• 대한전기학회
Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
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  • 한국과학기술단체총연합회
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Title Subband Adaptive Algorithm for Convex Combination of LMS based Transversal Filters
Authors 손상욱(Sohn, Sang-Wook) ; 이경표(Lee, Kyeong-Pyo) ; 최훈(Choi, Hun) ; 배현덕(Bae, Hyeon-Deok)
DOI https://doi.org/10.5370/KIEE.2012.62.1.133
Page pp.133-139
ISSN 1975-8359
Keywords Filter bank ; Subband adaptive filter ; LMS based algorithm ; Convex combination ; Mixing parameter
Abstract Convex combination of two adaptive filters is an efficient method to improve adaptive filter performances. In this paper, a subband convex combination method of two adaptive filters for fast convergence rate in the transient state and low steady state error is presented. The cost function of mixing parameter for a subband convex combination is defined, and from this, the coefficient update equation is derived. Steady state analysis is used to prove the stability of the subband convex combination. Some simulation examples in system identification scenario show the validity of the subband convex combination schemes.