Adaptive estimation of a time-varying array shape using the tracking properties of the LMS algorithm
Sylvie Marcos, Odile Macchi · 2003
The author deals with array processing using a flexible antenna whose shape is time-varying. The purpose is to improve the techniques of beamforming and source-bearing estimation by estimating the array shape in real time. The original contribution of this paper is the use of the capability of the LMS (least-mean-squares) algorithm in adapting a nonstationary environment in association with the knowledge of a pilot signal. Limitations concerning the variations that can be tracked are established and performance gains on beamforming and source-bearing estimation techniques are shown.>