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Tytuł pozycji:

ATTITUDE RESTITUTION FOR MULTISPECTRAL EARTH OBSERVATION SATELLITE USING SPACE TRIANGULATION TECHNIQUE

Tytuł:
ATTITUDE RESTITUTION FOR MULTISPECTRAL EARTH OBSERVATION SATELLITE USING SPACE TRIANGULATION TECHNIQUE
Autorzy:
N. Bernardini
R. Binet
B. Vidal
Temat:
Technology
Engineering (General). Civil engineering (General)
TA1-2040
Applied optics. Photonics
TA1501-1820
Źródło:
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-1-2020, Pp 141-149 (2020)
Wydawca:
Copernicus Publications, 2020.
Rok publikacji:
2020
Kolekcja:
LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Applied optics. Photonics
Typ dokumentu:
article
Opis pliku:
electronic resource
Język:
English
ISSN:
2194-9042
2194-9050
Relacje:
https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/V-1-2020/141/2020/isprs-annals-V-1-2020-141-2020.pdf; https://doaj.org/toc/2194-9042; https://doaj.org/toc/2194-9050
DOI:
10.5194/isprs-annals-V-1-2020-141-2020
Dostęp URL:
https://doaj.org/article/2aeb7ce1f8614312a6a92ebaa9200362  Link otwiera się w nowym oknie
Numer akcesji:
edsdoj.2aeb7ce1f8614312a6a92ebaa9200362
Czasopismo naukowe
Earth observation satellites are equipped with navigation components (star trackers, gyroscopes) which estimates the attitude of the satellite, corresponding to its orientation in the orbital reference frame. This equipment is essential for the localisation of the images which is done a posteriori and for the registration of the different images for a pushbroom sensor. This concerns both the registration of the spectral bands and the registration of multi-temporal series. However, the required accuracy is not always compatible with the performance of the attitude restitution. Moreover, some specific applications need more stringent geometric control even if requirements are met. With a multi-spectral pushbroom instrument, the same object on ground is seen as many times as number of spectral bands at different time instants: the attitude profile of the platform can be completely reconstructed from the results of the mapping of the different spectral bands. An attitude reconstruction method is proposed based on space triangulation inversion technique. The framework of this study is low-frequencies noise perturbations applied to Venμs satellite. Cubic splines are used for the attitude error profile, with 60 free parameters. Provided the physical model is representative, we show on two test cases that the convergence is very good. The band registration quality is used as a proxy to assess the performances. Residuals errors are less than 0.05 pixel for all tested band couples.

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