Impact of Specular Point Estimation Inaccuracies on TechoDemoSat-1 GNSS-Reflectometry Observables Over Oceans

Giuseppe Grieco, Ad Stoffelen, Marcos Portabella

This paper presents an assessment of the effects of specular point (SP) estimation inaccuracies on the Signal to Noise Ratio peak (SNR PEAK ) used for ocean wind speed retrievals from TechDemoSat-1 (TDS-1) Delay Doppler Maps (DDMs). Results show that the more inaccurate the estimated Doppler frequency at the SP, the lower the intensity of the SNR PEAK . Differences may be up to 2 dB.

Bibliographic data

Giuseppe Grieco, Ad Stoffelen, Marcos Portabella . Impact of Specular Point Estimation Inaccuracies on TechoDemoSat-1 GNSS-Reflectometry Observables Over Oceans
Journal: IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Year: 2019, doi: https://doi.org/10.1109/IGARSS.2019.8898561