公开(公告)号：US11926441B2

公开(公告)日：2024-03-12

申请号：US17555848

申请日：2021-12-20

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Sung Hyuck Im ,  Jun Seong Lee ,  Kee Joo Lee ,  Jae Sung Park

IPC: B64G1/28 ,  B64G1/00 ,  B64G1/10 ,  B64G1/24

CPC classification number: B64G1/285 ,  B64G1/002 ,  B64G1/10 ,  B64G1/242

Abstract: An orbit transition apparatus that transitions an orbit of a payload in outer space includes a rotating body, an adapter disposed on a center part of the rotating body for docking a payload, a launch module disposed outside of the rotating body for launching the payload, and a thruster for rotating the rotating body. The launch module may launch the payload to a target orbit.

公开(公告)号：US20220258883A1

公开(公告)日：2022-08-18

申请号：US17546400

申请日：2021-12-09

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Sung Hyuck Im ,  Jun Seong Lee ,  Kee Joo Lee ,  Jae Sung Park

IPC: B64F1/02

Abstract: A projectile landing apparatus for retrieving a projectile includes a plurality of grippers disposed to be spaced apart. The plurality of grippers may include a support, a guide having one side connected to one end of the support, and a shock absorber having one end connected to the other end of the support and having the other end connected to the guide. The plurality of grippers may guide a projectile, buffer a load, and safely retrieve the projectile.

公开(公告)号：US11088721B2

公开(公告)日：2021-08-10

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.

公开(公告)号：US11691759B2

公开(公告)日：2023-07-04

申请号：US17546400

申请日：2021-12-09

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Sung Hyuck Im ,  Jun Seong Lee ,  Kee Joo Lee ,  Jae Sung Park

IPC: B64F1/02

CPC classification number: B64F1/0297

Abstract: A projectile landing apparatus for retrieving a projectile includes a plurality of grippers disposed to be spaced apart. The plurality of grippers may include a support, a guide having one side connected to one end of the support, and a shock absorber having one end connected to the other end of the support and having the other end connected to the guide. The plurality of grippers may guide a projectile, buffer a load, and safely retrieve the projectile.

公开(公告)号：US11294071B2

公开(公告)日：2022-04-05

申请号：US15777035

申请日：2016-11-18

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Sung Hyuck Im ,  Moon Beom Heo ,  Eun Sung Lee

IPC: G01S19/42 ,  G01S19/03 ,  H04W64/00 ,  G01S5/02 ,  G01S19/14 ,  G01S5/14 ,  G01S1/68 ,  G01S5/00 ,  B64C39/02

Abstract: An apparatus for determining a precise location including: a plurality of unmanned aerial vehicles each having a first broadband signal module and a global position system GPS receiver attached thereonto and flying in the air; and a terminal provided at a location and determining the location by communication with the first broadband signal modules. In addition, a method for determining a precise location including: respective GPS receivers receiving GPS signals from artificial satellites and detecting locations of each of the plurality of unmanned aerial vehicles, transmiting locations of the unmanned aerial vehicles and distances between the unmanned aerial vehicles and the terminal and determining a location of the terminal using information received from the first broadband signal modules.

公开(公告)号：US11194012B2

公开(公告)日：2021-12-07

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 Won Lim ,  Eun Seong Son ,  Koon Tack Kim

IPC: G01S3/02 ,  G01S5/06 ,  G01S5/02 ,  G01S19/01 ,  G01S5/04 ,  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.