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Improvement of Weak Signal Detection for ADS-B over Satellite

Bredemeyer, Jochen and Delovski, Toni and Werner, Klaus (2016) Improvement of Weak Signal Detection for ADS-B over Satellite. International Symposium on Enhanced Solutions for Aircraft and Vehicle Surveillance Applications, 07. - 08. April, Berlin, Deutschland.

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The world’s first ADS-B over Satellite (AOS) In- Orbit Demonstrator (IOD) within ESA’s PROBA-V mission is operational since May 2013 and has successfully validated the principle of detecting weak Mode S transponder transmissions from a Low Earth Orbit (LEO). A special feature was included in the receiver’s firmware that allows to upload new configurations and to activate these by remote access. During mission runtime so far, this has been successfully tested several times. In the meanwhile an improved Mode S correlation mechanism was developed that benefits from the phase coherence of the pulse train from the first Mode S preamble pulse to the fifth format bit. In lab tests it could be shown that the telegram detection rate increased significantly. Moreover, by generating and saving ”Low-Confidence Bits” for the 112 Mode S data bits in DF17, there is an additional chance to increase the success rate for error-free demodulation of the telegram in post-processing. The improvement on ADS-B data from space in comparison with the results gained with the non coherent approach will be shown.

Item URL in elib:https://elib.dlr.de/106319/
Document Type:Conference or Workshop Item (Speech)
Title:Improvement of Weak Signal Detection for ADS-B over Satellite
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bredemeyer, JochenFCS, Flight Calibration ServicesUNSPECIFIED
Delovski, ToniDLR Institute of Space Systems, System Development and Project Office, Bremen, Germanyhttps://orcid.org/0000-0003-4228-3830
Werner, KlausDLR, Institut für FlugführungUNSPECIFIED
Date:7 April 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Sensor development, ADS-B, Satellite
Event Title:International Symposium on Enhanced Solutions for Aircraft and Vehicle Surveillance Applications
Event Location:Berlin, Deutschland
Event Type:international Conference
Event Dates:07. - 08. April
Organizer:German Institute of Navigation, German Aerospace Center
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Projekt ADS-B (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Engineering and Project Office
Institute of Flight Guidance
Deposited By: Delovski, Toni
Deposited On:05 Oct 2016 14:51
Last Modified:31 Jul 2019 20:03

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