Prospects of multiple global navigation satellite system tracking for formation flying in highly elliptical earth orbits

Kahr, Erin

doi:10.1504/ijspacese.2013.059267

Cited by 4 publications

(1 citation statement)

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“…While the defined space service volume and hardware with space flight heritage are GPS‐only, making use of the other constellations has already been shown to have significant benefits for GEO and HEO navigation . One possible source of navigation signals that has yet to be explored for use in HEO and GEO is the satellite‐based augmentation systems (SBAS).…”

Section: Introductionmentioning

confidence: 99%

An Analysis of SBAS Signal Reception in Space

2016

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WAAS, EGNOS, GAGAN, and MSAS data have been collected from the CanX‐2 CubeSat. The suitability of SBAS for navigation in geostationary orbits (GEO), where SBAS satellites may be permanently in view, was assessed. The analysis revealed that all tracked SBAS transmit enough power to be tracked over Earth's limb. GAGAN has the narrowest gain pattern, WAAS has a similar pattern to EGNOS but a 2–4 dB higher transmit power, and MSAS has the lowest signal power but more even global coverage, with stronger power transmitted towards the edge of the Earth. SBAS ranging typically agrees with GPS single‐point positions to within +/−10 m for WAAS and +/−20 m for MSAS and GAGAN. It was determined that the SBAS ranging capability is useable in GEO and other high orbits, provided that fast correction data are applied to the broadcast ephemeris, and the lower accuracies are accounted for. Copyright © 2016 Institute of Navigation

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Section: Introductionmentioning

confidence: 99%