Performance analysis of angle of arrival estimation algorithms in a multi source environment including mutual coupling effects and compensation techniques

The performances of two different angle of arrival estimation algorithms, phase interferometry and covariance based super resolution, and two different mutual coupling compensation methods, conventional and received mutual impedance, have been compared. Two different scenarios have been explored, firstly with a single source transmitter, and then with dual source transmitters. Different powers levels were used to estimate the performance of these algorithms in a multipath/multisource environment over a perfect ground plane. The results show greater accuracy using the covariance based technique, and also support the use of the received mutual impedance method for coupling compensation.