DocumentCode :
2666763
Title :
Physical layer specification of the L-band Digital Aeronautical Communications System (L-DACS1)
Author :
Brandes, S. ; Epple, U. ; Gligorevic, S. ; Schnell, M. ; Haindl, B. ; Sajatovic, M.
Author_Institution :
German Aerosp. Center (DLR), Wessling, Germany
fYear :
2009
fDate :
13-15 May 2009
Firstpage :
1
Lastpage :
12
Abstract :
L-DACS1 is the broadband candidate technology for the future L-band Digital Aeronautical Communications System (L-DACS). The flexible design of L-DACS1 allows the deployment as an inlay system in the spectral gaps between two adjacent channels used by the distance measuring equipment (DME) as well as the non-inlay deployment in unused parts of the L-band. In this paper, the specification of the L-DACS1 physical layer enabling the deployment as an inlay and as a non-inlay or as a mixed inlay and non-inlay system is presented. Apart from the transmitter design, the design of the L-DACS1 receiver is addressed including methods for mitigating interference from other L-band systems. Special emphasis is put on channel estimation which has to be robust towards interference. The different proposed algorithms for channel estimation are evaluated in simulations of the overall L-DACS1 physical layer performance. The results show that L-DACS1 is capable of operating even under severe interference conditions, hence confirming the feasibility of the inlay concept.
Keywords :
aircraft communication; channel estimation; interference suppression; radiofrequency interference; L-band digital aeronautical communications system; broadband candidate technology; channel estimation; distance measuring equipment; inlay concept; interference mitigation; noninlay systems; physical layer specification; transmitter design; Access protocols; Channel estimation; Europe; GSM; Global Positioning System; Interference; L-band; Physical layer; Robustness; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Integrated Communications, Navigation and Surveillance Conference, 2009. ICNS '09.
Conference_Location :
Arlington, VA
Print_ISBN :
978-1-4244-4733-6
Electronic_ISBN :
978-1-4244-4734-3
Type :
conf
DOI :
10.1109/ICNSURV.2009.5172853
Filename :
5172853
Link To Document :
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