In this paper, we have focused on several relevant sensors [Laser (for speed measurements), Sonar (for space scanning) and RF (for access rights)] to cooperate in monitoring the security status of multiple dynamic agent in surveillance area. Such coordination is achieved by employing novel concepts of sensors similarity and complementarity. Furthermore, this system is aided with Extended Kalman...

The goal of our research is to give mobile robots the ability to deal with real world instructions outdoors such as “Go down to the big tree and turn left.” Inherent in such a paradigm is the robot being able to recognize a “big tree” and do it in unstructured environments without too many pre-mapped fixed landmarks. Ultimately we envision mobile robots that unobtrusively mix in with pedestrian...

Although the causal link between sonar and stranding has not been described explicitly, beaked whales are one of the cetacean taxa more sensitive to use of Navy sonar (Moretti et al., 2014; Tyack et al., 2011). Despite their vulnerability, Blainville's beaked whale, Mesoplodon densirostris (Md), are routinely detected year-round on the AUTEC range, coincident with routine use of Navy sonar. Thi...

Abstmct Sonar as well as other related sequences were introduced by Golomb and Taylor in [2 ] . Following a similar approachiwe introduce the concept of an extended sonar sequence. It is similar to that of a sonar sequence but blank columns are permitted. Several constructions of extended sonars are given. Our constructions are very close to ordinary sonar sequences. However they provide good i...

Interferometry is used for bathymetric mapping with side scan and synthetic aperture sonars. The principle is based on estimating the time difference between arrivals for two vertically displaced receivers. An important additional feature with interferometric sonar is that an estimate of the signal-to-noise ratio can be derived from the coherence between overlaid data series from the two receiv...

Stealth in military sonars applications may be ensured through the use of low power signals making them difficult to intercept by the enemy. In recent years, silent sonar design has been investigated by the Department of Marine Electronic Systems of the Gdansk University of Technology. This article provides an analysis of how an intercept sonar operated by the enemy can detect silent sonar sign...

The useful environmental interaction of a mobile robot is completely dependent on the reliable extraction of information from its immediate surroundings A review of some of the most commonly used coaxial active sensing methods in robotics is presented A coaxial sensor results if the transmitter and receiver are geometri cally arranged in a coaxial manner Certain advantages of such con gurations...

The Deepwater Horizon oil spill accident (April 2010) in the Gulf of Mexico released an unprecedented amount crude oil, much which was trapped around 1000m below surface. has attracted worldwide attention and promoted many autonomous underwater vehicles (AUV) projects. principal objective of our project is to establish a Backseat Driver control architecture for AUV monitor undissolvable ...