Identify the modulation schemes for the shown signal constellation diagrams
1
(a)-QPSK (b)-BPSK (c)-QAM
2
(a)-QPSK (b)-OQPSK (c)-MSK
3
(a)-OQPSK (b)-QAM (c)-QPSK
4
(a)-OQPSK (b)-QPSK (c)-MSK
Identify the modulation schemes for the shown signal constellation diagrams