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Published in:
2023 | OriginalPaper | Chapter
FPGA Implementation of TTC and OBC for a Cubesat
Authors : R. Sathyanvesh, Jayanthi K. Murthy, Chandrakala G. Raju, H. N. Suma
Published in: Smart Small Satellites: Design, Modelling and Development
Publisher: Springer Nature Singapore
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Abstract
This paper describes the implementation of the telecommand decoder and telemetry data encoder on FPGA for cube satellite operations. The objective is to design and launch a student satellite in Low Earth Orbit and perform on-orbit operations to demonstrate the imaging of the Earth’s surface, high-altitude operations and de-orbiting maneuver. The Telemetry, Tracking and Telecommand (TTC) and On-Board Computer (OBC) subsystem implementation allow the CCSDS-compliant ground stations to communicate with the satellite to facilitate telemetry, telecommand and ranging functions throughout the life of the satellite mission. The use of FPGA in space missions provides high computational power, and parallel processing at relatively lower power consumption. Telemetry encoder and telecommand decoder are implemented in HDL Verilog, and simulation is conducted in the Vivado design suite for Xilinx Zynq 7000 FPGA.