DocumentCode :
508569
Title :
Robust low-angle tracking by beamforming
Author :
Sebt, M.A. ; Sheikhi, A. ; Nayebi, M.M.
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran
fYear :
2009
fDate :
20-22 April 2009
Firstpage :
1
Lastpage :
6
Abstract :
One of the agents of error in angle of arrival estimation of signal is the response of the ground to the reflected waves from the target. In low-height target situations this phenomenon can be so tormenting that may cause much more error than thermal noise. In this article two methods of Fixed Beam and Double Null are used as preliminary techniques to overcome the problem of low-altitude targets angle estimation and the optimum weights for beam-forming array radar are proposed. The beam-forming methods enable the radar to estimate the target angle precisely while it is robust against diffuse and specular ground reflection components and the exact knowledge of surface slope is not required.
Keywords :
array signal processing; direction-of-arrival estimation; radar signal processing; radar tracking; angle of arrival estimation; beamforming array radar; double null technique; fixed beam technique; low-altitude target angle estimation; robust low-angle tracking; specular ground reflection component;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Radar Conference, 2009 IET International
Conference_Location :
Guilin
ISSN :
0537-9989
Print_ISBN :
978-1-84919-010-7
Type :
conf
Filename :
5367432
Link To Document :
بازگشت