Title :
Self-adaptive PLL for general QAM constellations
Author :
Jean-Marc, Brossier ; Pierre-Olivier, Amblard ; Benoit, Geller
Author_Institution :
ST Microelectron., Grenoble, France
Abstract :
This paper deals with the QAM phase estimation problem. After reviewing some classical solutions (Fourth power estimator and Costas loop), we propose several original improvements: self-adaptive first and second order loops. Furthermore, the performance are compared to the performance of the optimal loops.
Keywords :
phase estimation; phase locked loops; quadrature amplitude modulation; QAM constellations; QAM phase estimation problem; self-adaptive PLL; self-adaptive first order loop; self-adaptive second order loop; Abstracts; Filtering; Xenon;
Conference_Titel :
Signal Processing Conference, 2002 11th European
Conference_Location :
Toulouse
