Title :
Modified LPA beamformer for localizing and tracking rapidly accelerated moving sources
Author :
Elkamchouchi, Hassan M. ; Nasr, Mohamed E. ; Ashour, Amira S.
Author_Institution :
Fac. of Eng., Alexandria Univ., Egypt
Abstract :
Smart antennas are urgently needed in the expanding field of communications. Thus, the problem of beamforming is primarily considered. A modified windowed local polynomial approximation (LPA) including the acceleration term in Taylor series expansion is considered in this paper. The weighted least squares approach is applied for localizing and tracking rapidly accelerated moving sources. In this paper, LPA-beamformer performance expressions and the problem of the optimal window choice are studied.
Keywords :
adaptive antenna arrays; array signal processing; direction-of-arrival estimation; least mean squares methods; polynomial approximation; tracking; DOA; MSE; Taylor series expansion; modified LPA beamformer; optimal window choice; smart antennas; tracking rapidly accelerated moving sources; weighted least squares approach; windowed local polynomial approximation; Acceleration; Array signal processing; Direction of arrival estimation; Least squares approximation; Least squares methods; Polynomials; Radar tracking; Sensor arrays; Taylor series; Vectors;
Conference_Titel :
Radio Science Conference, 2004. NRSC 2004. Proceedings of the Twenty-First National
Print_ISBN :
977-5031-77-X
DOI :
10.1109/NRSC.2004.1321770
