Pycaro´s instrument proof of concept

The Global Positioning System (GPS) was first conceived for positioning and navigation purposes, but it has also been used for Earth observation. Later, it has also been used for Earth observation as a bistatic radar for altimetry and scatterometric applications. At present, the ultimate influence of the different Global Navigation Satellite System Reflectometry (GNSS-R) parameters in the precision and accuracy of the altimetric products is still being analyzing. The impact of the different error sources as well as the expected theoretical height precision and the correction of the different bias terms must be compared with experimental results obtained in a real scenario. The results of a ground-based field experiment performed to test the precision and the accuracy of a new P(Y) & C/A ReflectOmeter (PYCARO) are presented. The experiment demonstrates a 1 cm precision from a fixed location in a reservoir.