Design and Simulation of Regional Navigation Constellation with Optimized Mean DOP based on Hybrid GEO and IGSO Satellites

Published 2019-01-01 From Embry-Riddle Aeronautical University 2 authors

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Attribution

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Abstract

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In this article, achieving an optimal layout of satellite constellation has been investigated with the aim of navigation (positioning) and with the least amount of error in a region coverage. In navigation, a parameter defined as DOP specifies influences of the geometry of satellite placement in space on position error. Less DOP means more precise navigation, and an attempt has been made in this study to minimize it. In the optimization phase, using genetic algorithm, the number of moments in which coverage is less than four reached zero and then the DOP parameter was minimized. Subsequently, the issue was studied by applying constraints on various orbital elements each time with a certain number of satellites (6 or 7), and the different results were analyzed and compared with each other as well as other navigational systems.

Authors

keyvani, firooz Embry-Riddle Aeronautical University
Torabi, Seyed Hosein Embry-Riddle Aeronautical University

Keywords

satellite
constellation
regional navigation
DOP
Genetic algorithm
Navigation, Guidance, Control and Dynamics

Citation: keyvani, firooz, Torabi, Seyed Hosein (2019). Design and Simulation of Regional Navigation Constellation with Optimized Mean DOP based on Hybrid GEO and IGSO Satellites. Embry-Riddle Aeronautical University. Embry-Riddle Scholarly Commons ID oai:commons.erau.edu:ijaaa-1307. https://commons.erau.edu/ijaaa/vol6/iss2/6 ↗