EFFICIENT IMPLEMENTATION OF THE CAPON BEAMFORMING USING THE LEVENBERG-MARQUARDT SCHEME FOR TWO DIMENSIONAL AOA ESTIMATION
Sung‐Woo Cho, Joon‐Ho Lee · Electromagnetic waves · 2013
In this paper, we adopt the Levenberg-Marquardt (LM) algorithm to implement the nonlinear multivariable optimization for azimuth/elevation angle-of-arrival (AOA) estimation based on the Capon beamforming algorithm.The formulation is based on the fact that the cost function of the Capon algorithm can be expressed in a least-squares form.The performance in terms of the root mean square error (RMSE) and the computational complexity is illustrated via numerical results.