Single frequency estimation with non-uniform sampling

Author

Gansman, J.A. ; Krogmeier, J.V. ; Fitz, M.P.

Author_Institution

Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

1

fYear

1996

fDate

3-6 Nov. 1996

Firstpage

399

Abstract

A new frame structure is proposed for pilot symbol assisted modulation (PSAM) systems which includes a small number of known pilots at the start of each frame. This facilitates the estimation of large frequency offsets without aliasing. Cramer Rao lower bounds and the exact ML estimates are derived for AWGN and Rayleigh fading channels. Finally, simulations show that the ML estimator has much better performance than existing reduced complexity estimators when applied to this sparse observation model.

Keywords

Gaussian channels; Rayleigh channels; fading; frequency estimation; maximum likelihood estimation; modulation; signal sampling; AWGN channels; Cramer Rao lower bounds; ML estimates; PSAM systems; Rayleigh fading channels; frame structure; frequency offsets; nonuniform sampling; performance; pilot symbol assisted modulation; pilots; single frequency estimation; sparse observation model; AWGN; Fading; Frequency estimation; Gaussian noise; Maximum likelihood estimation; Phase estimation; Probability density function; Sampling methods; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1996. Conference Record of the Thirtieth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-7646-9

Type

conf

DOI

10.1109/ACSSC.1996.600934

Filename

600934