Measurement and modeling of laser range profiling of small maritime targets

Ove Steinvall; Magnus Elmqvist; Tomas Chevalier; Carl Brännlund

doi:10.1117/12.970271

19 November 2012 Measurement and modeling of laser range profiling of small maritime targets

Ove Steinvall, Magnus Elmqvist, Tomas Chevalier, Carl Brännlund

Proceedings Volume 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI; 85420I (2012) https://doi.org/10.1117/12.970271
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

Abstract

The detection and classification of small surface targets at long ranges is a growing need for naval security. Laser range profiling offers a new capability for detecting and classifying such targets even if they appear as point (transversally unresolved) targets in radar or passive/active imaging EO sensors. Modifying a conventional laser range finder to have a higher range resolution can this increase it’s value as a sensor. Laser range profiles will reveal basic reflecting structures on the ship. The best information is obtained for profiles along the ship. Several range profiles from different aspects will increase the classification performance. If many aspects angles are possible a tomographic reconstruction of the ship may be done. We have used high resolution (sub cm) laser radar based on time correlated single photon counting (TCSPC) to acquire range profiles from different small model ships. The collected waveforms are compared with simulated wave forms based on 3 D models of the ships. A discussion of the classification accuracy based on the number of waveforms from different aspect angles is done as well as the influence of the reflectivity from different parts of the ship is made. The results are discussed with respect to the potential performance of modified laser range finder measuring on real ships and the combination with active imaging.

Citation Download Citation

Ove Steinvall, Magnus Elmqvist, Tomas Chevalier, and Carl Brännlund "Measurement and modeling of laser range profiling of small maritime targets", Proc. SPIE 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, 85420I (19 November 2012); https://doi.org/10.1117/12.970271

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