Core Insights - VIAVI Solutions has launched the IRINS, a Low Earth Orbit (LEO)-aided inertial navigation system designed for full operation across land, air, and sea in denied, degraded, and disrupted space operating environments (D3SOE) [1][2] Group 1: Product Features - The IRINS integrates an inertial navigation system (INS), an altitude and heading reference system (AHRS), and a LEO PNT receiver, marking a significant advancement in VIAVI's assured Positioning, Navigation, and Timing (APNT) portfolio [1][4] - The system is designed to counter the increasing number of spoofing and jamming attacks affecting military and critical infrastructure, providing a resilient solution from a single vendor [2][3] - It combines capabilities to calculate altitude, position, velocity, and time data while minimizing bias to prevent drift, and includes a GNSS receiver with a Controlled Reception Pattern Antenna (CRPA) port for attack signal detection [4] Group 2: Strategic Importance - The IRINS represents VIAVI's strategy to mitigate vulnerabilities in positioning, navigation, and timing, integrating satellite-based timing with tactical-grade inertial measurement units (IMUs) for precise PNT in GNSS-denied environments [5] - Assured access to PNT is emphasized as critical for operations in contested environments, with the integration of Iridium PNT alongside VIAVI's INS and AHRS providing a resilient source of time and location data [5] Group 3: Technical Specifications - The IRINS is certified for IP67 and MIL-STD-810G environmental requirements, featuring a tactical-grade MEMS 3-axis accelerometer, gyroscope, and clock, along with embedded barometers and magnetometers [5] - The compact design measures 126.5 × 49.3 × 53.3 mm, housing all capabilities within a single enclosure [5]