Methods for FMCW radar map georeferencing

Marion Jaud (1) , R. Rouveure (1) , P. Faure (1) , M.O. Monod (1)

1 UR TSCF - Technologies et systèmes d'information pour les agrosystèmes

In a context of mobile environment mapping, a vehicle-based radar system, K2Pi, has been developed. A mapping of the environment is carried out from the radar datasets. Given the specificities of radar maps, the main problem at this stage is to find a method to georeference these maps. This article proposes three radar map georeferencing methods. The first method is a typical manual selection of a set of control point pairs. The second method consists of matching the relative trajectory computed by a specific radar algorithm with a trajectory recorded from absolute DGPS recording. Finally, the third method, inspired by the image-to-image approach, is based on Fourier-Mellin transform which automatically registers the radar map with respect to a georeferenced aerial photograph. Successfully tested on radar datasets, this method could be applied to many other types of data.

Mots clés: RADAR; GEOREFERENCEMENT; CARTE; RADAR MAPPING; GEOLOCATION; FOURIER-MELLIN REGISTRATION

Domaines: Sciences de l'environnement

Marion Jaud, R. Rouveure, P. Faure, M.O. Monod. Methods for FMCW radar map georeferencing. ISPRS Journal of Photogrammetry and Remote Sensing, 2013, 84, p. 33 - p. 42. ⟨10.1016/j.isprsjprs.2013.07.002⟩. ⟨hal-00947621⟩