Title :
Adaptive time-varying beamforming for source localization and tracking in nonstationary environment
Author_Institution :
Dept. of Stat., South Africa Univ., Pretoria, South Africa
Abstract :
The proposed beamformer in two aspects is different from the conventional one. The weights are dependent on time and two parameters θ and θ´. Maximization of the beamformer power on θ and θ´ gives estimates of direction-of arrival (DOA) and its first derivative. Simulation confirms an improved tracking ability of the new algorithm
Keywords :
adaptive signal processing; array signal processing; direction-of-arrival estimation; optimisation; tracking; DOA estimation; adaptive time-varying beamforming; algorithm; beamformer power; direction-of arrival; maximization; nonstationary environment; simulation; source localization; tracking; Africa; Array signal processing; Direction of arrival estimation; Fitting; Narrowband; Parametric statistics; Polynomials; Sensor arrays; Vectors; White noise;
Conference_Titel :
Africon, 1999 IEEE
Conference_Location :
Cape Town
Print_ISBN :
0-7803-5546-6
DOI :
10.1109/AFRCON.1999.820832
