Maneuvering motions of surface and underwater vehicles.
Alcids are adapted for swimming on the ocean surface and underwater.
Solutions modeled in simulation environments and include field tests with small autonomous surface and underwater vehicles operated on the Charles River.
It is found both in inshore and offshore marine waters, where it pursues plankton and small fish both at the surface and underwater.
Vibration velocity of the outer hull surface and underwater sound pressure were computed through modal superposition technique.
Mr. Atkin, of Save the Sound, said a reserve could also set aside surface and underwater areas for research into restoring marine habitats and understanding how contaminants affect marine life.
Recognizing the importance of Unmanned Systems (or, Unmanned Vehicle Systems, UVS) for both civilian/public domain and military applications, JINT includes a special section in each issue devoted to Unmanned Systems, focusing on all four classes of aerial, ground, sea-surface and underwater vehicles, the common characteristic of which is the absence on-board the vehicle of a human operator.
Potential trail uses allowed on designated components of the national trails system may include, but are not limited to, the following: bicycling, cross-country skiing, day hiking, equestrian activities, jogging or similar fitness activities, trail biking, overnight and long-distance backpacking, snowmobiling, and surface water and underwater activities.
As a source of signals both surface impulses and underwater or underground explosions, single and periodic, and also harmonious excitation are considered, and displacements of a free surface as the response.
The subject will have a significant lab component, involving the use of the MOOS-IvP autonomy software infrastructure for developing integrated sensing, modeling and control solutions for a variety of ocean observation problems, using simulation environments and a field testbed with small autonomous surface craft and underwater vehicles operated on the Charles River.
Due to the reflection of the sea surface, submarine, and underwater medium, there are complicated multipath propagation in shallow sea acoustic channel, which can be considered as generalized uncorrelated scattering condition in general wireless channel.
