Accession Number : AD1046297


Title :   Engineering of Fast and Robust Adaptive Control for Fixed-Wing Unmanned Aircraft


Descriptive Note : Technical Report


Corporate Author : Naval Postgraduate School Monterey United States


Personal Author(s) : Beall,Ryan G


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1046297.pdf


Report Date : 01 Jun 2017


Pagination or Media Count : 121


Abstract : As the demand for Unmanned Aerial System (UAS) technology increases, the current guidance, navigation, and control (GNC)algorithms will scale poorly to meet the demand because currently, significant resources are required to certify flight controllers on an individual platform basis. As different airframes are introduced to meet the expanding mission requirements, the resources required to sustain the GNC certification demand will become a limiting factor in scalability. The feasibility of replacing conventional GNC techniques with modern adaptive control theory was conducted on a commercial-off-the-shelf (COTS) open-source autopilot. This enabled rapid prototyping and integration of an adaptive controller. The adaptive controller architecture was designed to be aircraft non-specific. This ensures the controller easily integrates into any aircraft, therefore minimizing the resource burden of tuning and certification. The adaptive controller tested in this research improved performance over the baseline controller and was rapidly integrated on multiple various airframes with minimal resources. Improved performance over classical feedback was achieved with fast and robust adaptation in multiple regimes of flight.


Descriptors :   UNMANNED AERIAL VEHICLES , ADAPTIVE CONTROL SYSTEMS , airframes , flight testing , test and evaluation


Subject Categories : Pilotless Aircraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE