Assessment and mitigation of equatorial plasma bubble impacts on category I GBAS operations in the Brazilian region. Issue 3 (22nd August 2019)
- Record Type:
- Journal Article
- Title:
- Assessment and mitigation of equatorial plasma bubble impacts on category I GBAS operations in the Brazilian region. Issue 3 (22nd August 2019)
- Main Title:
- Assessment and mitigation of equatorial plasma bubble impacts on category I GBAS operations in the Brazilian region
- Authors:
- Yoon, Moonseok
Kim, Dongwoo
Pullen, Sam
Lee, Jiyun - Abstract:
- Abstract: Prior to initiating GBAS service in equatorial regions, it is vital to evaluate potential integrity threats posed by equatorial plasma bubble (EPB)‐induced ionospheric gradients and assess availability when implementing ionospheric threat mitigation methods. Earlier work developed a preliminary EPB model with a gradient bound larger than twice that for mid‐latitude ionospheric storms. Position‐domain geometry screening (PDGS) with this higher gradient bound decreases availability to 58.3% at the Galeão International Airport, Brazil, during nighttime. A new mitigation method using Monte Carlo simulation randomizes ionospheric scenarios using randomly generated parameter combinations within the threat model and assesses the ensemble impacts. By taking credit for a prior probability of an extreme EPB, this algorithm determines the inflated integrity parameters to meet the safety requirement in the probabilistic definition. This paper shows that with this method, the system availability for category I precision approaches dramatically improved to 89.6% when a data‐driven prior probability of 10‐5 was applied.
- Is Part Of:
- Navigation. Volume 66:Issue 3(2019)
- Journal:
- Navigation
- Issue:
- Volume 66:Issue 3(2019)
- Issue Display:
- Volume 66, Issue 3 (2019)
- Year:
- 2019
- Volume:
- 66
- Issue:
- 3
- Issue Sort Value:
- 2019-0066-0003-0000
- Page Start:
- 643
- Page End:
- 659
- Publication Date:
- 2019-08-22
- Subjects:
- Navigation -- Periodicals
Navigation (Aeronautics) -- Periodicals
Navigatie
Navigation -- Périodiques
Navigation (Aéronautique) -- Périodiques
NAVIGATION
MARITIME SATELLITES
NAVIGATION SATELLITES
527.05 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292161-4296 ↗
http://rzblx1.uni-regensburg.de/ezeit/warpto.phtml?colors=7&jour%5Fid=53810 ↗
https://navi.ion.org/ ↗ - DOI:
- 10.1002/navi.328 ↗
- Languages:
- English
- ISSNs:
- 0028-1522
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 6066.000000
British Library HMNTS - ELD Digital store - Ingest File:
- 11679.xml