Resilient PNT

High-stability local time bases for timing continuity and predictable holdover in GNSS-degraded environments

Jamming, spoofing, blockage, and denied environments mean “GNSS is always available” is no longer a safe design assumption. The core question of Resilient PNT: after signal loss, how small an error can your system hold, and for how long? The answer depends on how the holdover error budget is constructed—and on the class of oscillator carrying the holdover duty, from high-stability OCXOs to atomic clocks. Taitien supports zoned timing architectures that partition selection across the holdover core, endpoint reference, mission reference, and clock-tree synthesis layers—translating resilience requirements into verifiable component specifications.

  • Holdover Core: double oven DOCXOs, disciplined OCXOs, and GNSSDOs, with aging down to ±0.05 ppb/day, supporting PTP Grandmasters and critical infrastructure timekeeping
  • Mission-grade atomic clocks: ultra-low-power CSACs for holdover beyond 6 hours
  • PNT Endpoint: commercial and automotive TCXOs up to low g-sensitivity TCXOs/VCTCXOs, covering UAV, RTK rover, and INS/GNSS fusion
  • Mission Reference: low g-sensitivity OCXOs serving as master references for SATCOM, radar, aviation, and maritime systems
  • Smooth recovery: hitless switching and controlled re-disciplining, keeping phase jumps out of the downstream clock tree

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