Abstract
In this paper, we apply Wide-Field integration (WFI) of optic flow for the state estimation of a planetary landing vehicle. This study utilizes nonlinear expressions for the Fourier coefficients of the optic flow instead of linearized expressions. By using the nonlinear expressions, it is shown that the vehicle's attitude angles can be estimated as well as its velocity components. First this paper deals with a two-dimensional model and explains how to estimate state variables. Then two three-dimensional models are discussed. Numerical simulation results are shown to evaluate the estimation accuracy.
Original language | English |
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Title of host publication | Space for Our Future - Advances in the Astronautical Sciences: Proceedings of the 13th International Conference of Pacific-Basin Societies, ISCOPS 2012 |
Pages | 57-69 |
Number of pages | 13 |
Volume | 146 |
Publication status | Published - 2013 |
Event | 13th International Space Conference of Pacific-Basin Societies, ISCOPS 2012 - Kyoto, Japan Duration: May 15 2012 → May 18 2012 |
Other
Other | 13th International Space Conference of Pacific-Basin Societies, ISCOPS 2012 |
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Country | Japan |
City | Kyoto |
Period | 5/15/12 → 5/18/12 |
All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Space and Planetary Science