We propose a new nondata-aided clock recovery scheme for phase-shift keying (PSK) modulated signals. Its derivation is based on maximum-likelihood (ML) methods and leads to a feedforward structure that can be easily implemented in digital form. The algorithm exhibits improvements with respect to other existing circuits, especially with small excess bandwidth factors. Its performance is assessed by simulation for quaternary PSK (QPSK) and 8PSK formats.

Feedforward ML-Based Timing Estimation with PSK Signals

MORELLI, MICHELE;D'ANDREA, NUNZIO ALDO;
1997

Abstract

We propose a new nondata-aided clock recovery scheme for phase-shift keying (PSK) modulated signals. Its derivation is based on maximum-likelihood (ML) methods and leads to a feedforward structure that can be easily implemented in digital form. The algorithm exhibits improvements with respect to other existing circuits, especially with small excess bandwidth factors. Its performance is assessed by simulation for quaternary PSK (QPSK) and 8PSK formats.
Morelli, Michele; D'Andrea, NUNZIO ALDO; U., Mengali
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/198848
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