Title :
Efficient interpolators and filter banks using multiplier blocks
Author :
Dempster, A.G. ; Murphy, N.P.
Author_Institution :
Dept. of Electron. Syst., Westminster Univ., London, UK
fDate :
1/1/2000 12:00:00 AM
Abstract :
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
Keywords :
channel bank filters; computational complexity; digital filters; interpolation; multiplying circuits; Farrow structure; Lagrange interpolator; computational complexity reduction; efficient filter banks; efficient interpolators; multiplier blocks; shift-and-add multiplier structures; Adders; Channel bank filters; Computational complexity; Delay; Digital filters; Filter bank; Finite impulse response filter; Lagrangian functions; Polynomials; Signal processing algorithms;
Journal_Title :
Signal Processing, IEEE Transactions on
