ABSTRACT
Time delay estimation (TDE) algorithms are embedded in many
applications related to localization and tracking of sources, as part
of direction-of-arrival (DOA) estimating systems. Applications of
interest include voice tracking, sonar and radars [1-3]. For the
acoustic (voice) source tracking scenario that we will examine here,
the problem is approached by employing distant microphone arrays
for the collection of data in frames, so that the current TDE estimate
can be provided. DOA estimation relies on identifying the relative
delay between pairs of microphones using some statistical measure
that returns a peak at the correct DOA of the source. Such systems
are relevant in smart systems and critical infrastructure monitoring
[4, 5].
