Characterisation of the Tri-Modal Discrete Sea Clutter Model

Luke Rosenberg (1) , Sébastien Angelliaume (2)

1 Defence Science and Technology Group
2 DEMR, ONERA [Salon-de-Provence]

Accurately representing the sea clutter amplitude or intensity distribution is important for achieving a constant false alarm rate in a detection scheme. This can be difficult as the backscatter statistics change with the sea surface characteristics, the geometry of acquisition and the radar parameters. Recently, a new compound distribution model has been proposed which models the sea clutter texture discretely, with each component representing different scattering components. In this paper, the tri-modal discrete texture (3MD) model is explored using real aperture data from the Defence Science and Technology Group Ingara radar and synthetic aperture radar data from the French Aerospace Laboratory (ONERA) SETHI radar. Both the model fitting accuracy and the variation of the texture components are studied to better understand how to relate the model to the underlying sea-clutter characteristics.

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Luke Rosenberg, Sébastien Angelliaume. Characterisation of the Tri-Modal Discrete Sea Clutter Model. RADAR2018, Aug 2018, BRISBANE, Australia. ⟨hal-02183176⟩