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Efficient interpolators and filter banks using multiplier blocks

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2 Author(s)
Dempster, A.G. ; Dept. of Electron. Syst., Westminster Univ., London, UK ; Murphy, N.P.

We examine the use of efficient shift-and-add multiplier structures and multiplier blocks to reduce computational complexity in filter banks. This is more efficient than treating each bank filter separately. We also examine the Farrow (see Proc. Int. Symp. Circuits Syst. (ISCAS), p. 2641-2645) structure, which is used in interpolators. Applying multiplier blocks makes this structure cheaper than the more recognized Lagrange interpolator

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Signal Processing, IEEE Transactions on  (Volume:48 ,  Issue: 1 )