Paper 13355-92
Paper 13355-92
Range measurements using the optical to orion table mountain ground terminal
28 January 2025 • 6:00 PM - 8:00 PM PST | Moscone West, Room 2003 (Level 2)
Abstract
In this paper we describe the implementation of Optical to Orion’s synchronous two-way ranging scheme based on the uplink and downlink communication waveforms. We outline the architecture of the Time of Flight capture system, as well as the hardware and software necessary to extract range and range-rate information from the downlink and uplink signals. We also describe a novel calibration scheme that enables highly accurate compensation of the delays within the ground station without the need to directly measure individual path lengths. Finally, we present the results of laboratory measurements of the time of flight system using ground support equipment, including measurements of the full system through various runs of single mode fiber ranging from 1m to 15 km.
Presenter
Ryan Rogalin
Jet Propulsion Lab. (United States)
Ryan Rogalin received his PhD in Electrical Engineering from the University of Southern California and BS in Electrical Engineering from the University of Oklahoma. During his graduate studies, he developed algorithms and system architectures for what would become the 5G wireless standards, and worked with several commercial terrestrial wireless companies on the implementation of his research. Ryan joined JPL to develop signal processing algorithms for the Deep Space Optical Communication (DSOC) project, and led the team that developed the uplink transmitter and the downlink receiver electronics. He is currently the technical group supervisor of JPL's Information Processing Group (332B).