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Full-Text Articles in Engineering
Differential Flatness Based Control Of A Rotorcraft For Aggressive Maneuvers, Timothy Mclain, Randal W. Beard, Robert C. Leishman, Jeffrey L. Ferrin
Differential Flatness Based Control Of A Rotorcraft For Aggressive Maneuvers, Timothy Mclain, Randal W. Beard, Robert C. Leishman, Jeffrey L. Ferrin
Faculty Publications
We propose a new method to control a multi-rotor aerial vehicle. We show that the system dynamics are differentially flat. We utilize the differential flatness of the system to provide a feed forward input. The system model derived allows for arbitrary changes in yaw and is not limited to small roll and pitch angles. We demonstrate in hardware the ability to follow a highly maneuverable path while tracking a time-varying heading command.
Worse-Than-Rayleigh Fading: Experimental Results And Theoretical Models, David W. Matolak, Jeff Frolik
Worse-Than-Rayleigh Fading: Experimental Results And Theoretical Models, David W. Matolak, Jeff Frolik
Faculty Publications
This article is motivated by the recent recognition that channel fading for new wireless applications is not always well described by traditional models used for mobile communication systems. In particular, fading data collected for vehicleto- vehicle and wireless sensor network applications has motivated new models for conditions in which channel fading statistics can be worse than Rayleigh. We review the use of statistical channel models, describe our example applications, and provide both measured and modeling results for these severe fading conditions.