Ellis King

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This paper discusses the development and testing of a unique testbed consisting of a fleet of eight autonomous unmanned aerial vehicles (UAVs) that was designed as a platform for evaluating autonomous coordination and control algorithms. Future UAV teams will have to autonomously demonstrate cooperative behaviors in dynamic and uncertain environments , and(More)
— This paper introduces two unique testbeds that have recently been developed to demonstrate the cooperative control of teams of UAVs. The first testbed uses eight rovers and four blimps operated indoors to emulate a team of heterogeneous vehicles performing a combined reconnaissance and strike mission. The second testbed uses eight small aircraft that are(More)
This paper discusses several unique hardware testbeds that were developed to evaluate coordination and control algorithms for missions with multiple unmanned aerial vehicles (UAVs). The first testbed uses eight rovers and two blimps operated indoors to emulate a heterogeneous fleet of aircraft. The second testbed has eight UAVs flown autonomously with(More)
BACKGROUND Catecholamines, such as epinephrine, are elaborated in stress responses, and mediate vasoconstriction to cause elevation in systemic vascular resistance and blood pressure. Our previous study has shown that IL-1 can induce mast cells to produce proinflammatory cytokines which are involved in atherogenesis. The aim of this study was to determine(More)
This study compared the effectiveness of the ITT Night Vision Viewer with the Wide Angle Mobility Lamp (WAML) as low-vision mobility devices for people experiencing night blindness due to retinitis pigmentosa (RP). Both engineering bench testing and functional evaluations were used in the assessments. Engineering evaluations were conducted for (1)(More)
  • Philip Andrew Ferguson, Edward M Greitzer, H N Slater, Chanwoo Park, Nick Pohlman, Arthur Richards +5 others
  • 2003
Many future space missions, such as space-based radar, earth mapping, and inter-ferometry, will require formation flying of multiple spacecraft to achieve their very advanced science objectives. While formation flying offers many performance and operational advantages, there are several challenges that must be addressed, including navigation, control,(More)
  • Milan Mandic, Louis Breger, Arthur Richards, Henry De Plinval, Yoshiaki Kuwata, Mehdi Alighanbari +12 others
  • 2013
Future formation flying missions are being planned for fleets of spacecraft in MEO, GEO, and beyond where relative navigation using GPS will either be impossible or insufficient. To perform fleet estimation for these scenarios, local ranging devices on each vehicle are being considered to replace or augment the available GPS measurements. These estimation(More)
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