Detection of small targets in a marine environment using laser radar

Kunz, G.J.; Bekman, H.H.P.Th.; Benoist, Koen W.; Coen, Leo H.; Heuvel, J.C. van den; Putten, Frank J. M. van

doi:10.1117/12.614914

Cited by 12 publications

(14 citation statements)

References 8 publications

(5 reference statements)

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“…The reflection from the sea surface was assumed negligible, which has been confirmed by several experiments in the past near the coast. 7 Some of these results were shown in the previous section. From the scenario observation parameters like distances, and angles for elevation and azimuth are extracted.…”

Section: Simulated Sensor Datamentioning

confidence: 70%

Identification of littoral targets with a laser range profiler

et al. 2007

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Naval operations in the littoral have to deal with threats at short range in cluttered environments with both neutral and hostile targets. On board naval vessels there is a need for fast identification, which is possible with a laser range profiler. Additionally, in a coast-surveillance scenario a laser range profiler can be used for identification of small sea-surface targets approaching the coast. An eye-safe 1.5 um laser range profiler has been used to validate these claims. Experimental results show that range profiles of sea-surface targets can be obtained at ranges of several km's. Seasurface clutter is shown to be negligible. Simulation shows that sea-surface targets can be distinguished from their range profiles. The influence on the identification performance of range resolution and a-priori knowledge of the aspect angle is presented. Classification has been tested on simulated range profiles of a number of small boats. With a range resolution of 0.3 meter (comparable to our experimental set-up), these small boats could be identified.

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Section: Simulated Sensor Datamentioning

confidence: 70%

Identification of littoral targets with a laser range profiler

et al. 2007

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“…The reflection from the sea surface was assumed negligible, which has been confirmed by several experiments in the past near the coast. 7 Furthermore, the MCG/8 trial shows negligible surface reflection as well. Using the Matlab simulation model, the simulated LR profile of a frigate with front side laser illumination is obtained.…”

Section: Resultsmentioning

confidence: 99%

“…Sea-surface reflection was negligible. 7 Identification with laser range profiles is in principle easier than for radar range profiles since radar returns depend very sensitive on aspect angle due to the predominant specular reflection. 1,2 In this paper results of the LRP measurements at the MCG/8 NATO trial in Stavanger, Norway, are discussed and used to validate previous simulated results of ship identification with an LRP.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of ship identification with a laser range profiler

et al. 2008

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Naval operations in the littoral have to deal with threats at short range in cluttered environments with both neutral and hostile targets. There is a need for fast identification, which is possible with a laser range profiler. Additionally, in a coastal-surveillance scenario a laser range profiler can be used for identification of small sea-surface targets approaching the coast. A field trial in June 2007 at the coast of Norway was conducted to validate the concept of ship identification with a laser range profile. A laser range profiler with a high bandwidth, fast laser receiver was used to perform tests on the capability of a laser range profiler for identification. The ships in the field trial were of frigate size. Good laser range profiles could be obtained up to a range of 10 km. The experimental results were compared with the geometry of the ships and a simulated range profile based on a 3D target model. The good match between experimental and simulated laser range profiles means that a database of laser range signatures can be constructed from 3D-models, thus simplifying the database creation. It is shown that sea-surface targets can be distinguished by their laser range profiles. A neural net approach could distinguish five ships with no false identification.

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“…The same laser can also be used for active imaging when the target comes closer and is angular resolved. Laser range profiling has been tested for both search and ID of small surface targets [12,13] and also for aircraft ID [14]. A recent article by Shoemaker et.al [15] discusses laser range profiling of small maritime targets in relation to a NATO trial in San Diego.…”

Section: Introductionmentioning

confidence: 99%

Simulating the performance of laser imaging and range profiling of small surface vessels

2013

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The detection and classification of small surface targets at long ranges is a growing need for naval security. This paper will discuss simulations of a laser radar at 1.5 µm aimed for search, detect and recognition of small maritime targets. The data for the laser radar system will be based on present and realistic future technology.The simulations will incorporate typical target movements at different sea states, vessel courses, effects of the atmosphere and for given laser system parameters also include different beam jitter. The laser pulse energy, repetition rate as well as the receiver and detector parameters have not been changed during the simulations.A discussion of the classification potential based on information in 1D, 2D and 3D data separately and in combination will be made vs. different environmental conditions and system parameters. System issues when combining the laser radar with IR/TV and a range-Doppler radar will also be commented.

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Detection of small targets in a marine environment using laser radar

Cited by 12 publications

References 8 publications

Identification of littoral targets with a laser range profiler

Identification of littoral targets with a laser range profiler

Experimental validation of ship identification with a laser range profiler

Simulating the performance of laser imaging and range profiling of small surface vessels

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