Title :
Adaptive subsample time delay estimation using Lagrange interpolators
Author :
Dooley, Saul R. ; Nandi, Asoke K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
fDate :
3/1/1999 12:00:00 AM
Abstract :
This letter addresses the problem of on-line sub-sample time delay estimation of narrowband signals of known center frequency. A new form of the Lagrange interpolator filter is presented in this letter, which is incorporated into the explicit time delay estimator (ETDE) method. Simulations show that ETDE with the filter modulated to the signal center frequency significantly outperforms conventional ETDE.
Keywords :
FIR filters; adaptive estimation; adaptive filters; delay estimation; interpolation; ETDE method; Lagrange interpolator filter; adaptive subsample time delay estimation; explicit time delay estimator method; narrowband signal; Delay effects; Delay estimation; Finite impulse response filter; Frequency estimation; Interpolation; Lagrangian functions; Narrowband; Signal processing algorithms; Signal resolution; Spatial resolution;
Journal_Title :
Signal Processing Letters, IEEE