Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Naveena Crasta"'
Autor:
Naveena Crasta, Sanjay P. Bhat
Publikováno v:
The Journal of the Astronautical Sciences. 65:261-290
Louis Poinsot’s result, that any relative rotational motion between two frames can be realized as the motion of a moving cone rolling without slipping on a stationary cone, is stated and proved using matrix-vector algebra. Poinsot’s result is use
Publikováno v:
IFAC-PapersOnLine. 51:177-182
In many scientific and commercial missions at sea, it is of crucial importance to localize one ore more targets underwater. This objective meets with difficulties due to the unavailability of GPS underwater and the high cost of the equipment classica
Publikováno v:
IFAC-PapersOnLine. 51:348-353
This paper presents a solution to the problem of path following control for autonomous marine vehicles (AMVs) subject to input constraints and constant ocean current disturbances. We propose two nonlinear control strategies: the first is obtained by
Publikováno v:
Robotics and Autonomous Systems
We address the general problem of multiple target localization and pursuit using measurements of the ranges from the targets to a set of autonomous pursuing vehicles, referred to as trackers. We develop a general framework for targets with models exh
Autor:
Nguyen T. Hung, Isaac Kaminer, F. Curado-Teixeira, Antonio M. Pascoal, Naveena Crasta, João Quintas, Pedro U. Lima
Publikováno v:
OCEANS 2019-Marseille
We propose an integrated motion planning, geophysical navigation, and control (PNC) system for autonomous underwater vehicles (AUVs) that makes explicit use of geophysical information for both planning and navigation. The PNC system exploits the info
Publikováno v:
2018 13th APCA International Conference on Control and Soft Computing (CONTROLO).
In many of the marine applications, the availability of an accurate system to localize underwater targets using a group of surface vehicles equipped with acoustic sensors is of paramount importance. In this context, the surface vehicles must keep a w
Publikováno v:
IFAC-PapersOnLine. 49:41-47
We address the problem of range-based marine vehicle positioning in the presence of unknown but constant ocean currents. The goal is to estimate the position of one or more vehicles from a sequence of range measurements to fixed or moving acoustic be
Publikováno v:
IEEE Transactions on Control Systems Technology. 24:122-139
This paper addresses the problem of range-based autonomous underwater vehicle (AUV) localization in the presence of unknown ocean currents. In the setup adopted, the AUV is equipped with an attitude and heading reference system, a depth sensor, and a
Autor:
Joaquín Aranda, David Moreno-Salinas, Naveena Crasta, Antonio M. Pascoal, Miguel Ribeiro, Behzad Bayat
Publikováno v:
IFAC-PapersOnLine. 49:34-40
The paper addresses the problems of range-based marine vehicle positioning and target localization. Vehicle positioning aims to estimate the positions of one or more vehicles from a sequence of range measurements to fixed or moving acoustic beacons w
Publikováno v:
Annual Reviews in Control. 40:142-156
We analyze the observability properties of the kinematic model of an autonomous underwater vehicle (AUV) moving in 3D, under the influence of ocean currents, using range and depth measurements. The results obtained shed light into the types of trajec