Low-Cost Implementation of Single Frequency Estimation Scheme Using Auto-Correlation Function

Hyun YANG  Young-Hwan YOU  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E93-A   No.6   pp.1251-1253
Publication Date: 2010/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E93.A.1251
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
single frequency,  autocorrelation,  sinusoid,  

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This letter proposes a low-complexity scheme for estimating the frequency of a complex sinusoid in flat fading channels. The proposed estimator yields an estimation performance that is comparable to the existing autocorrelation-based frequency estimator, while retaining the same frequency range. Its implementation complexity is much lower than the conventional scheme, thus this allows for fast estimation in real time.