Optical Clocks Enabling Resilient GPS with Millimeter-Precise Positioning and Picosecond Timing Accuracy

Y. Ni
Lunetronic, California, United States

Keywords: Anti-jamming GPS, anti-spoofing GPS, Optical Atomic Clocks, Space-grade lasers, Time Synchronization

Lunetronic is building a next-generation GPS constellation based on optical quantum clocks, offering up to a three-order-of-magnitude improvement in precision and fundamentally new resilience compared to legacy GPS systems. Traditional GPS relies on microwave-band atomic clocks, which provide meter-level navigation accuracy and nanosecond-level timing. These systems are increasingly vulnerable to jamming, spoofing, limiting their effectiveness for modern applications such as autonomous vehicles, precision agriculture, financial transactions, and critical infrastructure. Our optical-band quantum clocks offer a quantum leap in performance, achieving millimeter-level navigation precision and picosecond-level timing. This enables rapid positioning convergence, highly reliable synchronization for communication satellites, and robust navigation for land, air, and maritime applications. In addition, our system provides resilience against malicious interference in the form of signal jamming or spoofing, ensuring secure and continuous operation even in contested or challenging environments. To maximize adoption, the constellation design is fully backward-compatible with existing GPS terminals, allowing seamless integration with consumer and industrial devices while providing advanced capabilities for high-demand users through proprietary optical receivers. By addressing both the precision and vulnerability limitations of legacy GPS, proposed quantum clock technology will redefine navigation and timing services globally, unlocking new possibilities for industry, defense, and critical infrastructure.