@inproceedings{ca1186086030412fbd32264d4666f553,

title = "Analysis and fast implementation of oversampled modulated filter banks",

abstract = "Oversampled modulated filter banks (OSFBs) are popularly employed for a number of applications such as acoustic echo cancellation in order to reduce the processing complexity of a signal processing algorithm. Hence, an efficient implementation of OSFBs themselves is mandatory. In this paper, a polyphase description is used to remove redundancies in the filter operations and to factorize the OSFB into filter components depending on the prototype filter, and the modulating transform. Based on a state-space representation of this derived polyphase factorization, signal flow graphs can be obtained which permit a very simple and efficient OSFB implementation. The analysis is performed for a number of different classes of OSFBs, and a comparison to existing methods is drawn. ",

keywords = "oversampled filter banks , filter banks, acoustic echo cancellation, fast implementation, analysis, oversampled, modulated filter banks",

author = "Stephan Weiss",

year = "2002",

month = jul,

day = "1",

language = "English",

isbn = "0198507348",

series = "Institute of Mathematics and ITS applications conference series",

publisher = "Clarendon Press",

number = "71",

pages = "263--274",

editor = "McWhirter, {John G. } and Proudler, {Ian K. }",

booktitle = "Mathematics in signal processing V",

note = "5th International Conference on Mathematics in Signal Processing ; Conference date: 18-12-2000 Through 20-12-2000",

}