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Plotting a signal sin(2*pi*f*t) and obtaining a discrete periodic signal.

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Ahsan Q
Ahsan Q 2020-11-10
评论： Ahsan Q 2020-11-10
Given:
Discreet signal: sin((2𝜋f/fs)∙n∙T)for n=0,1,2,..
f=26;
fs=200;
n=2;
dt=0.005;
t=n*dt;
Required:
T==> I have to pick an integer value of T>1 such that sin((2𝜋f/fs)∙n∙T)is a periodic discrete signal.
How to graph periodic continuous signal sin(2𝜋ft) and periodic discrete signal sin((2𝜋f/fs)∙n∙T)

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采纳的回答

Setsuna Yuuki.
Setsuna Yuuki. 2020-11-10
You can use plot to graph continuous signal, and stem to graph discrete signal.
For example:
t = 0:6e-2:1;
signal = sin(2*pi*t);
subplot(2,1,1)
stem(t,signal)
subplot(2,1,2)
plot(t,signal)
  1 个评论
Ahsan Q
Ahsan Q 2020-11-10
How should I go about finding the T value so that sin((2𝜋f/fs)∙n∙T) is a periodic signal. I saw that you only plotted sin(2*pi*t). Otherwise the answer is perfect!

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