GNU Radio based Satellite Communication Tool

This paper describes development of a GNU Radio based tool to design a ground station receiver for satellite communication. The proposed work focuses on observing radio frequency(RF) spectrum used by satellites to communicate with ground station. RF spectrum obtained from various satellites using proposed GNU tool is reported in the paper. RF spectrum from one of the S-band satellites named SindhuNetra(SINE), designed inhouse by PES University, alongwith RCI-DRDO and launched by ISRO was used for study, analysis and various experiments, including demodulation and decoding of telemetry data using the proposed tool with a maximum Figure of Merit obtained being 0.997.