Hardware implementation of pi/4-DQPSK modem for mobile communication (Short Communication)
Keywords: Mobile communication, Digital modulation, Dibit transformation, Analog multiplexer, Modulator hardware
AbstractSpectrally efficient digital modulation schemes for land mobile voice transmission applications highlighting advantages of a 7Pi/4-DQPSK modem are briefly reviewed, A procedure to generate 7Pi/4-DQPSK signal by directly mapping pairs of input bits through dibit transformation function and analog multiplexer is described. Details of modulator hardware for a standard data rate of 48 kbps are also incorporated, A promising all-digital receiver structure which lends itself for miniaturisation, is described.
How to Cite
Bhat, K., Jogdand, S., Malshe, S., & Kelkar, V. (2002). Hardware implementation of pi/4-DQPSK modem for mobile communication (Short Communication). Defence Science Journal, 51(3), 315-320. https://doi.org/10.14429/dsj.51.2245
Electronics & Communication Systems
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