Fast Algorithm for Symbol Rate Estimation

Suhua TANG  Yi YU  

IEICE TRANSACTIONS on Communications   Vol.E88-B   No.4   pp.1649-1652
Publication Date: 2005/04/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.4.1649
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
symbol rate,  cyclic autocorrelation,  cyclostationarity,  

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The cyclic autocorrelation of common digital modulation is researched, and the relationship between the cyclic autocorrelation and the delay, corresponding to the symbol rate, is deduced, then a searching algorithm for the symbol rate is proposed. Theoretical analyses and simulation results show that this method has less computation complexity and is also quite accurate. The estimation result is almost immune to the stationary noise. It's of practical value to modulation recognition and blind demodulation.