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ADS-B over Satellite Coherent detection of weak Mode-S signals from Low Earth Orbit

Delovski, Toni and Bredemeyer, Jochen and Werner, Klaus (2016) ADS-B over Satellite Coherent detection of weak Mode-S signals from Low Earth Orbit. Small Satellites Systems and Services 2016, 30. May - 03. June 2016, La Valetta, Malta.

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Abstract

The world's first ADS-B over Satellite (AOS) In-Orbit Demonstrator (IOD) within ESA 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 postprocessing. 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/106316/
Document Type:Conference or Workshop Item (Speech)
Title:ADS-B over Satellite Coherent detection of weak Mode-S signals from Low Earth Orbit
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Delovski, ToniDLR Institute of Space Systems, System Development and Project Office, Bremen, Germanyhttps://orcid.org/0000-0003-4228-3830
Bredemeyer, JochenFCS, Flight Calibration ServicesUNSPECIFIED
Werner, KlausDLR, Institut für FlugführungUNSPECIFIED
Date:May 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Sensor development, ADS-B, Satellite
Event Title:Small Satellites Systems and Services 2016
Event Location:La Valetta, Malta
Event Type:international Conference
Event Dates:30. May - 03. June 2016
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Projekt ADS-B (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Engineering and Project Office
Deposited By: Delovski, Toni
Deposited On:05 Oct 2016 14:49
Last Modified:31 Jul 2019 20:03

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