The exploration of oceans and sea beds is being made increasingly possible through the development of Autonomous Underwater Vehicles (AUVs). This is an activity that concerns the marine community and it must confront the existence of notable challenges. However, an automatic detecting and tracking system is the first and foremost element for an AUV or an aqueous surveillance network. In this pa...

underwater target imaging using acoustic waves is possible by employing the method used in synthetic aperture radars. in recent years, synthetic aperture sonar has been the subject of several researches. wherein imaging of underwater moving target is required, inverse synthetic aperture sonar (isas) idea can be used but specifications and limitations of underwater channel should be considered. ...

In this paper a sensor fusion scheme, called triangulation-based fusion (TBF) of sonar data, is presented. This algorithm delivers stable natural point landmarks, which appear in practically all indoor environments, i.e., vertical edges like door posts, table legs, and so forth. The landmark precision is in most cases within centimeters. The TBF algorithm is implemented as a voting scheme, whic...

The objective of this project, named MESIA (Multifunctional Micro-Endoscope Head System for Industrial Applications) is to develop an integrated multisensor system and to create intelligent sensor fusion for detection of micro-cracks. This paper is focused on the modeling of a 2-DOF pan-tilt platform actuated by Ni-Ti shape memory alloy (SMA) wires and antagonistic mechanical springs in order t...

The purpose of the effort reported here is to investigate modern multi-target tracking algorithms for high frequency active applications. High frequency active sensor systems are currently being evaluated by the Navy to meet the Sea Power 21 Sea Shield objectives for force protection and port security. These systems have elementary baseline tracking capabilities and could benefit from incorpora...