References
- Ali, I., Al-Dhahir, N., & Hershey, J.E. (1998). Doppler characterization for LEO satellites. IEEE Transactions on Communications, 46(3), 309-315. Available at: https://doi.org/10.1109/26.668054.
- Ball, D., Robinson, B., & Tanter, R. (2015). The SIGINT Satellites of Pine Gap: Conception, Development and in Orbit. Nautilus Institute for Security and Sustainability. Available at: https://nautilus.org/wp-content/uploads/2015/10/PG-SIGINT-Satellites.pdf.
- HawkEye 360. (2020, January). Pioneering spectrum awareness analytics from space. SatMagazine. Available at: http://www.satmagazine.com/story.php?number=1983820634.
- Kratos Defense. (2023, April 17). Espionage in Orbit: Satellite or Spy? Available at: https://www.kratosdefense.com/constellations/articles/espionage-in-orbit-satellite-or-spy1.
- SatelliteObservation.net. (2016, November 6). History of the French reconnaissance system. Available at: https://satelliteobservation.net/2016/11/06/history-of-the-french-reconnaissance-system/.
- The CubeSat Program. (2020). CubeSat design specification (Rev. 14.1). Cal Poly SLO. Available at: https://www.cubesat.org/s/CDS-REV14_1-2022-02-09.pdf .