TY - GEN
T1 - State estimation of planetary landing vehicles with wide-field integration of optic flow
AU - Sakamoto, Hirofumi
AU - Kanazawa, Takumi
AU - Hokamoto, Shinji
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84876398096&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876398096&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84876398096
SN - 9780877035916
T3 - Advances in the Astronautical Sciences
SP - 57
EP - 69
BT - Space for Our Future - Advances in the Astronautical Sciences
T2 - 13th International Space Conference of Pacific-Basin Societies, ISCOPS 2012
Y2 - 15 May 2012 through 18 May 2012
ER -