Page 4 - EMCORE Navigation & Inertial Sensing Brochure
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Fiber Optic Gyro IRU & IMU

        EMCORE’s Fiber Optic Gyro (FOG) IRU & IMUs now include the products of the former L3Harris Space & Navigation, which has been
        the premier supplier of mission-critical precision pointing and navigation systems since the early days of the U.S. space program.
        This enables EMCORE to offer an even wider range of FOG inertial measurement unit products from tactical to strategic grade.

        CIRUS Compact Inertial Reference Units (IRU) for Space (CIRUS & CIRUS-EX)
        The CIRUS leverages over sixty years of experience and proven performance in systems de-
        ployed in space and is designed and qualified as the next-generation product. The CIRUS and
        CIRUS-EX rate sensors deliver two different strategic grades of performance combined with
        the benefits of a compact, low-cost system in an integral chassis. Both CIRUS and CIRUS-EX
        systems feature four FOG sensors in a fully redundant configuration.
        n  Two Performance Grades with Lowest   n  High-reliability Class S and K Rad-hard
           ARW <100 μ°/√hr                       Electronics
        n  Four Gyros and Dual A/B Electronics   n  Each Sensor is Individually Power-select-
           Provide Optimal Redundancy for Enhanced   able Providing Ultimate Flexibility for the   Applications
           Mission Success                       End User                             n  Spacecraft Attitude Control
        n  Dual-Redundant Serial Interfaces    n  User-selectable Thermal Set Points and   n  DoD, NASA and Commercial Missions
           (MIL-STD-1553 and RS-422) to Permit    Capability to execute “on-station” Com-
           Flexible I/O Rates                    mands for Optimal Situational Awareness

        CIRUS-A High-Performance FOG IMU

        The high-performance CIRUS-A FOG IMU is a state-of-the-art, strategic-grade inertial measure-
        ment unit for inertial navigation, guidance, pointing and stabilization of missile, space, sensor,
        ground, air, and marine applications. The CIRUS FOG IMU design simplifies the optical circuitry
        reducing the number of components while providing a significant performance improvement
        over standard military environments.
         Features/Benefits                          Applications
         n  Strategic-Grade Performance for a Variety   n  Platform stabilization
           of Applications                          n  Pointing applications
         n  Performance Enhances all EO/IR Platforms   n  Missile guidance systems
           Ability to Identify and Defeat Air and   n  Vehicle/platform navigation
           Ground Threats
                                                    n  Northfinder applications

        EN-300 Precision FOG IMU
        EMCORE’s EN-300 Precision FOG IMU is a higher accuracy inertial system that is form, fit, and
        function compatible with a legacy equivalent, but with the better performance needed for GPS
        denied navigation, precise targeting, and line-of-sight stabilization. This state-of-the-art design
        incorporates EMCORE’s proprietary integrated optics to enhance accuracy, providing up to ten
        times better performance than competing systems.

        Features/Benefits                              Applications
        n  Three-Axis, Precision Closed-Loop FOG IMU using    n  UAVs
           EMCORE’s Proprietary FOG Transceiver        n  Dismounted Soldier
        n  More than Double the Fiber Length of Legacy IMUs  n  Marine
        n  Three Precision MEMS Accelerometers with Greater   n  Ground Vehicle Navigation
           Pendulocity than Legacy Designs
                                                       n  Aeronautics and Civil Aviation
        n  Factory Programmable I/O with Exceptional Flexibility   n  Far Target Pointing-Stabilization
           and Performance Options that can be Tailored to
           Customer Requirements                       n  Applications Where GPS Unavailable

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