This letter addresses the problem of on-line subsample time delay estimation of narrowband signals of known center frequency. A new form of the Lagrange interpolator lter is presented in this letter which is incorporated into the explicit time delay estimator (ETDE) method. Simulations show that ETDE with the lter modulated to the signal center frequency signiicantly outperforms conventional ETDE.

This paper proposes a new time delay estimation model, Summary Cross-correlation Function (SCCF). It is based on a hearing model of the human ear, which comes from a pitch perception model. The inherent relation between some time delay estimation (TDE) and pitch perception method is mentioned, and propose an idea some pitch perception models’ pre-processing can be used for references in TDE mod...

We address the problem of passive blind estimation of time-delays for several mutually uncorrelated source signals received by a similar number of sensors. The mixtures at the receivers are modeled as unknown linear combinations of differently delayed versions of the source signals. The standard tools used in blind source separation (BSS) for either static or convolutive mixtures are inappropri...

Time-delay estimation (TDE) is a common requirement of the ranging and localization systems often found in unattended ground sensors. In this paper we consider novel approaches to the TDE problem in a time-warping acoustic environment, such as that encountered when the propagation velocity is not constant—due to wind gusts, for example. An increasing propagation velocity induces a compression o...