Two-Dimensional AOA Estimation Based on a Constant Modulus Algorithm

Saleh O. Al-Jazzar, Zoubir Hamici, Sami Aldalahmeh
2017 International Journal of Antennas and Propagation  
We propose a two-dimensional (2D) angle of arrival (AOA) estimator using the algebraic constant modulus algorithm (ACMA). This algorithm was originally introduced to estimate the one-dimensional (1D) AOA. An extension to estimate and automatically pair the elevation and azimuth angles for different sources is derived and proved in this paper. The ACMA method factorises a matrix into two different matrices; one is of constant modulus and contains the azimuth AOA information; however the second
more » ... owever the second was previously ignored. In this paper we will prove that this second matrix contains the elevation AOA information. Thus, 2D AOA estimation is proved possible using the ACMA method. Simulation results are presented to illustrate the proposed method's performances under different conditions.
doi:10.1155/2017/3214021 fatcat:67izw4gu5ngg7obqb5ur7fflxa