Title :
A local polynomial approximation based beamforming for source localization and tracking in nonstationary environments
Author :
Katkovnik, V. ; Gershman, A.B.
Author_Institution :
Dept. of Stat., South Africa Univ., Pretoria, South Africa
Abstract :
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.
Keywords :
array signal processing; direction-of-arrival estimation; polynomial approximation; tracking; DOA; beamforming; linear sensor array; local polynomial approximation; nonstationary environments; sliding window; source localization; source tracking; time-varying directions-of-arrival; Africa; Array signal processing; Councils; Narrowband; Polynomials; Robustness; Sensor arrays; Statistics; Taylor series; Vectors;
Journal_Title :
Signal Processing Letters, IEEE
