Which of the following is a combined linear and constant envelope technique?(a) MPSK(b) PSK(c) BPSK(d) QPSKI had been asked this question in a job interview.Question is from Combined Linear and Constant Envelope Modulation Techniques topic in chapter Modulation Techniques for Mobile Radio of Wireless/Mobile

Which of the following is a combined linear and constant envelope tech

1.	Which of the following is a combined linear and constant envelope technique?(a) MPSK(b) PSK(c) BPSK(d) QPSKI had been asked this question in a job interview.Question is from Combined Linear and Constant Envelope Modulation Techniques topic in chapter Modulation Techniques for Mobile Radio of Wireless/Mobile
Answer» RIGHT option is (a) MPSK To explain I would SAY: 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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