April 26 seminar: Khanh Pham

April 26, 2024

Enhanced Multi-Way Time Transfer for HighPrecision Time Synchronization among UASs

Khanh Pham, Air Force Research Laboratory

3:00 pm, ECE Building, Room 118
Online Guests: Contact Prof. Osiński <osinski@chtm.unm.edu> for a Zoom link

Abstract: This talk begins with a framework of enhanced two-way time transfer (TWTT) that is capable of achieving high-precision (e.g., 100 picoseconds) time synchronization of multiple distributed RF sources located on UASs in a GPS-denied environment. The proposed Enhanced Multi-Way Time Transfer relaxes two conditions of traditional TWTT: (i) Time at which the time-based signals are transmitted are the same for both Transmit and Receive sides and (ii) Propagation delays of time signals must be the same in both directions. Event-driven numerical simulations are also implemented and analyzed.

Bio: Dr. Khanh D. Pham is a supervisory principal aerospace engineer at the Air Force Research Laboratory / Space Vehicles Directorate and an adjunct research professor in the ECE Department at UNM. He is a Fellow of the Institute of Electrical and Electronics Engineers, National Academy of Inventors, Air Force Research Laboratory, American Astronautical Society, Society of Photo-Optical and Instrumentation Engineers, Institution of Engineering and Technology, Royal Aeronautical Society, Royal Astronomical Society, International Association for the Advancement of Space Safety, and Asia-Pacific Artificial Intelligence Association. He holds 35 US patents.