Identification of maritime target objects from high resolution TerraSAR-X data using SAR simulation

Harald Anglberger; Timo Kempf; Manfred Hager; Rainer Speck; Helmut Suess

doi:10.1117/12.2051152

29 May 2014 Identification of maritime target objects from high resolution TerraSAR-X data using SAR simulation

Harald Anglberger, Timo Kempf, Manfred Hager, Rainer Speck, Helmut Suess

Proceedings Volume 9077, Radar Sensor Technology XVIII; 90770B (2014) https://doi.org/10.1117/12.2051152
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

In general, interpretation of signatures from synthetic aperture radar (SAR) data is a challenging task even for the expert image analyst. For the most part, this is caused by radar specific imaging effects, e.g. layover, multi-path propagation or speckle noise. Specifically for the application in maritime security, ship signatures exhibit additional defocusing effects due to the ship’s movement even when they are anchored. Focusing on object recognition, the detection of target signatures can be done with a pretty good chance of success, but the identification is often impossible. To assist image analysts in their recognition tasks, a SAR simulation tool has been developed recently. It is very simple to operate, by simulating available 3D model data of ships and test the resulting simulated signatures with their real counterpart from SAR images. This is a very robust way to identify larger vessels out of current one meter resolution space borne SAR data. Nevertheless, for smaller vessels this can be still very challenging, because the resolution is too coarse. Recently, TerraSAR-X initiated a new staring spotlight imaging mode that enhances cross-range resolution significantly and therefore also improves the chance for the identification of smaller vessels. This paper demonstrates the capabilities of the developed simulation tool in assisted target recognition specifically on ship signatures. The improvement of recognition performance will be studied by comparing results for TerraSAR-X sliding spotlight mode and staring spotlight mode data.

Citation Download Citation

Harald Anglberger, Timo Kempf, Manfred Hager, Rainer Speck, and Helmut Suess "Identification of maritime target objects from high resolution TerraSAR-X data using SAR simulation", Proc. SPIE 9077, Radar Sensor Technology XVIII, 90770B (29 May 2014); https://doi.org/10.1117/12.2051152

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KEYWORDS

Data modeling

Synthetic aperture radar

3D modeling

Device simulation

Image resolution

Spatial resolution

Radar

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