Implementation of a GNSS-R payload based on software defined radio for the 3CAT-2 mission
Visualitza/Obre
10.1109/JSTARS.2016.2559939
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/120801
Tipus de documentArticle
Data publicació2016-10-01
EditorInstitute of Electrical and Electronics Engineers (IEEE)
Condicions d'accésAccés obert
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Abstract
The 3CAT-2 nanosatellite aims at demonstrating global navigation satellite system reflectometry (GNSS-R) techniques for spaceborne applications in the small form of a six-unit CubeSat. There are many challenges involved from a size, processing, and power perspectives. The proposed solution for the payload uses a software-defined radio (SDR) connected to a nadir looking array of dual-band and dual-frequency and dual-polarization antennas to capture the reflected GNSS signals and to a zenith looking patch antenna to capture the direct ones. The SDR is controlled by the payload computer, which retrieves the binary samples and processes the raw data to obtain delay-doppler maps (DDMs) via various techniques. DDMs are then compressed using the fully adaptive prediction error coder algorithm, producing an output more suitable for the limited downlink capabilities of these small platforms.
Descripció
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CitacióOlive, R., Amezaga, A., Carreno-Luengo, H., Park, H., Camps, A. Implementation of a GNSS-R payload based on software defined radio for the 3CAT-2 mission. "IEEE journal of selected topics in applied earth observations and remote sensing", 1 Octubre 2016, vol. 9, núm. 10, p. 4824-4833.
ISSN1939-1404
Versió de l'editorhttp://ieeexplore.ieee.org/document/7489034/
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