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논문 기본정보
Laser-based Relative Navigation Using GPS Measurements for Spacecraft Formation Flying
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Journal of astronomy and space sciences |
| ISSN | 2093-5587,2093-1409 |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Lee, Kwangwon,Oh, Hyungjik,Park, Han-Earl,Park, Sang-Young,Park, Chandeok |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2015-01-01 |
| 초록 | This study presents a precise relative navigation algorithm using both laser and Global Positioning System (GPS) measurements in real time. The measurement model of the navigation algorithm between two spacecraft is comprised of relative distances measured by laser instruments and single differences of GPS pseudo-range measurements in spherical coordinates. Based on the measurement model, the Extended Kalman Filter (EKF) is applied to smooth the pseudo-range measurements and to obtain the relative navigation solution. While the navigation algorithm using only laser measurements might become inaccurate because of the limited accuracy of spacecraft attitude estimation when the distance between spacecraft is rather large, the proposed approach is able to provide an accurate solution even in such cases by employing the smoothed GPS pseudo-range measurements. Numerical simulations demonstrate that the errors of the proposed algorithm are reduced by more than about 12% compared to those of an algorithm using only laser measurements, as the accuracy of angular measurements is greater than $0.001^{ circ}$ at relative distances greater than 30 km. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201535151810324 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
|---|---|
| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | formation flying,global positioning system (GPS) measurement,laser measurement,relative navigation,extended Kalman filter (EKF) |