Skip to main navigation menu Skip to main content Skip to site footer

Articles

Volume 7, Number 2 (2006)

Empirical Object Detection Performance of Lidar and Multibeam Sonar Systems in Long Island Sound

Submitted
August 13, 2013
Published
2006-06-06

Abstract

A comparison of object detection capability of side scan sonar, multibeam sonar, and Lidar was conducted by NOAA in Long Island Sound. The seafloor is characterised by thousands of glacial erratics-boulders varying in size from cobbles to 10m on a side. The water turbidity varies from Secchi depth of 3.5m to 6m. A set of 93 features was selected from the side scan data and was compared with data from the multibeam sonar and the Lidar. The percentages of targets detected by the different systems were compared as a function of target size, target height, and water depth.