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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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Introduction-to-Simulink-with-Engineering-Applica
A book for MATLAB beginners
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IMPULSE_GENERATION
THIS IS TO CREATE IMPULSE VOLTAGE WAVE USING MARX SINGLE GENERATOR CIRCUIT
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otsu
Chinese remainder theorem
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fxtzls
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forces, NATO, and other allied militaries. Link-16 is a hybrid
frequency-hopped/direct sequence spread spectrum system that
utilizes minimum-shift keying (MSK) to modulate the chips, cyclical
code-shift keying (CCSK) to modulate the 32-chip symbols, and a (31, 15) Reed Solomon (RS) code with hard decision decoding (UDD) for forward error correction (FEC).)
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