Archivio Istituzionale della RicercaGNSS Reflectometry is an emerging technique used for the remote sensing of soil surface. In this work, a bi-static radar equation method was implemented for remote sensing of soil. A portable GNSS-R receiver was used during various in situ measurements campaign. Left Hand Circularly Polarized (LH) reflected signals were processed to extract Delay Doppler Maps (DDMs) and corresponding Delay Waveforms (DWs) by means of an open-loop approach. Signal to Noise Ratios (SNRs) time series were estimated from non-coherent integrated Delay Waveforms. The signal strength sensitivity to different soil moisture levels, i.e. different SNRs levels in input, was verified.
GNSS-R SIGNAL STRENGTH SENSITIVITY TO SOIL MOISTURE / Notarpietro, Riccardo; Pei, Yuekun; Savi, Patrizia. - (2014). (Intervento presentato al convegno XX Riunione Nazionale di Elettromagnetismo (RiNEm) tenutosi a Padova nel September,15-18).
GNSS-R SIGNAL STRENGTH SENSITIVITY TO SOIL MOISTURE
NOTARPIETRO, RICCARDO;PEI, YUEKUN;SAVI, Patrizia
2014
Abstract
GNSS Reflectometry is an emerging technique used for the remote sensing of soil surface. In this work, a bi-static radar equation method was implemented for remote sensing of soil. A portable GNSS-R receiver was used during various in situ measurements campaign. Left Hand Circularly Polarized (LH) reflected signals were processed to extract Delay Doppler Maps (DDMs) and corresponding Delay Waveforms (DWs) by means of an open-loop approach. Signal to Noise Ratios (SNRs) time series were estimated from non-coherent integrated Delay Waveforms. The signal strength sensitivity to different soil moisture levels, i.e. different SNRs levels in input, was verified.
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https://hdl.handle.net/11583/2588581
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