Conference papers
Test of GOCE EGG data for spacecraft positioning
Abstract : Consisting of three pairs of accelerometers, the gradiometer is an ideal sensor for passive navigation. This paper proposes the use of gravity gradients for spacecraft positioning and the real-world GOCE EGG data are tested to investigate the feasibility. The basic observation equation is first formulated by considering white noise only, and a Least-Square position searching method is developed. The raw GGT measurements are preprocessed before the test in order to remove the low-frequency errors. By using a 120-degree EGM2008 gravity model as a reference map, position solutions with an accuracy of hundreds of meters are obtained. A further semi-simulation study shows that an accuracy of tens of meters could be achieved with a better gradiometer.
https://hal-enac.archives-ouvertes.fr/hal-01159184
Contributor : Laurence Porte <>
Submitted on : Tuesday, June 2, 2015 - 5:13:06 PM
Last modification on : Wednesday, July 24, 2019 - 11:50:02 PM
Document(s) archivé(s) le : Monday, April 24, 2017 - 11:24:01 PM
Contributor : Laurence Porte <>
Submitted on : Tuesday, June 2, 2015 - 5:13:06 PM
Last modification on : Wednesday, July 24, 2019 - 11:50:02 PM
Document(s) archivé(s) le : Monday, April 24, 2017 - 11:24:01 PM
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