Title :
Quaternion-base direct geo-referencing algorithm for ISSAC
Author :
Dou, Changyong ; Guo, Huadong ; Zhang, Xiaodong ; Yang, Huaining
Author_Institution :
Center for Earth Obs. & Digital Earth, Beijing, China
Abstract :
The International Space Station Agriculture Camera (ISSAC), Sponsored by the National Aeronautics and Space Administration´s (NASA) Education Office and developed by University of North Dakota, aims to demonstrate the applications of precision farming and natural resource management from the International Space Station (ISS). With a designed Ground Sampling Distance (GSP) of ~20 meters, an accurate geo-referencing algorithm is important for near-real time delivery of images that can be used immediately. One outstanding feature of ISSAC is its tilting capability in cross-track direction so that a wide area can be covered. At a relatively low altitude, the ISS, where the ISSAC will be hosted, experiences a large variation in attitude. Additionally, the optics window on ISS where the ISSAC sees through is not at the center of mass of the ISS. All these factors need to be taken care of in the algorithm. Evaluated by the commercial navigation software, Satellite Tool Kit (STK, Analytical Graphics, Inc.), the proposed algorithm can achieve theoretical accuracy within 0.5 meters.
Keywords :
farming; geophysical image processing; geophysical techniques; natural resources; ISSAC; International Space Station; International Space Station Agriculture Camera; National Aeronautics and Space Administration Education Office; Satellite Tool Kit; University of North Dakota; commercial navigation software; cross-track direction; ground sampling distance; natural resource management; near-real time delivery; optic window; precision farming; quaternion-base direct georeferencing algorithm; tilting capability; Earth; Educational institutions; International Space Station; Quaternions; Remote sensing; Space vehicles; Vectors; ISSAC; geo-referencing; quaternion;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6352338