Plotting signals discrete with dirac

Question

karim Soussou 2021-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/862730-plotting-signals-discrete-with-dirac

评论： John D'Errico 2021-7-13

I am still new in matlab and i am trying to plot those signals 𝑥1[𝑛] = 2𝛿[𝑛 + 𝐷1] − 3𝛿[𝑛 + 𝐷2] + 3𝛿[𝑛 − 𝐷3] + 2𝛿[𝑛 − 𝐷4] 𝑥2[𝑛] = 2𝑢[𝑛 + 𝐷1] − 3𝑢[𝑛 + 𝐷2] + 3𝑢[𝑛 − 𝐷3] + 2𝑢[𝑛 − 𝐷4] 𝑥3(𝑡) = 2𝑢(𝑡 + 𝐷1) − 3𝑢(𝑡 + 𝐷2) + 3𝑢(𝑡 − 𝐷3) + 2𝑢(𝑡 − 𝐷4) where D1=1, D2,=0 D3,=6 D4=0

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Answer 1

Chunru 2021-6-23

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https://ww2.mathworks.cn/matlabcentral/answers/862730-plotting-signals-discrete-with-dirac#answer_731045

在 MATLAB Online 中打开

D = [-1 0 6 8]; % D1, D2 (negative), D3, D4(changed to 8);

x1 = [2 -3 3 2];

subplot(311); stem(D, x1); % for dirac

subplot(312); x2 = [2 -3 3 2]; x2 = cumsum(x2); stairs(D, x2); % for steps

subplot(313); x2 = [2 -3 3 2]; x2 = cumsum(x2); stairs(D, x2);

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John D'Errico 2021-7-13

Please don't do student homework assignments for them. It does not help them, except to teach them there is always someone willing to do their work for them. That is not the purpose of Answers.

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