Localization of Sources in the Finite Distance Using MUSIC Algorithm by the Spherical Mode Vector

摘要

Localization of sources in finite distance is applicable to the problem of the unnecessary radiation from circuit board. MUSIC algorithm has high reputation as estimation of DOA on wave from distant place. The arrival wave of finite distance is spherical wave; therefore cannot extend the standard MUSIC algorithm. In this paper, the estimation in a finite distance is performed using the MUSIC with the spherical mode vector. Moreover, we assumed the application to a circuit board and performed 2-dimensional position estimation using the planar array antennas.