Browsing by Author "Hunter, Alan Joseph"

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Challenges of Labelling Unknown Seabed Munition Dumpsites from Acoustic and Optical Surveys: A Case Study at Skagerrak

Bryan, Oscar; Hansen, Roy Edgar; Haines, Tom S. F.; Warakagoda, Narada Dilp; Hunter, Alan Joseph (2022-05-31)

The disposal of unexploded ordnance (UXOs) at sea is a global problem. The mapping and remediation of historic UXOs can be assisted by autonomous underwater vehicles (AUVs) carrying sensor payloads such as synthetic aperture ...
Multibeam Echosounder With Orthogonal Waveforms: Feasibility and Potential Benefits

Blachet, Antoine; Austeng, Andreas; Aparicio, Joaquin; Hunter, Alan Joseph; Hansen, Roy Edgar (2021-04-15)

Modern multibeam echosounders (MBE) employ frequency-division techniques (FDT) to ensonify multiple sectors within the same ping cycle. This leads to improved performance in coverage rate, and yaw and pitch stabilization. ...
Wideband Synthetic Aperture Sonar Back Projection with Maximization of Wave Number Domain Support

Synnes, Stig Asle Vaksvik; Hunter, Alan Joseph; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Callow, Hayden John; Van Vossen, Robbert; Austeng, Andreas (2017)

Wideband and widebeam synthetic aperture sonar (SAS) can provide information on the frequency- and aspect-dependent scattering in a scene. We suggest an approach to predict the quality of the sensor data over the available ...