Abstract
Through the example of SPOT satellites, this paper analyzes the relationship between the view vector error and the error of direct geolocation. A precise estimation formula for view vector error is derived theoretically. Based on this formula, a high-precision direct geolocation method is proposed, together with an exact, step-by-step procedure. With only a few ground control points (GCPs), this method can estimate precisely the view vector error, achieving the purpose of precise, zero-control-point geolocation of other scenes of the same orbit in a certain time interval. The results of experiments and comparative analysis show that this method is an effective, high-precision direct geolocation method with sparse GCPs.
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© 2012 Springer-Verlag GmbH Berlin Heidelberg
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Yang, A., Weidong, S., Hongbing, M. (2012). High-Precision Direct Geolocation Based on Estimation of View Vector Error. In: Qian, Z., Cao, L., Su, W., Wang, T., Yang, H. (eds) Recent Advances in Computer Science and Information Engineering. Lecture Notes in Electrical Engineering, vol 128. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25792-6_87
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DOI: https://doi.org/10.1007/978-3-642-25792-6_87
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