Evaluation of temporal spacing errors associated with interval management algorithms

Xiaoli Bai, Sai Vaddi, Daniel Mulfinger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

This paper seeks to characterize the temporal spacing errors resulting from the use of Interval Management (IM) algorithms. The focus of the current paper is IM concepts and algorithms that realize a specified temporal spacing between a Target aircraft and an Ownship aircraft at the runway threshold. The paper presents an IM algorithm consisting of the following four modules: (i) Target-Landing-Time Estimation Module, (ii) Ownship-Landing-Time Estimation Module, (iii) Ownship Speed Command Computation Module, and (iv) Ownship Thrust Command Computation Module. The overall guidance module is evaluated on a simulation that models aircraft point-mass dynamics, bank-angle auto-pilot dynamics, pitch-axis auto-pilot dynamics, and engine lag dynamics. The simulation environment also consists of actual atmospheric forecasts and realistic spatio-temporally correlated wind uncertainty models. Results obtained from single case simulation as well as Monte-Carlo simulations are presented in the paper. The modeled scenario consisted of an A320 Target equipped with "Lateral Navigation"/"Vertical Navigation" (LNAV/VNAV) capabilities followed by an A320 Ownship equipped with the IM algorithm. Both aircraft fly the BIGSUR route to SFO airport using a RAP-13 1-hr wind forecast. 500 Monte-Carlo simulations were conducted with realistic wind uncertainty models. The IM algorithm for this case is seen to have a 90% probability landing time error range of 5.9 seconds, compared to the no-IM solution, which has a 90% probability landing time error range of 33.4 seconds.

Original languageEnglish (US)
Title of host publicationAIAA AVIATION 2014 -14th AIAA Aviation Technology, Integration, and Operations Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102820
DOIs
StatePublished - 2014
Externally publishedYes
EventAIAA AVIATION 2014 -14th AIAA Aviation Technology, Integration, and Operations Conference 2014 - Atlanta, GA, United States
Duration: Jun 16 2014Jun 20 2014

Publication series

NameAIAA AVIATION 2014 -14th AIAA Aviation Technology, Integration, and Operations Conference

Other

OtherAIAA AVIATION 2014 -14th AIAA Aviation Technology, Integration, and Operations Conference 2014
Country/TerritoryUnited States
CityAtlanta, GA
Period6/16/146/20/14

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Evaluation of temporal spacing errors associated with interval management algorithms'. Together they form a unique fingerprint.

Cite this