Fourier series for rectangular pulse function

[userXY]

I need help with the following question:

Derive the expression for coefficients of Fourier series in exponential form for the sequence of rectangular pulses (with amplitude A, period T and duration θ) shown in this image:



Derive the expression for signal power depending on the coefficients of Fourier series.


Question: Could someone show how to derive these expressions or give a reference for their derivation?

Note: This is not homework. I am practicing for exam.

 

[malli_1729]

Fourier is there in Engineering mathematics text books. In some signal processing text books also. Just Google it

 

[pforpashya]

Use any signal processing book whose author is Oppenhiam