@article{oai:ynu.repo.nii.ac.jp:00011352,
 author = {Nakamura, Shogo and Iwazaki, Sho and Ichige, Koichi},
 issue = {4},
 journal = {IEICE Transactions on Communications},
 month = {Apr},
 note = {Copyright(C)2021 IEICE},
 pages = {401--409},
 title = {Optimization and Hole Interpolation of 2-D Sparse Arrays for Accurate Direction-of-Arrival Estimation},
 volume = {E104.B},
 year = {2021}
}