Title :
Realtime phase tracking with multiplier-free barycenter approximation in digital synchronous QPSK receiver for coherent detection
Author :
Hoffmann, S. ; El-Darawy, M. ; Pfau, T. ; Wördehoff, C. ; Peveling, R. ; Rückert, U. ; Noé, R.
Author_Institution :
EIM-E, Univ. of Paderborn, Paderborn, Germany
Abstract :
A multiplier-free phase estimation algorithm for coherent QPSK detection is presented. The barycenter approach is modified by a selectivity mechanism that improves performance. In addition to recently published measurement results, theoretical derivations and simulation results are provided.
Keywords :
phase estimation; quadrature phase shift keying; receivers; coherent detection; digital synchronous QPSK receiver; multiplier-free barycenter approximation; multiplier-free phase estimation algorithm; realtime phase tracking; Additive noise; Approximation algorithms; Digital signal processing; Filters; Phase detection; Phase estimation; Phase modulation; Quadrature phase shift keying; Signal processing algorithms; Viterbi algorithm;
Conference_Titel :
LEOS Annual Meeting Conference Proceedings, 2009. LEOS '09. IEEE
Conference_Location :
Belek-Antalya
Print_ISBN :
978-1-4244-3680-4
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2009.5343406
