ipmax
Newbie level 5

Hi all,
How does noise affect the PSD of a received signal.
y = x + n
PSD
= PSD(x) + PSD
So, the PSD of received signal is higher in all frequencies as compared to the transmitted signal.
So, if my understanding is correct, if at a particular frequency PSD(x) = -10 dB and white noise PSD = -25dB, the received signal will have PSD of -35 dB at that frequency. Is this understanding correct?
Thanks,
Max
How does noise affect the PSD of a received signal.
y = x + n
PSD
So, the PSD of received signal is higher in all frequencies as compared to the transmitted signal.
So, if my understanding is correct, if at a particular frequency PSD(x) = -10 dB and white noise PSD = -25dB, the received signal will have PSD of -35 dB at that frequency. Is this understanding correct?
Thanks,
Max