pdcom
Newbie level 6
How can we keep amplitude of PSK signal constant while doing simulation?
As we know in PSK information is in angle or phase and not in amplitude but the amplitude is fixed.
But when AWGN noise is added to modulated signal the amplitude of signal (both real and imaginary components are changed) and hence angle or phase of vector is changed and in demodulation we compare it with the orignal phase.
But how can we say that amplitude is fixed?
As we know in PSK information is in angle or phase and not in amplitude but the amplitude is fixed.
But when AWGN noise is added to modulated signal the amplitude of signal (both real and imaginary components are changed) and hence angle or phase of vector is changed and in demodulation we compare it with the orignal phase.
But how can we say that amplitude is fixed?