How to write this function in MATLAB

2021 2 11
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更新时间：2021 3 24
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Hello , I am trying to calculate the DTFT of a sequence and compare it using freqz function....
The DTFT of my sequence is
How do I program this in MATLAB ....
w is vectorized quantity
L = 40

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回答（1 个）

Drishan Poovaya
Drishan Poovaya 2021-3-24

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I understand you want to write this function in MATLAB with w as a vector. The code below should accomplish this
Pw = L*exp(-1i*w*(L-1)/2).*(sinc(w*L/(2*pi))./sinc(w/(2*pi)));

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