Under Fourier Series Approximation:
(a) Which signal is easier to approximate, the "Rectangular Pulse"
or "Triangle"?
That is, if 10 coefficients are used, which signal is better
approximated?
Please explain why this is the case by observing the
shape of the magnitude spectrum at the higher frequencies.
(b) How is the magnitude spectrum of "Noise" different from the
other signals?
Specifically, what do you notice about the "strength" of the
higher frequencies in the magnitude spectrum?
Try the demo that is titled "Listen to Fourier Series". Did you learn anything interesting from this demo?
Some hints about how to proceed with this problem: PDF file or HTML file (both files have identical content).
Thank you.