HUANG Xian-lin, LIU Jia-qi, LU Hong-qian. Application of polarized-light-aided attitude determination in optical-flow-based autonomous navigation[J]. 2011, 30(1): 137-140+144.
HUANG Xian-lin, LIU Jia-qi, LU Hong-qian. Application of polarized-light-aided attitude determination in optical-flow-based autonomous navigation[J]. 2011, 30(1): 137-140+144. DOI: 10.13873/j.1000-97872011.01.008.
Based on the characteristics of polarized light distribution in the air and navigation principle
a three-channel polarized light measurement platform is built up to collect polarization information.Optical flow can be determined by computing the ratio of spatial to temporal intensity gradients of the visual image’s features.Polarized light information and optical flow information through Kalman filter is integrated to construct navigation system based on GPS
INS
polarized light and optical flow.The results of simulations and estimations of altitude
attitude angles
and velocity error of aircraft show that this method has high accuracy
and it provide a new navigation path to meet the challenges of Mars for UAVs.