Navigation with SAR and 3D-Map Aiding
2015 (English)In: Proceedings of the 18th International Conference on Information Fusion (Fusion), IEEE , 2015, 1505-1510 p.Conference paper (Refereed)
This paper presents a method for matching spotlight Synthetic Aperture Radar (SAR) images with a georeferenced 3D-map as means for navigational aid. A hypothesis of the flying platform's absolute position, velocity and direction - which later can be used to correct the inertial navigation system - is attained by image matching and optimization. A projective model with 6 DoF is used to create a simulated SAR image from a 3D map. The parameters of the projective model represents the most important of the platform's navigation state, and these are adjusted by Chamfer matching the captured SAR image to simulated ones. The performance is demonstrated on real spotlight SAR images and 3D-map, and the error is shown to be only a few pixels in average, which in our case is about 3 meters.
Place, publisher, year, edition, pages
IEEE , 2015. 1505-1510 p.
image matching; inertial navigation; optimisation; radar imaging; synthetic aperture radar; 3D map aiding; Chamfer matching; SAR images; image matching; inertial navigation system; navigational aid; optimization; projective model; synthetic aperture radar; Image edge detection; Navigation; Optimization; Radar antennas; Radar imaging; Synthetic aperture radar
Control Engineering Signal Processing
IdentifiersURN: urn:nbn:se:liu:diva-122005ISBN: 978-0-9824-4386-6OAI: oai:DiVA.org:liu-122005DiVA: diva2:860895
18th International Conference on Information Fusion (Fusion), Washington D.C., USA, July 6-9 2015