3D Volumetric Sonar Imaging For Identification Missions

Kennedy and Marston discuss advanced 3D imaging on unmanned systems to ID objects on seabed. The development of technologies for reacquisition and identification (RI) of risks posed by underwater objects has received much attention over the past few decades. Hazards such as unexploded ordnance and sea mines have been a focal point for underwater RI research efforts due to the danger they pose to humans, trade and the environment. Many acoustic technologies exist for high-resolution reacquisition and identification. Side scan and forward-looking sonars can provide near instantaneous feedback in many cases, and have found a large number of applications in both commercial and naval situations where high-resolution acoustic imaging is necessary. In order to provide insight on the practicality and feasibility of long-range 3D volumetric sonar imaging using an AUV platform, the Office of Naval Research and US Department of Defense Strategic Environmental Research and Development Program leveraged sponsorship of a multiyear project investigating this technology.