US 12,262,220 B2
Radio wave emission source visualization apparatus and band expansion method
Hidemi Oki, Ashigarashimo Kanagawa (JP); Katsuro Kasuga, Kawasaki Kanagawa (JP); and Terumitsu Murakami, Kawasaki Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki Kanagawa (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki Kanagawa (JP)
Filed on Aug. 31, 2022, as Appl. No. 17/823,934.
Application 17/823,934 is a continuation of application No. PCT/JP2021/008795, filed on Mar. 5, 2021.
Prior Publication US 2022/0417766 A1, Dec. 29, 2022
Int. Cl. H04W 16/22 (2009.01); H04B 7/06 (2006.01); H01Q 3/24 (2006.01)
CPC H04W 16/22 (2013.01) [H04B 7/0602 (2013.01); H01Q 3/247 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A radio wave emission source visualization apparatus comprising:
an antenna including antenna elements of N rows by N columns arranged in an array and configured to capture an incoming wave, wherein N is a natural number of 2 or more;
a selector switch configured to select an antenna element group from a plurality of different antenna element groups each of the antenna element groups including antenna elements of M rows by M columns from the antenna elements of N rows by N columns according to a band of the incoming wave, wherein M is a natural number less than N;
an estimation processor configured to estimate an incoming direction of the incoming wave from an element signal of each of the antenna elements included in the selected antenna element group;
a camera configured to acquire image data by imaging an orientation direction of an aperture of the antenna; and
map displaying processor configured to create a visualized image by visually synthesizing the estimated incoming direction with the image data.
 
6. A method for expanding a band of a radio wave emission source visualization apparatus comprising antenna elements of N rows by N columns arranged in an array and an antenna configured to capture an incoming wave, the method comprising:
selecting, by the radio wave emission source visualization apparatus, an antenna element group from a plurality of different antenna element groups each including antenna elements of M rows by M columns from the antenna elements of N rows by N columns according to a band of the incoming wave, wherein N is a natural number of 2 or more, and M is a natural number less than N;
estimating, by the radio wave emission source visualization apparatus, an incoming direction of the incoming wave from an element signal of each of the antenna elements included in the selected antenna element group;
acquiring, by the radio wave emission source visualization apparatus, image data by imaging an orientation direction of an aperture of the antenna by an imager; and
creating, by the radio wave emission source visualization apparatus, a visualized image by visually synthesizing the estimated incoming direction with the image data.