This study presents the orbit determination (OD) of a candidate Korea Regional Navigation Satellite System (KRNSS) using both inter-satellite links (ISLs) and ground observations. The candidate constellation of KRNSS is first introduced. The OD algorithm based on both ISL and ground observation is developed, and consists of three main components: dynamic model for Korean navigation satellites, measurement model for ISLs and ground observations, and the batch least-square filter for estimating OD parameters. As numerical simulations are performed to analyze the OD performances, the present study focuses on investigating the effects of ISL measurements on the OD accuracy of KRNSS. Simulation results show that the use of ISLs can considerably enhance the OD accuracy to one meter (design preference) under certain distributions of ground stations.
|Number of pages||7|
|Journal||International Journal of Aeronautical and Space Sciences|
|Publication status||Published - 2017 Jun|
Bibliographical noteFunding Information:
This research was supported by National GNSS Research Center (NGRC) program funded by the Defense Acquisition
© The Korean Society for Aeronautical & Space Sciences.
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Materials Science(all)
- Aerospace Engineering
- Electrical and Electronic Engineering