Cramer-Rao lower bounds for QAM phase and frequency estimation.

Cramer-Rao lower bounds for QAM phase and frequency estimation.

In this paper, we present the true Cramer-Rao lower bounds (CRLBs) for the estimation of phase offset for common quadrature amplitude modulation (QAM), PSK, and PAM signals in AWGN channels. It is shown that the same analysis also applies to the QAM, FSK, and PAM CRLBs for frequency offset estimatio...

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Detalles Bibliográficos
Publicado en:IEEE Transactions on communications 49, 9 (2001).
Autor Principal: Rice, F.
Formato: Artigo
Idioma:English
Subjects:
AWGN channels.
BPSK.
CRLB.
Cramer-Rao lower bounds.
FSK.
PAM signals.
PSK.
QAM.
QPSK.
Coherent receivers.
Frequency estimation.
Frequency offset.
Minimum distance estimator.
Modulated CRLB.
Performance.
Phase estimation.
Phase offset.
Quadrature amplitude modulation.
Signal-to-noise ratio.
Synchronization circuits.
Unmodulated CRLB.
Unmodulated carrier wave.