SNR-independent methods for estimating maximum Doppler frequency

Author

Yu, Hyunkyu ; Park, Goohyun ; Cho, Hangyu ; Kang, Changeon ; Hong, Daesik

Author_Institution

Dept. of Electr./Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

12

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

384

Lastpage

386

Abstract

In this letter, we propose two maximum Doppler frequency estimators that are based on the level crossing rate (LCR) and the covariance function (COV). To eliminate the effect of additive noise, we analyze the conditions for the estimators independent of the signal-to-noise ratio (SNR) and implement the conditions with a simple downsampling process. The proposed methods achieve good SNR-independent performance.

Keywords

Doppler effect; Rayleigh channels; covariance analysis; frequency estimation; interference suppression; mobile radio; sampling methods; COV; LCR; SNR-independent method; additive noise; covariance function; downsampling process; level crossing rate; maximum Doppler frequency estimator; noise suppression; signal-noise ratio; AWGN; Additive white noise; Autocorrelation; Bandwidth; Discrete Fourier transforms; Frequency estimation; Gaussian noise; Mobile communication; Signal to noise ratio; Working environment noise; Downsampling; maximum Doppler frequency estimation; noise suppression;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2005.843766

Filename

1420346