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Simplified Orbit Determination Algorithm for Low Earth Orbit Satellites Using Spaceborne GPS Navigation Sensor Cover

Simplified Orbit Determination Algorithm for Low Earth Orbit Satellites Using Spaceborne GPS Navigation Sensor

Open Access
|Jun 2014

Abstract

In this paper, the main work is focused on designing and simplifying the orbit determination algorithm which will be used for Low Earth Orbit (LEO) navigation. The various data processing algorithms, state estimation algorithms and modeling forces were studied in detail, and simplified algorithm is selected to reduce hardware burden and computational cost. This is done by using raw navigation solution provided by GPS Navigation sensor. A fixed step-size Runge-Kutta 4th order numerical integration method is selected for orbit propagation. Both, the least square and Extended Kalman Filter (EKF) orbit estimation algorithms are developed and the results of the same are compared with each other. EKF algorithm converges faster than least square algorithm. EKF algorithm satisfies the criterions of low computation burden which is required for autonomous orbit determination. Simple static force models also feasible to reduce the hardware burden and computational cost.

DOI: https://doi.org/10.2478/arsa-2014-0007 | Journal eISSN: 2083-6104 | Journal ISSN: 1509-3859
Language: English
Page range: 81 - 99
Submitted on: Jan 15, 2014
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Accepted on: May 16, 2014
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Published on: Jun 6, 2014
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2014 Sandip Tukaram Aghav, Shashikala Achyut Gangal, published by Polish Academy of Sciences, Space Research Centre
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.