Let x(n) be N-periodic, and x(n) =   1, 0 ≤ n ≤ k − 1, 0, k ≤ n ≤ N − 1. Compute the discrete Fourier transform. Using Parseval’s formula, compute the sum NX−1 μ=1 1 − cos 2μk N 1 − cos 2μ N .

Hello, Am a student of Unviversité des Mascareignes in mauritius. Am doing my engineering in the field of electromechanical. I have an assignment to do in MATLAB. Can anyone help me to solve the problem. Please find attached the question.

Thanks in advance.

Raleeb Beeharry

Answer 1

[Matt J]

The fft command will let you do discrete Fourier Transforms.