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Design of discrete coefficient FIR filters by a fast entropy-directed deterministic annealing algorithm
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2005 (Engelska)Ingår i: IEEE Transactions on Signal Processing, ISSN 1053-587X , Vol. 52, nr 3, s. 1006-1014Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In this paper, we present an entropy-directed deterministic annealing optimization algorithm and show its applicability to the problem of designing digital filters with discrete coefficients, each implemented as a sum of signed power-of-two terms and additional general hardware constraints. The algorithm is based on analogies from statistical mechanics and is related to the well-known mean field annealing algorithm. It utilizes estimates of conditional entropy to prune the problem during the optimization, thereby reducing the computational time by 30 to 50%. In conjunction with a scheme to compute the value of the objective function as a sequence of updates, this approach leads to a very fast algorithm. As an application example demonstrating the potential of the new method, we consider the design of digital filters with discrete coefficients consisting of a minimum number of signed power-of-two terms. © 2005 IEEE.

Ort, förlag, år, upplaga, sidor
IEEE , 2005. Vol. 52, nr 3, s. 1006-1014
Nyckelord [en]
Hardware constraints, annealing, entropy, FIR
Nationell ämneskategori
Signalbehandling
Identifikatorer
URN: urn:nbn:se:bth-8360DOI: 10.1109/TSP.2004.8422178ISI: 000227056400013Lokalt ID: oai:bth.se:forskinfo4D82B834D803023AC1257500002D942COAI: oai:DiVA.org:bth-8360DiVA, id: diva2:836070
Tillgänglig från: 2012-09-18 Skapad: 2008-11-13 Senast uppdaterad: 2015-06-30Bibliografiskt granskad

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