JournalComputers and Mathematics with Applications (0898-1221), 80(12), 2811 ~ 2829
Enrollment typeSCIE
publication date 20201215
The direct sampling method (DSM) in limited-aperture inverse scattering problems for transverse electric (TE) polarization is considered. Based on the asymptotic expansion formula in the presence of small targets, we demonstrate that the indicator function of DSM can be represented by an infinite series of Bessel functions of integer order and correspondingly examine various properties of DSM.