Direction-of-Arrival Estimation of Electromagnetic Wave Impinging on Spherical Antenna Array in the Presence of Mutual Coupling Using a Multiple Signal Classification Method

A spherical antenna array (SAA) is the configuration of choice in obtaining an with isotropic characteristics. An SAA has capacity to receive electromagnetic wave (EM) equal intensity irrespective direction-of-arrival (DoA) and polarization. Therefore, DoA estimation waves impinging on unknown mutual coupling needs be considered. In domain, traditional multiple signal classification algorithm (SH-MUSIC) faced a computational complexity problem. This paper presents one-dimensional MUSIC method (1D-MUSIC) for azimuth elevation angles. intermediate mapping matrix that exists between Fourier series harmonic function designed, Vandermonde structure used realization polynomial rooting technique. can computed prior estimation, it only configuration. Based matrix, 2-D angle search transformed into two 1-D findings. Employing features series, root polynomials are designed angles, spontaneously. The developed avoids spectral search, angles paired automation. Both numerical simulation results, results from experimental measured data (i.e., effect incorporated), show validity, potency, potential practical application algorithm.