Modified robust time delay estimation algorithm based on cyclostationarity in impulsive noise

Autor: Yang LIU, Tian-shuang QIU, Jing-chun LI
Jazyk: čínština
Rok vydání: 2013
Předmět:
Zdroj: Tongxin xuebao, Vol 34, Pp 184-190 (2013)
Druh dokumentu: article
ISSN: 1000-436X
DOI: 10.3969/j.issn.1000-436X.2013.06.022
Popis: The problem of time delay estimation (TDE) for cyclostationary signals in the presence of α-stable distribution impulsive noise and interfering signals was addressed.Since the conventional algorithms based on the second-order cy-clic spectral correlation function degenerated severely in impulsive noise environment,a novel robust algorithm based on the fractional lower-order spectrum was proposed.Compared with conventional spectra analysis methods,this novel method could suppress Gaussian noise,non-Gaussian impulsive noise and interfering signals more effectively.Simulation results demonstrate the effectiveness and robustness of the novel algorithm.
Databáze: Directory of Open Access Journals