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Vikash Gupta • 31.32K Points
Instructor I 

Q. Which of the following is a combined linear and constant envelope technique?

(A) mpsk
(B) psk
(C) bpsk
(D) qpsk
Correct : Option (A)

Explanation: 
 m-ary phase shift keying (mpsk) is a combined linear and constant envelope technique. it is a part of m-ary modulation techniques. these modern modulation techniques exploit the fact that digital baseband data may be sent by varying both the envelope and phase of an rf carrier.

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