Question

Find Energy with Parseval's Theorem

x[n]=sinc(n/10)sin((2pi*n)/4)

Answer 1

fourier transform stuff?

Answer 2

Yes 2 pulses right?

Answer 3

sinc will turn into rect , sin will be a delta , speaking roughly

Answer 4

them I have 2 functions, 1 centered in -PI/2 and 2 pi/2, If I calculate these areas, will be the energy? I don`t know if I'm too lost..... my first Parseval hahah

Answer 5

convolve the two , then you go on to find energy

Answer 6

are you electrical engineering student , btw?

Answer 7

Telecomunications

Answer 8

this is discreet inverse fourier transform ,I need to some review on this too

Answer 9

If I have the two pulses of equal size, compute the integral is equivalent to computing the area of these pulses. Then with Parseval, my result for the energy is pi / 2 * 10 ^ 3