The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2023
Filed:
Aug. 25, 2020
Agency for Defense Development, Daejeon, KR;
Ajou University Industry-academic Cooperation Foundation, Gyeonggi-do, KR;
Jae Sung Lim, Gyeonggi-do, KR;
Ho Ki Baek, Gyeonggi-do, KR;
Jin Seok Lee, Gyeonggi-do, KR;
Kyung Woo Kim, Daejeon, KR;
Jae Hyun Ham, Daejeon, KR;
AGENCY FOR DEFENSE DEVELOPMENT, Daejeon, KR;
AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Gyeonggi-Do, KR;
Abstract
Provided is a method and apparatus for selecting an airborne position reference node. A weight center coordinate of the repeaters is calculated by using position coordinates of repeaters, a plane having a vector connecting the weight center coordinate and a position coordinate of a user as a normal vector is determined, and the position coordinates of the repeaters are orthographically projected onto the plane. A certain number of repeaters located farthest from the weight center coordinate of the repeaters are selected to be airborne position reference nodes, on the basis of the orthographically projected coordinates of the repeaters and the weight center coordinate.