NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Feedback Control of Flight Speed to Reduce Unmanned Aerial System NoiseThe aim of this initial study is to incorporate an acoustic metric into the flight control system of an unmanned aerial vehicle. This could be used to mitigate the noise impact of unmanned aerial systems operating near residential communities. To incorporate an acoustic metric into a pre-existing flight control system, two things are required: a source noise model, and an acoustic controller. An acoustic model was developed based on Gutin's work to estimate propeller noise. The flight control system was augmented with a controller to reduce propeller noise using feedback control of the commanded flight speed until an acoustic target was met. This control approach focuses on modifying flight speed only, with no perturbation to the trajectory. Multiple flight simulations were performed and the results showed that integrating an acoustic metric into the flight control system of an unmanned aerial system is possible.
Document ID
20180007770
Document Type
Conference Paper
Authors
Matthew B Galles (Langley Research Center Hampton, Virginia, United States)
Noah H Schiller (Langley Research Center Hampton, Virginia, United States)
Kasey A Ackerman (Langley Research Center Hampton, Virginia, United States)
Brett Newman (Old Dominion University Norfolk, Virginia, United States)
Date Acquired
November 19, 2018
Publication Date
June 25, 2018
Subject Category
Aircraft Design, Testing and Performance
Report/Patent Number
NF1676L-30502
Meeting Information
AIAA Aviation 2018(Atlanta, GA)
Funding Number(s)
WBS: 664817.02.07.03.02
Distribution Limits
Public
Copyright
Public Use Permitted.

Available Downloads

NameType 20180007770.pdf STI