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2021•Proceedings of the Satellite Division's International Technical Meeting (Online)/Proceedings of the Satellite Division's International Technical Meeting (CD-ROM)Requires access

GDOP of Navigation using Pseudorange and Doppler Shift from a LEO Constellation

Brian McLemore, Mark L. Psiaki

Open publisher page 12 citations

Abstract

A study is conducted on the Geometric Dilution of Precision (GDOP) for a navigation system leveraging carrier Doppler shift and pseudorange measurements from new massive Low Earth Orbit (LEO) constellations. The study develops a generalized GDOP analysis that can be used with both pseudorange and carrier Doppler shift data simultaneously. With the large number of LEO satellites being launched in the coming years, a multitude of signals that could be used for navigation will become available. The suitability of different constellations for navigation is investigated. Guidelines are developed that aid in determining when and how to effectively use the developed GDOP analysis.

About this research paper

What this paper is about

A study is conducted on the Geometric Dilution of Precision (GDOP) for a navigation system leveraging carrier Doppler shift and pseudorange measurements from new massive Low Earth Orbit (LEO) constellations. The study develops a generalized GDOP analysis that can be used with both pseudorange and carrier Doppler shift data simultaneously. With the large number of LEO satellites being launched in the coming years, a multitude of signals that could be used for navigation will become available. The suitability of different constellations for navigation is investigated. Guidelines are developed that aid in determining when and how to effectively use the developed GDOP analysis.

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OpenAlex reports 12 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A study is conducted on the Geometric Dilution of Precision (GDOP) for a navigation system leveraging carrier Doppler shift and pseudorange measurements from new massive Low Earth Orbit (LEO) constellations. The study develops a generalized GDOP analysis that can be used with both pseudorange and carrier Doppler shift data simultaneously. With the large number of LEO satellites being launched in the coming years, a multitude of signals that could be used for navigation will become available. The suitability of different constellations for navigation is investigated. Guidelines are developed that aid in determining when and how to effectively use the developed GDOP analysis.

Key concepts: Dilution of precision, Pseudorange, Doppler effect, Constellation, Computer science, Satellite navigation, Real-time computing, Remote sensing

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