Novel concept of satellite manoeuvre planning using graph theoretical techniques
| Autor: | Ciara McGrath, Ruaridh Clark, Malcolm Macdonald |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Atmospheric Science
Disaster monitoring 010504 meteorology & atmospheric sciences Manoeuvre Computer science TL Real-time computing Aerospace Engineering Thrust ComputerApplications_COMPUTERSINOTHERSYSTEMS Propulsion 01 natural sciences Responsive Graph On demand 0103 physical sciences 010303 astronomy & astrophysics 0105 earth and related environmental sciences Constellation Spacecraft business.industry Astronomy and Astrophysics Geophysics Space and Planetary Science General Earth and Planetary Sciences Graph (abstract data type) Satellite business |
| Zdroj: | McGrath, C N, Clark, R A & Macdonald, M 2020, ' Novel concept of satellite manoeuvre planning using graph theoretical techniques ', Advances in Space Research, vol. 67, no. 11, pp. 3775-3784 . https://doi.org/10.1016/j.asr.2020.06.008 |
| ISSN: | 0273-1177 |
| Popis: | Manoeuvrable, responsive satellite constellations that respond to real time events could provide data on demand for time-critical tasks, such as disaster monitoring and relief efforts. The authors demonstrate the feasibility of such a system by expanding on a fully analytical method for designing responsive spacecraft manoeuvres using low thrust propulsion. These manoeuvres are perceived as a graph that enables efficient exploration and optimised selection of favourable routes that achieve mission goals while highlighting resilience and redundancy in the mission’s execution. A case study is presented that considers four satellites required to provide flyovers of two targets, with an associated graph of 10,839 possible manoeuvres. Investigation of the graph highlights that a good, but not minimum time, solution can allow the system to perform well, while also providing greater resilience to changes in mission priorities and errors in execution. This analytical approach enables operators to trade-off between a loss of time by using only one satellite versus the disruption of moving multiple satellites for a potentially faster response. The impact of varying mission capabilities, such as using fewer satellites, smaller swath width or less propellant, can be evaluated by reducing the graph without recalculating manoeuvre options. |
| Databáze: | OpenAIRE |
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