Flight test of a pseudo-ranging signal compatible with existing distance measuring equipment (DME) ground stations

Sherman Lo, Yu-Hsuan Chen, Per Enge, Wouter Pelgrum, Kuangmin Li, George Weida, Achim Soelter

Peer Reviewed

Abstract: Distance measuring equipment (DME) has been a cornerstone of aviation navigation for the last 70 years. While GNSS is taking an increasingly important role in civil aviation, DME can still play an important role in a robust aviation infrastructure in the foreseeable future. Advanced concepts have been developed to improve DME performance and capabilities. One concept is a DME-based pseudolite that position modulates existing DME pulse pairs. It is interoperable with DME operations and can be generated using the currently fielded DME transponders with an appliqué. This concept is suitable as a robust alternative to GNSS for aviation navigation or timing. The paper examines the performance of DME pseudolite implemented via an appliqué on a DME transponder. The paper examines the synchronization and data performance of the DME pseudolite signal in the air and on the ground. The paper compares the actual performance to theoretical results.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 67, Number 3
Pages: 567 - 582
Cite this article: Export Citation
https://doi.org/10.1002/navi.376
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