A METHOD OF SELECTING SATELLITE FOR DETECTING FAULT OF SATELLITE'S EPHEMERIS, A METHOD FOR DETECTING FAULT OF SATELLITE'S EPHEMERIS AND AN APPARATUS THEREFOR

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A METHOD OF SELECTING SATELLITE FOR DETECTING FAULT OF SATELLITE'S EPHEMERIS, A METHOD FOR DETECTING FAULT OF SATELLITE'S EPHEMERIS AND AN APPARATUS THEREFOR

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LEE KI HOON / LEE YOUNG JAE / SUNG SANG KYUNG / AHN JONG SUN / WON DAE HEE / JOO JUNG MIN / HEO MOON BEOM

The present invention relates to a method for selecting a satellite for detecting a fault of a satellite ephemeris, and a method and an apparatus for detecting a fault of a satellite ephemeris. According to an embodiment of the present invention, the method for selecting a satellite for detecting a fault of a satellite ephemeris comprises: a step (S100) of selecting a satellite (C) to be inspected; and a step (S200) of selecting a surrounding satellite group (A, B) which maximally sensitizes performance for detecting a fault of an ephemeris of the satellite (C) to be inspected. According to the present invention, an inter-satellite link (ISL) technique expected to be applied to a future satellite navigation system is used to detect whether an ephemeris of a navigation satellite fails. Since a measured value of an inter-satellite distance calculated by an inter-satellite link does not pass through the earth atmosphere, accuracy of detecting whether the ephemeris of the satellite fails can be increased.

본 발명은 위성 궤도력 고장 검출을 위한 위성 선정방법, 위성 궤도력 고장 검출 방법 및 장치에 관한 것이다. 본 발명의 일 실시 예에 따른 위성 궤도력 고장 검출을 위한 위성 선정방법은 검사대상위성(C)을 선정하는 단계(S100); 및 상기 검사대상위성(C)의 궤도력 고장 검출 성능을 가장 민감하게 하는 주변위성군(A, B)을 선정하는 단계(S200);를 포함한다. 본 발명에 따르면, 미래 위성항법시스템에 적용이 예상되는 위성간 통신(ISL: Inter-Satellite Link) 기술을 활용하여, 항법위성의 궤도력의 고장 여부를 검출할 수 있으며, 위성간 통신을 통해 산출되는 위성간 거리 측정치는 지구 대기를 통과하지 않으므로 위성 궤도력의 고장 여부 검출의 정확도를 높일 수 있다.

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Title :

A METHOD OF SELECTING SATELLITE FOR DETECTING FAULT OF SATELLITE'S EPHEMERIS, A METHOD FOR DETECTING FAULT OF SATELLITE'S EPHEMERIS AND AN APPARATUS THEREFOR

Additional title:

위성 궤도력 고장 검출을 위한 위성 선정방법, 위성 궤도력 고장 검출 방법 및 장치

Contributors:

LEE KI HOON (author) / LEE YOUNG JAE (author) / SUNG SANG KYUNG (author) / AHN JONG SUN (author) / WON DAE HEE (author) / JOO JUNG MIN (author) / HEO MOON BEOM (author)

Publication date :

2016-09-19

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Korean

Classification :

IPC:

B64G Raumfahrt , COSMONAUTICS