Abstract
In this paper, the design of a GNSS-R data acquisition system is described, including the antenna, RF (radio frequency) front-end and FPGA (field programmable gate array) based logic circuit for data storage interface. Two RF front-ends are connected with the RHCP (right-hand circular polarization) and LHCP (left-hand circular polarization) antenna to collect the direct and reflected signal separately. Both the specifications and the circuit connections are given in detail. Experiments are performed for statics at the seashore and dynamic scenario in the sea using airplanes. The results of the data analysis show that the proposed data acquisition system is suitable for GNSS-R primitive data collection.
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