GNSS Signals Reception and Transmission Using CubeSat PlatformsO-Jong Kim, Ina Jeong, Sunhwan Gwon, Hanjoon Shim, Yonghwan Bae, Sunkyoung YuProceedings of the 2025 IPNT Conference of the Institute of Positioning, Navigation, and Timing (IPNT), Jeju, Korea, Nov 2025 2025