Direction of Arrival estimation using Maximum Likelihood Method and the effect of element selection on system performance
M. H. Moussa, Julia Dietrich, Abdel Razik Sebak · 2005
The integration between NEC2 and Matlab created an environment similar to the environment an actual array would operate in by accounting for mutual coupling between the array elements. Changing the elements type to more directive elements enhanced the MSE performance in all cases. The 5-element linear λ/2 dipole array possessed a very poor performance when the incident signals where 2° apart whereas the proposed elements-i.e. microstrip patches showed great potential in determining the DoA. This proves that optimum selection criteria should be adopted in conjunction with the DoA estimation algorithm in order to minimize the estimation MSE.