Application of Kalman filter in frequency offset estimation for coherent optical quadrature phase-shift keying communication system

Wen Jiang; Yanfu Yang; Qun Zhang; Yunxu Sun; Kangping Zhong; Xian Zhou; Yong Yao

doi:10.1117/1.OE.55.9.096102

2 September 2016 Application of Kalman filter in frequency offset estimation for coherent optical quadrature phase-shift keying communication system

Wen Jiang, Yanfu Yang, Qun Zhang, Yunxu Sun, Kangping Zhong, Xian Zhou, Yong Yao

Author Affiliations +

Optical Engineering, Vol. 55, Issue 9, 096102 (September 2016). https://doi.org/10.1117/1.OE.55.9.096102

Abstract

The frequency offset estimation (FOE) schemes based on Kalman filter are proposed and investigated in detail via numerical simulation and experiment. The schemes consist of a modulation phase removing stage and Kalman filter estimation stage. In the second stage, the Kalman filters are employed for tracking either differential angles or differential data between two successive symbols. Several implementations of the proposed FOE scheme are compared by employing different modulation removing methods and two Kalman algorithms. The optimal FOE implementation is suggested for different operating conditions including optical signal-to-noise ratio and the number of the available data symbols.

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Wen Jiang, Yanfu Yang, Qun Zhang, Yunxu Sun, Kangping Zhong, Xian Zhou, and Yong Yao "Application of Kalman filter in frequency offset estimation for coherent optical quadrature phase-shift keying communication system," Optical Engineering 55(9), 096102 (2 September 2016). https://doi.org/10.1117/1.OE.55.9.096102

Published: 2 September 2016

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