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Communication Dans Un Congrès Année : 2015

Calibration of the GNSS signal amplitudes in the Interference Pattern Technique for altimetry

Résumé

Global Navigation Satellite Systems signals can be used in bi-static radar systems in order to get altimetric measurements. With a single classic GNSS ground-based receiver processing the combination of the signals coming directly and after one reflection to the receiving antennas, the Interference Pattern Technique allows the computation of the height of the reflecting surface. In this case, the observed parameter is the Signal to Noise Ratio of the received composite signal, which oscillates at a frequency proportional to this height. However, the signal recordings are generally very long since the accuracy of the SNR frequency estimation is proportional to the variation of the satellite elevation during the observation interval. In this article, we propose a calibration technique that allows reducing the observation duration while keeping a centimeter accuracy performance. The proposed technique is tested on both synthetic and real data.

Dates et versions

hal-04418759 , version 1 (26-01-2024)

Identifiants

Citer

Jean-Christophe Kucwaj, Miguel Angel Ribot, Stienne Georges, Cyril Botteron, Serge Reboul, et al.. Calibration of the GNSS signal amplitudes in the Interference Pattern Technique for altimetry. 2014 International Radar Conference (Radar), Oct 2014, Lille, France. pp.1-6, ⟨10.1109/RADAR.2014.7060285⟩. ⟨hal-04418759⟩
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