NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Formation Flight System Extremum-Seeking-Control Using Blended Performance ParametersAn extremum-seeking control system for formation flight that uses blended performance parameters in a conglomerate performance function that better approximates drag reduction than performance functions formed from individual measurements. Generally, a variety of different measurements are taken and fed to a control system, the measurements are weighted, and are then subjected to a peak-seeking control algorithm. As measurements are continually taken, the aircraft will be guided to a relative position which optimizes the drag reduction of the formation. Two embodiments are discussed. Two approaches are shown for determining relative weightings: "a priori" by which they are qualitatively determined (by minimizing the error between the conglomerate function and the drag reduction function), and by periodically updating the weightings as the formation evolves.
Document ID
20180002491
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Ryan, John J.
Date Acquired
April 23, 2018
Publication Date
January 9, 2018
Subject Category
Aircraft Stability And Control
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-9,864,380
Patent Application
US-Patent-Appl-SN-15/215,776
No Preview Available