Title :
Time Delay Interpolation by System Response Coefficient Ratios
Author :
Gamba, Jonah ; Shimamura, Tetsuya
Author_Institution :
Denso IT Lab. Inc., Tokyo, Japan
Abstract :
In this letter, we propose a new method of time delay interpolation based on the finite impulse response (FIR) filter coefficient ratios and derived from the Lagrange interpolation coefficients. The proposed method gives an explicit formula for the time delay that requires no frequency-domain transformations, making it suitable for entirely time-domain applications. Simulation results confirm the effectiveness of the proposed method.
Keywords :
FIR filters; delay estimation; interpolation; signal processing; time-domain analysis; FIR filter; Lagrange interpolation coefficients; coefficient ratios; finite impulse response filter; system response; time delay interpolation; time-domain application; Delay effects; Delay estimation; Finite impulse response filter; Frequency estimation; Frequency response; Interpolation; Lagrangian functions; Least squares approximation; Sampling methods; Time domain analysis; Coefficient ratios; Lagrange interpolation; time delay;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2005.853047
