Design of an Integrated Acceleration Acquisition Subsystem to Satisfy High-Speed and Low-Area Requirements for CubeSats

Author

Ryan J. Rumsey, California Polytechnic State University, San Luis ObispoFollow

DOI: https://doi.org/10.15368/theses.2016.46
Available at: https://digitalcommons.calpoly.edu/theses/1569

Date of Award

6-2016

Degree Name

MS in Electrical Engineering

Department/Program

Electrical Engineering

Advisor

Bridget Benson

Abstract

Cal Poly San Luis Obispo’s PolySat team is designing the Multipurpose Orbital Spring Ejection System (MOSES) in order to record acceleration data during the launch of CubeSats as well as to provide GPS coordinates to locate the position of CubeSats once they are injected into orbit. This work focuses on the design and development of the acceleration data acquisition (DAQ) subsystem of MOSES. This subsystem is designed around the need for a high-speed sampling system of at least 200 kHz across four channels of data, plus low-area limitations in the MOSES form factor which is roughly half the size of a standard CubeSat. To address these specifications, the design explores system implementation around a Xilinx Artix-7 FPGA with a built-in analog-to-digital converter and a custom hardware solution.