학술논문

Low-complexity carrier-phase estimator suited to on-board implementation
Document Type
Periodical
Source
IEEE Transactions on Communications IEEE Trans. Commun. Communications, IEEE Transactions on. 48(9):1451-1454 Sep, 2000
Subject
Communication, Networking and Broadcast Technologies
Demodulation
Phase estimation
Viterbi algorithm
Phase shift keying
Frequency estimation
Signal to noise ratio
Frequency synchronization
Satellite communication
Asynchronous transfer mode
Time division multiple access
Language
ISSN
0090-6778
1558-0857
Abstract
In this paper, we describe and analyze a new feedforward carrier-phase algorithm suited to on-board digital implementation. The algorithm studied here (for phase recovery of M-ary phase-shift keying signals) has the particularity to perform all calculations in polar coordinates in order to reduce the implementation complexity. The defined phase estimator is operating at very low signal-to-noise ratio with small frequency offsets. Its performance is close to those of the Viterbi and Viterbi algorithm.