Testing OFDM-based positionning using the digital TV signals

Damien Serant 1 Olivier Julien 1 Paul Thevenon 2 Lionel Ries 2 Mathieu Dervin 3
1 TELECOM - ENAC - Laboratoire de Télécommunications
2 CNES - Centre National d'Etudes Spatiales
3 TAS - Thales Alenia Space
Abstract : Recent regulatory incentives (E911) and numerous locationbased services and applications currently require accurate urban and indoor positioning, which are challenging environments for Global Navigation Satellite Systems. This article investigates a means for enhancing positioning through the use of signalsofopportunity based on the orthogonal frequency division multiplexing modulation. The use of digital video broadcastterrestrial signals to develop and test a pseudorange estimation method employing real signals is presented. The test bench to do so is thoroughly presented. The first testing results with real signals are then investigated in an urban environment showing a potential accuracy of about 11 meters RMS with a mean bias on the order of 9 meters.
Keywords : OFDM DVBT signal of opportunity positioning navigation
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Damien Serant, Olivier Julien, Paul Thevenon, Lionel Ries, Mathieu Dervin. Testing OFDM-based positionning using the digital TV signals. EUSIPCO 2012, 20th European Signal Processing Conference, Aug 2012, Bucharest, Romania. pp 539-543. ⟨hal-01022482⟩

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