Please use this identifier to cite or link to this item: https://doi.org/10.1109/VETECS.2012.6239864
Title: Sample-autocorrelation-function-based frequency estimation of a single sinusoid in AWGN
Authors: Fu, H. 
Kam, P.-Y. 
Keywords: frequency estimation
phase unwrapping
sampleautocorrelation-function-based estimator
single sinusoid
Issue Date: 2012
Source: Fu, H.,Kam, P.-Y. (2012). Sample-autocorrelation-function-based frequency estimation of a single sinusoid in AWGN. IEEE Vehicular Technology Conference : -. ScholarBank@NUS Repository. https://doi.org/10.1109/VETECS.2012.6239864
Abstract: The problem of estimating the frequency of a single sinusoid observed in additive, white, Gaussian noise is addressed. An explicit, sample- autocorrelation-function-based, approximate maximum likelihood (ML) frequency estimator which does not require numerical search is derived. The structure of this estimator reveals that both the magnitude and the angle of the autocorrelation function should be utilized in estimation processing. Simulation results show that the estimator derived attains the Cramer-Rao lower bound at high signal-to-noise ratio, and has better performance than the planar filtered estimator developed in [22, 23] and the time-domain, approximate ML, received-signal-based estimator in [20, 21]. A new phase unwrapping algorithm is presented to faciliate an efficient, recursive implementation of the estimator. To have a better understanding on the sample-autocorrelation-function-based estimator, a geometric interpretation on the autocorrelation function is introduced. This interpretation allows us to propose a further simplified frequency estimator that resorts to the autocorrelation function angle increments to avoid phase unwrapping. By using the autocorrelation function expression, an alternative form to the frequency estimator of [20, 21] is derived. © 2012 IEEE.
Source Title: IEEE Vehicular Technology Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/71701
ISBN: 9781467309905
ISSN: 15502252
DOI: 10.1109/VETECS.2012.6239864
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

4
checked on Mar 7, 2018

Page view(s)

39
checked on Apr 20, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.