Radar SLAM using visual features

  • Callmer J
  • Törnqvist D
  • Gustafsson F
  • et al.
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Abstract

A vessel navigating in a critical environment such as an archipelago requires very accurate movement estimates. Intentional or unintentional jamming makes GPS unreliable as the only source of information and an additional independent supporting navigation system should be used. In this paper, we suggest estimating the vessel movements using a sequence of radar images from the preexisting body-fixed radar. Island landmarks in the radar scans are tracked between multiple scans using visual features. This provides information not only about the position of the vessel but also of its course and velocity. We present here a navigation framework that requires no additional hardware than the already existing naval radar sensor. Experiments show that visual radar features can be used to accurately estimate the vessel trajectory over an extensive data set.

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Callmer, J., Törnqvist, D., Gustafsson, F., Svensson, H., & Carlbom, P. (2011). Radar SLAM using visual features. EURASIP Journal on Advances in Signal Processing, 2011(1). https://doi.org/10.1186/1687-6180-2011-71

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