Multiplier-free realtime phase tracking in digital synchronous QPSK receiver for coherent optical detection

A multiplier-free phase estimation algorithm based on the barycentre approach for coherent QPSK detection is presented. A selectivity mechanism was developed that significantly improved its performance. In addition to recently published measurement results, theoretical background and new simulation...

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Bibliographic Details
Main Authors: Hoffmann, S., Herath, V., El-Darawy, M., Pfau, T., Wordehoff, C., Peveling, R., Ruckert, U., Noe, R.
Format: Conference Proceeding
Language:English
Subjects:
Digital signal processing
Optical detectors
Optical receivers
Phase detection
Phase estimation
Phase modulation
Quadrature phase shift keying
Signal processing algorithms
Switches
Viterbi algorithm
Online Access:Request full text
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Description
Summary:A multiplier-free phase estimation algorithm based on the barycentre approach for coherent QPSK detection is presented. A selectivity mechanism was developed that significantly improved its performance. In addition to recently published measurement results, theoretical background and new simulation results are presented.
ISSN:2164-7011
2690-3423
DOI:10.1109/ICIINFS.2009.5429888