Title :
Programmable fractional sample delay filter with Lagrange interpolation
Author :
Liu, G.S. ; Wei, C.H.
Author_Institution :
Inst. of Electron., Nat. Chiao Tung Univ., Taiwan
Abstract :
A new linear time-invariant FIR filter which can be programmed to synthetise any fractional sample delay with Lagrange interpolation is presented. An analytic closed-form expression for the coefficients of such an FIR filter is derived. Computer verification is provided for the N=4 case.
Keywords :
delay circuits; digital filters; filtering and prediction theory; interpolation; Lagrange interpolation; analytic closed-form; coefficients; computer verification; linear time-invariant FIR filter; programmable fractional sample delay filter; synthetise any fractional sample delay;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901031
