig1+sig2;
%时域波形
figure(1)
plot(sig,'LineWidth',2);
xlabel('时间
www.eeworm.com/read/37289/900949
m 语音信号的时域分析.m
clear all;close all;clc;
Fs=8000;%采样率8000Hz
y=wavrecord(3*Fs,Fs,'single');%录音时长3秒，16位量化
wavplay(y,Fs);
figure(1);plot(y);
title('语音波形');
figure(2);
F1=enframe(y,200);
eng=sum(F1.^2);
subplo
www.eeworm.com/read/473523/6845342
m f5_1.m
%产生非平稳信号
%%暂态信号1
sig1=fmlin(128,0,0.4);
%%暂态信号2
sig2=fmlin(128,0.1,0.45);
sig=sig1+sig2;
%时域波形
figure(1)
plot(real(sig),'LineWidth',2);
hold on;
plot(imag(sig),'ro--');
legend('实部','虚部');