Hardware implementation of pi/4-DQPSK modem for mobile communication (Short Communication)

Authors

  • K.P.M. Bhat Institute of Armament Technology, Pune
  • Saurabh Jogdand PVG College of Engineering & Technology, Pune
  • Salil Malshe PVG College of Engineering & Technology, Pune
  • Vasundhara Kelkar PVG College of Engineering & Technology, Pune

DOI:

https://doi.org/10.14429/dsj.51.2245

Keywords:

Mobile communication, Digital modulation, Dibit transformation, Analog multiplexer, Modulator hardware

Abstract

Spectrally 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.

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Published

2002-01-01

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

Issue

Vol. 51 No. 3: Unmanned Surveillance

Section

Electronics & Communication Systems

License

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