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Book ChapterDOI

Science of Autonomy: Time-Optimal Path Planning and Adaptive Sampling for Swarms of Ocean Vehicles

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TLDR
In this paper, the authors present a review of recent results and research directions in time-optimal path planning and optimal adaptive sampling for underwater swarms, which is applicable to any swarm that moves and senses dynamic environmental fields.
Abstract
The science of autonomy is the systematic development of fundamental knowledge about autonomous decision making and task completing in the form of testable autonomous methods, models and systems. In ocean applications, it involves varied disciplines that are not often connected. However, marine autonomy applications are rapidly growing, both in numbers and in complexity. This new paradigm in ocean science and operations motivates the need to carry out interdisciplinary research in the science of autonomy. This chapter reviews some recent results and research directions in time-optimal path planning and optimal adaptive sampling. The aim is to set a basis for a large number of vehicles forming heterogeneous and collaborative underwater swarms that are smart, i. e., knowledgeable about the predicted environment and their uncertainties, and about the predicted effects of autonomous sensing on future operations. The methodologies are generic and applicable to any swarm that moves and senses dynamic environmental fields. However, our focus is underwater path planning and adaptive sampling with a range of vehicles such as autonomous underwater vehicles (AUV s), gliders, ships or remote sensing platforms.

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Journal ArticleDOI

Time-optimal path planning in dynamic flows using level set equations: theory and schemes

TL;DR: An accurate partial differential equation-based methodology that predicts the time-optimal paths of autonomous vehicles navigating in any continuous, strong, and dynamic ocean currents, obviating the need for heuristics is developed.
Journal ArticleDOI

Integrated Relative Localization and Leader–Follower Formation Control

TL;DR: A consensus-like relative localization scheme for each agent to estimate the real-time relative positions of its neighbors by merely using velocity as well as distance-related measurements and local communications under the assumption that the local frames of all agents share a common orientation is developed.
Journal ArticleDOI

A Graph Laplacian Approach to Coordinate-Free Formation Stabilization for Directed Networks

TL;DR: A graph Laplacian approach is developed to solve the global and exponential formation stabilization problem using merely relative position measurements between neighbors to capture the sensing and control architectures that are needed to maintain the shape of a formation.
Journal ArticleDOI

Energy-optimal path planning by stochastic dynamically orthogonal level-set optimization

TL;DR: In this article, a stochastic optimization methodology is formulated for computing energy-optimal paths from among time-optimally paths of autonomous vehicles navigating in a dynamic flow field.
References
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Journal ArticleDOI

Collective Motion, Sensor Networks, and Ocean Sampling

TL;DR: This paper addresses the design of mobile sensor networks for optimal data collection by using a performance metric, used to derive optimal paths for the network of mobile sensors, to define the optimal data set.
Journal ArticleDOI

Optimal Sites for Supplementary Weather Observations: Simulation with a Small Model

TL;DR: In this paper, the authors introduce a model consisting of 40 ordinary differential equations, with the dependent variables representing values of some atmospheric quantity at 40 sites spaced equally about a latitude circle, and the equations contain quadratic, linear and constant terms representing advection, dissipation, and external forcing.
Journal ArticleDOI

The Slocum Mission

Henry Stommel
- 01 Jan 1989 - 
Journal ArticleDOI

Coordinated control of an underwater glider fleet in an adaptive ocean sampling field experiment in Monterey Bay

TL;DR: The field results for the heterogeneous fleet of autonomous underwater gliders that collected data continuously throughout the month-long ASAP field experiment demonstrate an innovative tool for ocean sampling and provide a proof of concept for an important field robotics endeavor that integrates coordinated motion control with adaptive sampling.
Journal ArticleDOI

Dynamically orthogonal field equations for continuous stochastic dynamical systems

TL;DR: In this article, a decomposition of the solution field into a mean and stochastic dynamical component is derived from the original SPDE, using nothing more than a dynamically orthogonal condition on the representation of a solution.
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