Q. Which of the following is not a detection technique used for detection of π/4 QPSK signals?

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Q. In non-linear modulation, the amplitude of the carrier varies with the variation of modulating signal.

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Q. In constant envelope family of modulation, class C amplifiers introduces degradation in spectrum occupancy.

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Q. Constant envelope modulation techniques occupy ______ bandwidth than linear modulation schemes.

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Q. In BFSK __________ of constant amplitude carrier signal is switched between two values.

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Q. MSK stands for ________

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Q. What is the modulation index of MSK?

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Q. The modulation index of an FSK signal is similar to modulation index of ________

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Q. The name minimum phase shift keying implies minimum _________

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Q. MSK is sometimes also referred as _________

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Q. Which of the following is not a property of MSK?

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Q. MSK is a special form of OQPSK.

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Q. GMSK is a ________ of MSK.

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Q. Which of the following holds true for GMSK?

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Q. MSK has complex demodulation and synchronization circuits.

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

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Q. In an M-ary signalling scheme two or more bits are grouped together to form a _______

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Q. The number of possible signal in M-ary signalling is given by M and M = __________ where n is an integer.

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Q. M-ary signalling techniques are not sensitive to timing jitters.

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Q. M-ary modulation schemes have very good power efficiency.

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