代码搜索：实时频谱
找到约 3,876 项符合「实时频谱」的源代码
代码结果 3,876
www.eeworm.com/read/396263/8117765
m ex1002.m
function ex1002()
%syms f w u v t F;
%F=-2/(w^2+u^2);
%f=ifourier(F,u,v)
subplot(1,2,1),fplot('-2/(x*x)', [0.1,3]);
title('频谱函数');
hold on;
subplot(1,2,2),fplot('x*(2*heaviside(x)-1)',[-3,3]);
www.eeworm.com/read/246680/12713228
m ex1002.m
function ex1002()
%syms f w u v t F;
%F=-2/(w^2+u^2);
%f=ifourier(F,u,v)
subplot(1,2,1),fplot('-2/(x*x)', [0.1,3]);
title('频谱函数');
hold on;
subplot(1,2,2),fplot('x*(2*heaviside(x)-1)',[-3,3]);
www.eeworm.com/read/323211/13347251
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/307267/13724801
txt frequencyspectrum.txt
n=[-64:64];
y=sin(pi*n/25);
subplot(2,1,1);
plot(n,y);
Y=fft(y); %对正弦信号fft变换
subplot(2,1,2);
plot(n,abs(Y));
ylabel('Y(k)');
title('信号频谱分布');
d,锯齿波
Fs=500;
t=0:1/Fs:0.3;
x=sawtoot
www.eeworm.com/read/486198/6538019
m 3-10.m
%例程3-10 产生扫频信号频谱
t = -1:0.001:1; %时间范围为[-1 1]，采样频率为1kHz
fo = 100; f1 = 400; %起始频率为100Hz，终止频率为400Hz
y = chirp(t,fo,1,f1,'q',[],'convex');
spectr
www.eeworm.com/read/485392/6561193
m 3-10.m
%例程3-10 产生扫频信号频谱
t = -1:0.001:1; %时间范围为[-1 1]，采样频率为1kHz
fo = 100; f1 = 400; %起始频率为100Hz，终止频率为400Hz
y = chirp(t,fo,1,f1,'q',[],'convex');
spectr
www.eeworm.com/read/341613/12075853
m 3-10.m
%例程3-10 产生扫频信号频谱
t = -1:0.001:1; %时间范围为[-1 1]，采样频率为1kHz
fo = 100; f1 = 400; %起始频率为100Hz，终止频率为400Hz
y = chirp(t,fo,1,f1,'q',[],'convex');
spectr
www.eeworm.com/read/338125/12323595
m 检测到距离信息的雷达回波信号.m
% 雷达回波线性调频信号及其频谱图
close all
clear all
clc;
tao=1*10^(-4);
f0=0;
B=1*10^6;
u=B/tao;
t=-tao/2:tao/1023:tao/2;
R=5000; %雷达与物体距离
c=3e8;
t0=2*R/c;
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/415746/11055956
m 3-10.m
%例程3-10 产生扫频信号频谱
t = -1:0.001:1; %时间范围为[-1 1]，采样频率为1kHz
fo = 100; f1 = 400; %起始频率为100Hz，终止频率为400Hz
y = chirp(t,fo,1,f1,'q',[],'convex');
spectr