公开(公告)号：US20190011525A1

公开(公告)日：2019-01-10

申请号：US16065825

申请日：2016-12-21

Applicant: Korea Aerospace Research Institute

Inventor： Sung Hyuck IM ,  Moon Beom HEO ,  Se Bum CHUN ,  Deok Wo LIM ,  Eun Seong SON ,  Koon Tack KIM

IPC: G01S5/06 ,  G01S5/02 ,  G01S5/00

Abstract: Provided is a radio source position estimation system including a plurality of radio transmission devices spaced a predetermined distance apart from one another and configured to transmit radio frequency (RF) signals received from an arbitrary radio source and a central radio reception device configured to estimate a position of the radio source using the RF signals received from at least three radio transmission devices.

公开(公告)号：US20210075466A1

公开(公告)日：2021-03-11

申请号：US16627749

申请日：2018-08-13

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Sung Hyuck IM ,  Se Bum CHUN ,  Moon Beom HEO

IPC: H04B1/69 ,  H04B7/185

Abstract: The present invention relates to a device for operating a navigation satellite on the basis of a code division transmission array antenna and a method for operating a navigation satellite. The device for operating a navigation satellite on the basis of a code division transmission array antenna, according to the present invention, comprises: a code generation unit for allocating a spread spectrum code to each of a plurality of antennas; a determination unit for determining, as transmission-end antennas, at least some of the plurality of antennas, to which different spread spectrum codes are allocated; and a processing unit, which arranges each of the transmission-end antennas at predetermined coordinates such that a plurality of signals transmitted from the transmission-end antennas are transmitted to reception-end antennas through multiple paths.