- #1
abdo375
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I have a couple of questions regarding the representation of a signal in the frequency domain I wish someone could help me with..
1-why is it when we represent a non-periodic signal in the frequency domain it is continuous while the frequency domain of a periodic signal is discrete ?
2-what does it mean when we transfer a signal into the frequency domain
(say a rect wave what does it mean that the representation of it in the frequency domain is sinc, I know that it represents the different frequencies in the signal but why does it decay ?).
3-When plotting the signal in the freq. domain and the x-axis is the freq. in Hz what does the y-axis represent ?
thanks...
1-why is it when we represent a non-periodic signal in the frequency domain it is continuous while the frequency domain of a periodic signal is discrete ?
2-what does it mean when we transfer a signal into the frequency domain
(say a rect wave what does it mean that the representation of it in the frequency domain is sinc, I know that it represents the different frequencies in the signal but why does it decay ?).
3-When plotting the signal in the freq. domain and the x-axis is the freq. in Hz what does the y-axis represent ?
thanks...