Adaptive interpolated timedelay estimation
Abstract
An adaptive delayestimation (ADE) algorithm is proposed for the continuous tracking of timedelay. The method uses an adaptive delay line which is interpolated by a firstorder filter. Two delayline interpolating filters are considered, each having a single coefficient which is estimated in real time. The first implements linear interpolation, and the second interpolates using a firstorder allpass filter. Since the ADE algorithm is derived from recursive GaussNewton optimization, it can be viewed as a recursive maximum likelihood (RML) algorithm for timedelay estimation.
 Publication:

IEEE Transactions on Aerospace Electronic Systems
 Pub Date:
 March 1985
 DOI:
 10.1109/TAES.1985.310616
 Bibcode:
 1985ITAES..21..180S
 Keywords:

 Adaptive Filters;
 Asymptotic Methods;
 Doppler Effect;
 Interpolation;
 Time Lag;
 Tracking Problem;
 Algorithms;
 Chirp;
 Fortran;
 Maximum Likelihood Estimates;
 Newton Theory;
 Radio Receivers;
 Sine Waves;
 Telecommunication;
 White Noise;
 Communications and Radar