Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Persistent surveillance"”.
-
Is Wide-Area Persistent Surveillance by State and Local Governments Constitutional?
… addresses the following question: “Can wide-area persistent surveillance (WAPS) developed by the United States military and employed abroad as a tool in the Global War on Terror be employed domestically as a law enforcement tool without violating the US Constitution’s Fourth Amendment?” The most …
-
Using light underwater : devices, algorithms and systems for maritime persistent surveillance
This thesis presents a novel approach to long-term marine data collection and monitoring. Long-term marine data collection is a key component for understanding planetary scale physical processes and for studying and understanding marine life. Marine monitoring is an important activity for border …
-
Algorithms for persistent autonomy and surveillance
… Our problem formulation extends prior work in persistent surveillance by considering the objective of successfully completing monitoring tasks in unknown, dynamic environments where the rates of events are time-inhomogeneous and may be subject to abrupt changes. We propose novel monitoring …
-
Test and evaluation of the micro-observer sensor system for use as a seismic surveillance device in an integrated sensor network
… sensors in an operational environment to provide persistent surveillance and early warning detection capabilities. The system employed was the commercially available MicroObserver Sensor System. A robust testing and evaluation plan was created to measure the system's objective performance based on …
-
Persistent vision-based search and track using multiple UAVs
… such as border patrol, urban traffic monitoring, persistent surveillance, and search and rescue operations. Most of these missions require the ability to detect and track objects of interest on or near the ground. In addition, most of the missions are inherently long-duration, requiring multiple …
-
Visibility maximization with unmanned aerial vehicles in complex environments
Unmanned aerial vehicles are used extensively in persistent surveillance, search and track, border patrol, and environment monitoring applications. Each of these applications requires the obtainment of information using a dynamic observer equipped with a constrained sensor. Information can only be …
-
Energy-Constrained UAV-UGV Cooperative Systems: A Bilevel Framework for Routing in Multi-Agent Teams
… feasibility of UAV-UGV collaboration for persistent surveillance and emergency response missions.
-
Approximate dynamic programming with applications in multi-agent systems
… unmanned aerial vehicles (UAVs) performing persistent surveillance operations. We present an indoor multi-vehicle testbed called RAVEN (Real-time indoor Autonomous Vehicle test ENvironment) that was developed to study long-duration missions in a controlled environment.
-
Agile flight control techniques for a fixed-wing aircraft
… a particular mission objective, whether it be persistent surveillance or fly-by reconnaissance. Fixed-wing vehicles with a high thrust-to-weight ratio are capable of performing maneuvers such as take-off or perch style landing and switch between hover and conventional flight modes. Agile flight …
-
Formulation of control strategies for requirement definition of multi-agent surveillance systems
… thesis, the proposed methodology is applied to a persistent multi-UAV surveillance problem, whose objective is to increase the situational awareness of a base that receives some instantaneous monitoring information from a group of UAVs. Each UAV has a limited energy capacity and a limited …
-
Optimization and valuation of recongurable satellite constellations under uncertainty/
Space-based persistent surveillance provides decision makers with information necessary to effectively respond to both natural and man-made crises. This thesis investigates a reconfigurable constellation strategy that utilizes on-demand, maneuverable satellites to provide focused regional coverage …