Symbol Rate Estimation with Inverse Fourier Transforms

Author

Flohberger, Markus ; Kogler, Wolfgang ; Gappmair, Wilfried ; Koudelka, Otto

Author_Institution

Inst. of Commun. Networks & Satellite Commun., Graz Univ. of Technol.

fYear

2006

fDate

14-15 Sept. 2006

Firstpage

110

Lastpage

113

Abstract

A two-stage algorithm for blind symbol rate estimation is introduced, which applies to any linear modulation scheme. In the first stage, the inverse Fourier transform of the averaged power spectrum is used to extract a coarse estimate based on the evaluation of the related baseband shape. The accuracy of the result can be improved considerably if the accumulated timing error of the subsequent symbol synchronizer is assessed appropriately and fed back to the resampling unit for further refinement. The performance of the proposed algorithm is verified by simulations and compared to methods published in the open literature

Keywords

Fourier transforms; modulation; sampling methods; spectral analysis; averaged power spectrum; baseband shape; blind symbol rate estimation; inverse Fourier transforms; linear modulation scheme; resampling unit; symbol synchronizer; timing error; Baseband; Fourier transforms; Frequency estimation; Frequency synchronization; Phase shift keying; Quadrature amplitude modulation; Satellite communication; Shape; Signal to noise ratio; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Satellite and Space Communications, 2006 International Workshop on

Conference_Location

Madrid

Print_ISBN

1-4244-0118-6

Electronic_ISBN

1-4244-0119-4

Type

conf

DOI

10.1109/IWSSC.2006.256003

Filename

4023248