Next generation GNSS-R receiver

A system configured to receive satellite signals, the system comprising:

• a navigation antenna configured to (i) receive first satellite signals transmitted from a first type of satellite in a first frequency band and second satellite signals transmitted from the first type or a second type of satellite in a second frequency band and (ii) generate left hand circular polarization (LHCP) signal responses and right hand circular polarization (RHCP) signal responses based on the first and second satellite signals;
• a plurality of science antennas configured to (i) receive the first satellite signals in the first frequency band and the second satellite signals in the second frequency band as reflected from a ground surface and (ii) generate LHCP signal responses and RHCP signal responses based on the first and second satellite signals;
• a receiver module including
• a processing module, and
• a plurality of receivers coupled between (i) the navigation antenna and the plurality of science antennas and (ii) the processing module, wherein each of the plurality of receivers is configured to operate in at least two channels corresponding respectively to the first frequency band and the second frequency band;
• and
• low noise amplifiers arranged between (i) the navigation antenna and the plurality of science antennas and (ii) the plurality of receivers,
• wherein the processing module is configured to receive the LHCP signal responses and the RHCP signal responses from the navigation antenna and the plurality of science antennas via the plurality of receivers and generate telemetry data based on the received LHCP and RHCP signal responses,
• wherein the processing module includes a system on a chip (SOC) comprising first and second processor cores and field programmable gate array (FPGA) logic configured to process the LHCP signal responses and the RHCP signal responses received from the navigation antenna and the plurality of science antennas,
• wherein the processing module includes a logic module configured to process the LHCP signal responses and the RHCP signal responses to provide channel correlation,
• wherein the first and second processor cores are configured to process correlated data from the logic module according to a reflection measurement process, a low-level navigation process, and a high-level navigation process,
• wherein the first and second processor cores are configured to implement an internal receiver dynamics model and a transmitter dynamics model based on processing the correlated data according to the reflection measurement process, the low-level navigation process, and the high-level navigation process, wherein the internal receiver dynamics model is configured to predict an upcoming receiver position and the transmitter dynamics model is configured to predict satellite geometry information, and
• wherein the first and second processor cores are configured to perform measurement scheduling based on the upcoming receiver position and the satellite geometry information to predict specular points, assign a figure-of-merit to potential measurements, select measurements to perform, and formulate an open-loop correlator command.