Asymptotic performance phase of the P/sup th/ power-law phase estimator

An expression for the true variance of the P/sup th/ power-law phase estimator, as the number of samples approaches infinity, is given. This expression is an extension to the linear approximation of Moeneclaey and de Jonghe (1994) which is known to be inadequate in some practical systems. Our new ex...

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Bibliographic Details
Main Authors: Cartwright, K.V., Kaminsky, E.J.
Format: Conference Proceeding
Language:English
Subjects:
Computer simulation
Educational institutions
Frequency estimation
H infinity control
Lakes
Linear approximation
Phase estimation
Phase shift keying
Quadrature amplitude modulation
Viterbi algorithm
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Summary:An expression for the true variance of the P/sup th/ power-law phase estimator, as the number of samples approaches infinity, is given. This expression is an extension to the linear approximation of Moeneclaey and de Jonghe (1994) which is known to be inadequate in some practical systems. Our new expression covers general 2/spl pi//P-rotationally symmetric constellations that include those of PAM, QAM, PSK, Star M-QAM, MR-DPSK, and others. This expression also generalizes the known expressions for QAM and PSK. Additionally, our expression reduces to the Cramer-Rao bound given by Steendam and Moeneclaey (2001), as SNR goes to zero. Monte Carlo simulations provide experimental verification of the theoretical expression for various constellations.
ISSN:1930-529X
2576-764X
DOI:10.1109/GLOCOM.2005.1577644