SFOL Pulse: A High Accuracy DME Pulse for Alternative Aircraft Position and Navigation

In the Federal Aviation Administration's (FAA) performance based navigation strategy announced in 2016, the FAA stated that it would retain and expand the Distance Measuring Equipment (DME) infrastructure to ensure resilient aircraft navigation capability during the event of a Global Navigation...

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Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 17; no. 10; p. 2183
Main Authors Kim, Euiho, Seo, Jiwon
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 22.09.2017
MDPI
Subjects
Accuracy
Air navigation
Aircraft
APNT
Distance measuring equipment
Genetic algorithms
GNSS
Navigation satellites
Pulse shape
APNT
genetic algorithms
GNSS
distance measuring equipment
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Summary:In the Federal Aviation Administration's (FAA) performance based navigation strategy announced in 2016, the FAA stated that it would retain and expand the Distance Measuring Equipment (DME) infrastructure to ensure resilient aircraft navigation capability during the event of a Global Navigation Satellite System (GNSS) outage. However, the main drawback of the DME as a GNSS back up system is that it requires a significant expansion of the current DME ground infrastructure due to its poor distance measuring accuracy over 100 m. The paper introduces a method to improve DME distance measuring accuracy by using a new DME pulse shape. The proposed pulse shape was developed by using Genetic Algorithms and is less susceptible to multipath effects so that the ranging error reduces by 36.0-77.3% when compared to the Gaussian and Smoothed Concave Polygon DME pulses, depending on noise environment.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s17102183