A local polynomial approximation based beamforming for source localization and tracking in nonstationary environments
Vladimir Y. Katkovnik, Alex B. Gershman · IEEE Signal Processing Letters · 2000
A windowed local polynomial approximation (LPA) of time-varying directions-of-arrival (DOA) is exploited to derive a new form of beamformer for source localization and tracking in nonstationary environments. The relationship between our LPA-beamformer and conventional beamformer is discussed.