The study of the remote-sensing application using the GNSS reflected signal with the aperture synthesis

This paper presents the algorithm to synthesize apertures using reflected GPS signal. In this concept, while GPS satellite is utilized as non-cooperative transmitter, receiving platform flies much closer to the Earth´s surface and therefore there is an asymmetry in the geometry. Hence we refer to this geometry as quasi mono-static and by considering this asymmetry as well as the characteristics of GPS signal, we established the algorithm to reconstruct the PSF from the reflected GPS signal. We also conducted a hardware simulation by using GPS signal generator and confirmed the validity of our proposed theory.