Browsing by Author "Berg, Henrik"

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A hybrid recorded-synthetic sonar data set for validation of ASW classification algorithms

Hjelmervik, Karl Thomas; Berg, Henrik; Sekse, Dan Henrik; Solberg, Tale (2015)

Modern anti-submarine warfare sonars are often designed with narrow beamwidths and wide frequency bandwidths in order to maximize spatial resolution and sonar performance. A known issue for high-resolution sonars in littoral ...
Predicting False Alarm Rates for High-Resolution Antisubmarine Warfare Sonars in a Cluttering Environment Prone to False Alarm Rate Inflation

Hjelmervik, Karl Thomas; Berg, Henrik; Såstad, Tale Solberg (2019-09-13)

Operation of high-resolution, broadband, antisubmarine warfare sonars in littoral waters is challenging, since the presence of sea mounts, underwater ridges, and other topographic features causes increased false alarm ...
Sonar scattering from the sea bottom near the Norwegian coast

Vestgården, Jørn Inge; Hjelmervik, Karl Thomas; Stender, Dan Henrik Sekse; Berg, Henrik (2017)

High false alarm rates on active sonar systems in shallow waters is a well known problem which may be a limiting factor for the sonar performance. One way to reduce the false alarm rate is through supervised learning and ...