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New HB-weighted time delay estimation algorithm under impulsive noise environment 被引量:2
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作者 Sun Yongmei Qiu Tianshuang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第6期1102-1108,共7页
The traditional HB-weighted time-delay estimation (TDE) method degenerates under the impulsive noise environment. Two new time-delay estimation methods are proposed based on fractional lower order statistics (FLOS... The traditional HB-weighted time-delay estimation (TDE) method degenerates under the impulsive noise environment. Two new time-delay estimation methods are proposed based on fractional lower order statistics (FLOS) according to the impulsive characteristics of fractional lower order α-stable noises. Theoretic analysis and computer simulations indicate that the proposed covariation based HB weighted (COV-HB) algorithm can suppress impulsive noises in one received signal for 1 ≤α≤ 2, whereas the other proposed fractional lower order eovariancebased HB weighted (FLOC-HB) algorithm has robust performance under arbitrary impulsive noise conditions for the whole range of 0 〈α≤ 2. 展开更多
关键词 HB weighted time delay COVARIATION fractional lower order covariance.
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