We wish to approximate the triangular signal x(t), with a period x 1 (t) = r(t)

Question:

We wish to approximate the triangular signal x(t), with a period x₁(t) = r(t) − 2r(t − 1) + r(t − 2), by a Fourier series with a finite number of terms, let’s say 2N. This approximation should have 99% of the power of the triangular signal, use MATLAB to find the value of N.

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