Chronos is a flexible multidomain sensing platform that enhances situational awareness across air, maritime, and unmanned operations. It combines multiple cooperative surveillance modalities into a single operating picture, giving operators a clearer view of traffic across sea and sky.
Available in passive and active architectures, Chronos provides scalable surveillance while minimizing unnecessary transmissions and dependence on existing infrastructure.
Chronos delivers situational awareness through a three-stage process: Detect, Verify, and Validate. Together, these capabilities give operators a more trusted, tamper-resistant picture of air, maritime, and unmanned traffic.
ADS-B
Mode A/C Transponder
AIS
Remote ID
Detect cooperative air, maritime, and unmanned traffic.
Chronos monitors ADS-B, Mode A/C/S, AIS, and Remote ID signals to provide gap-filler surveillance in remote, terrain-masked, and infrastructure-limited environments.
Chronos' rapidly deployable design provides an independent operating picture for defense and security, UAS operations, disaster relief, search and rescue, and wildfire response.
Independently locate traffic.
Chronos uses multilateration and phased-array bearing measurements to independently determine where transmissions originate without relying on the position reported by the target.
For assured positioning, navigation, and timing, active Chronos ground stations at known locations act as reference beacons for an onboard passive Chronos receiver, supporting APNT when GNSS is unavailable or untrusted.
Validate position against the target's reported location.
Chronos compares independently derived RF positions against ADS-B, AIS, or Remote ID reports to identify discrepancies and potential spoofing.
For transponder-equipped aircraft, Chronos fingerprints ANSP SSR interrogations to independently derive the aircraft's position and cross-check it against its ADS-B-reported location.
Chronos leverages local secondary surveillance radar, intercepting aircraft transponder replies, while also receiving other broadcast signals to build a common operating picture.
Multiple Chronos stations networked into a scalable wide area MLAT (WAM) system, expanding coverage while minimizing infrastructure, maintenance, and operating costs.
A phased-array architecture is under development. It provides precise tracking using directional sensing, angle-of-arrival measurements, and improved target localization from a single station.
Multiple Chronos stations can be networked into a scalable wide-area multilateration (WAM) system, expanding coverage while minimizing infrastructure, maintenance, and operating costs. The system will employ a listen-whisper-shout protocol to reduce frequency-band congestion.
An active phased-array architecture is under development to provide precise tracking using single-site bearing estimation, angle-of-arrival measurements, and improved target localization without reliance on local secondary surveillance radar infrastructure.
The Chronos platform is compact, lightweight, and highly portable, allowing rapid deployment across a wide range of operational environments. Its flexible architecture supports installation across multiple platform types.
Suitable for fixed, mobile, or temporary sites.
Extends line-of-sight coverage and enables elevated sensing over remote and obstructed environments.
Mobile maritime platform for extended offshore surveillance.
Delivers enhanced situational awareness and expanded surveillance coverage for crewed and unmanned aviation operations.
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