FPGA-Accelerated Precision Time Protocol

This IRAD proposes to demonstrate an FPGA-accelerated implementation of Precision Time Protocol (PTP) v2.1 achieving sub microsecond accuracy for distributed spacecraft and lunar surface systems, addressing a critical gap in Earth-independent exploration infrastructure. Current approaches, Pulse-Per-Second (PPS) and Network Time Protocol (NTP), lack either absolute time distribution or necessary precision for autonomous coordination of distributed assets. PTP v2.1 delivers over 1000 times greater accuracy than NTP through hardware-timestamping at the physical layer, providing a robust timescale format with UTC offset support that enables Lunar Time Coordinated (LTC) distribution across lunar infrastructure. By developing flight-optimized FPGA components implementing frequency and phase correction in hardware, this effort establishes a reusable architecture deployable from individual spacecraft to distributed lunar networks, directly supporting ASSET Priority #5: "Exploration Enabling Systems" and enabling the sub microsecond time synchronization required for coordinated robotic operations, distributed sensor fusion, precision localization, and coordinated power distribution without Earth-in-the-loop commanding. Building on Goddard's heritage in flight-proven FPGA implementations and role in LCRNS architecture development, this IRAD matures precision timing capabilities essential for NASA's Ignition Initiative lunar surface operations, positioning Goddard as the center of excellence for timing infrastructure in Earth-independent exploration.

FPGA-accelerated PTP v2.1 achieving sub microsecond accuracy for distributed spacecraft and lunar surface systems; reusable architecture from individual spacecraft to distributed lunar networks; enables Lunar Time Coordinated (LTC) distribution across lunar infrastructure; >1000× greater accuracy than NTP.

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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