Orbit Estimation of GEO-missions Applicable to NavIC Data

Indian Regional Navigation Satellite System (IRNSS) is India’s own navigation system. It is a seven satellite constellation with the operational name NavIC – Navigation with Indian Constellation. Satellite Orbit determination (OD) estimates the position and velocity of orbiting satellite. The two ma...

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Bibliographic Details
Published in:International journal of innovative technology and exploring engineering 2020-02, Vol.9 (4), p.253-256
Main Authors: S., Varsha H., B, Shreyanka, Vighnesam, Dr. N. V., Sudha, Dr. K. L.
Format: Article
Language:English
Online Access:Get full text
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Summary:Indian Regional Navigation Satellite System (IRNSS) is India’s own navigation system. It is a seven satellite constellation with the operational name NavIC – Navigation with Indian Constellation. Satellite Orbit determination (OD) estimates the position and velocity of orbiting satellite. The two main estimation algorithms widely used in Global Navigation Satellite Systems (GNSS) are Extended Kalman Filter (EKF) and Least Squares. This study on Batch Least Squares (BLS) - Differential Correction (DC) algorithm demonstrates precise orbit estimation of any GEO missions using only range measurements with crude initial state parameters. Currently, the study is based on simulated inputs and the satellite orbits are successfully estimated with position error in sub-centimeters level. Further, the work will be extended to live data of IRNSS satellites.
ISSN:2278-3075
2278-3075
DOI:10.35940/ijitee.D1349.029420