Abstract
The paper presents a low-cost Space GNSS receiver for Cubesats promoted by European Space Agency, with the aim of providing real-time precise on-board orbit determination (P2OD). The activity is oriented to a Low-Earth Orbit in-orbit demonstration of the concept in 2020-2021. The GNSS Receiver is based on Deimos’ FPGA-based dual frequency GPS / Galileo receiver (L1/E1 and L5/E5a), integrated in a space qualified Software Defined Radio (SDR) hardware platform produced by GomSpace, and a Precise Point Positioning (PPP) software library provided by Fugro. The University of Nottingham will contribute to the validation campaign. The paper describes preliminary performance results obtained during system design and the on-going qualification campaign.
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