Analysis of different CSK configurations in an urban environment when using non-coherent demodulation

Axel Javier Garcia Peña (1) , Philippe Paimblanc (2) , Olivier Julien (3) , Lionel Ries (4) , Thomas Grelier (4)

1 TELECOM - ENAC - Equipe télécommunications
2 TéSA - Télécommunications Spatiales et Aéronautiques - Telecommunications for Space ant Aeronautics
3 SIGNAV - ENAC Equipe TELECOM-SIGNAV
4 CNES - Centre National d'Études Spatiales [Toulouse]

This paper focuses on the demodulation performance analysis of different CSK configurations coupled with different demodulation/decoding methods in urban environments. The tested CSK configurations are defined by the number of bits mapped by a CSK symbol, the number of PRN codes constituting a symbol, and the codeword source mapping. The tested demodulation techniques are the traditional non-coherent demodulation technique and a new proposed technique called ‘non-coherent PRN code’ which reduces the demodulation exposition to the carrier phase fast variations. The tested scenarios depend on the mobile speed and the Line-of-Sight received signal conditions. From all these parameters, a better overall view of the behavior of a CSK signal transmitted in urban environments is obtained and more tools are provided for the design of a GNSS CSK modulated signal

Domaines: Traitement du signal et de l'image [eess.SP]

Axel Javier Garcia Peña, Philippe Paimblanc, Olivier Julien, Lionel Ries, Thomas Grelier. Analysis of different CSK configurations in an urban environment when using non-coherent demodulation. Navitec 2014, 7th ESA Workshop on Satellite Navigation Technologies, European Space Agency, Dec 2014, Noordwijk, Netherlands. ⟨hal-01158626⟩