Title :
DPSK demodulation with Doppler compensation
Author_Institution :
Lockheed Martin Commun. Syst., Camden, NJ, USA
Abstract :
This paper presents a technique for communications in the presence of rapidly varying Doppler. The modulation selected for this application is differential phase shift keying (DPSK). A number of receiver structures are proposed and their performance examined. It is shown that reliable communications can be achieved even at a data rate as low as 75 b/s and a Eb/N0 of only 4-8 dB without the use of a separate beacon receiver to track the frequency variations. SHF ship-board satellite communication is considered as an example
Keywords :
Doppler effect; compensation; data communication; demodulation; differential phase shift keying; mobile satellite communication; radio receivers; tracking filters; DPSK demodulation; Doppler compensation; SHF ship-board satellite communication; data rate; differential phase shift keying; rapidly varying Doppler; receiver structures; reliable communications; Bit error rate; Costs; Demodulation; Differential quadrature phase shift keying; Forward error correction; Frequency; Marine vehicles; Phase modulation; Satellites; Signal to noise ratio;
Conference_Titel :
Military Communications Conference, 1996. MILCOM '96, Conference Proceedings, IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-7803-3682-8
DOI :
10.1109/MILCOM.1996.571447
