... DOA,frequency, and polarization based on cumulants and UCA,”Journal of Systems Engineering and Electronics, vol. 18, no. 4,pp. 704–709, 2007.[15]K.C.Ho,K.C.Tan,andA.Nehorai,“Estimatingdirec-tions of ... 2004.[20]Y.Wu,H.C.So,C.Hou,andJ.Li,“Passivelocalizationofnear-field sources with a polarization sensitive array,” IEEETransactions on Antennas and Propagation, vol. 55, no. 8,pp. 2402–2408, 2007.[21] M. K anda and ... regarded as an extension of the subspace-basedmethod without eigendecomposition (SUMWE) [26]tothecase of the EmVS arrays. The SUMWE is also a PM-basedmethod, which estimates the DOA of coherent...