Estimation of Phase Noise in Oscillators with Colored Noise Sources

Author

Khanzadi, M. Reza ; Krishnan, Ram ; Eriksson, Thomas

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

Volume

17

Issue

11

fYear

2013

fDate

Nov-13

Firstpage

2160

Lastpage

2163

Abstract

In this letter we study the design of algorithms for estimation of phase noise (PN) with colored noise sources. A soft-input maximum a posteriori PN estimator and a modified soft-input extended Kalman smoother are proposed. The performance of the proposed algorithms are compared against those studied in the literature, in terms of mean square error of PN estimation, and symbol error rate of the considered communication system. The comparisons show that considerable performance gains can be achieved by designing estimators that employ correct knowledge of the PN statistics.

Keywords

Kalman filters; error statistics; estimation theory; mean square error methods; nonlinear filters; oscillators; phase noise; PN estimation; PN statistics; colored noise sources; communication system; mean square error; oscillators; phase noise; soft-input extended Kalman smoother; soft-input maximum a posteriori PN estimator; symbol error rate; Colored noise; Estimation; Kalman filters; Mathematical model; Phase noise; Vectors; Oscillator phase noise; colored phase noise; extended Kalman smoother; maximum a posteriori estimator;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.091113.131850

Filename

6600696