Digital Modulation Techniques (ASK, FSK, PSK, BPSK) - Amplitude, Frequency and Phase Shift Keying
Digital Modulation Techniques (ASK, FSK, PSK, BPSK) - Amplitude, Fre…
Jun 21, 2018
engineeringmadeeasypro.com
SOLVED: The block diagram of a quadrature phase shift keying (QPSK) modulator is shown in Figure Q4 below.Binary input R bits/sStore two bitsQPSK outputSwitch T=3Figure Q4The QPSK output is given by s(t) = cos(wct) acos(wct) - bsin(wct). Obtain the coordinates (a,b) of the constellation points for i=0,1,2,3 which correspond to points arbitrarily and then sketch these points on a constellation diagram.For the binary input 00110110, sketch the corresponding waveform of the QPSK output.
SOLVED: The block diagram of a quadrature phase shift keying (QP…
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