The need for precise orbit determination (POD) has grown significantly due to the increased
amount of space-based activities taking place at an accelerating pace. Accurate POD …

Spaceborne GPS receivers are used for real-time navigation by most low Earth orbit (LEO)
satellites. In general, the position and velocity accuracy of GPS navigation solutions without …

In the framework of autonomous spacecraft navigation, this manuscript proposes a novel
vision-based terrain relative navigation (TRN) system called FederNet. The developed …

An algorithm for real‐time and onboard orbit determination applying the Extended Kalman
Filter (EKF) method is developed. Aiming at a very simple and still fairly accurate orbit …

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 …

Two methods to evaluate the state transition matrix are implemented and analyzed to verify
the computational cost and the accuracy of both methods. This evaluation represents one of …

Spaceborne GPS receiver is used for not only a primary tracking system for precision orbit
determination on ground but also a core equipment to provide real-time ephemeris for …

This paper is dedicated to determining the orbit of a satellite by using Unscented Kalman
Filter (UKF), in which, a GNSS is used as the observation sensor. During this goal, firstly we …

Global navigation satellite system (GNSS) is of significance for orbit determination of Low
Earth Orbit Satellites. Due to relatively low accuracy of code observations and high …

This work describes a process of creating and demonstrates a software framework
supporting teams building small satellites-typically CubeSat student projects-during initial …