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example4_3
例3:分析占空比为ta的矩形脉冲频谱
T=1 时间窗大小
ta=0.5 占空比
N=256
t=linspace(-T,T,N)
ts=2*T/N
fs=1/ts
(x=zeros(1,N)
x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1)
y=fft(x,N)
figure
plot(t,x)
title([ 时域信号图 占空比为 ,num2str(ta)])
axis([-T T-0.2 1.2])
xlabel( t /s )
figure
subplot(211)
f=linspace(-fs/2,fs/2,N)
plot(f,abs(fftshift(y))/N)
title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ])
xlabel( f /Hz )
)
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中文(简体)英语日语
翻译文字或网页
在应用程序中调用内核函数获取父进程的全路径名的最好方法。在辨识由谁启动的时候要用。
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Zài yìngyòng chéngxù zhōng tiáo yòng nèihé hánshù huòqǔ fù jìnchéng de quán lùjìng míng de zuì hǎo fāngfǎ. Zài biànshì yóu shuí qǐdòng de shíhou yào yòng.The best way to call the kernel function to get the full path name of the parent process in the application. In recognition of who started the time to use.)
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