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EGI Advantages

More robust navigation solution than federated systems

    • Single Kalman Filter in system vs multiple Filters feeding data to an additional mission computer for a solution

Better performance in an interference/jamming environment

    • Relaxed data synchronization requirements
    • GPS data can be utilized to contain INS solution when less than 4 satellites are available

Improved resistance to jamming

    • Satellite tracking improved by aiding the carrier loop with data from the Kalman Filter
    • Faster reacquisition after jamming
Smaller size, less weight, lower cost than multiple separate INS and GPS systems

Improved reliability and reduced life cycle costs

    • Fewer LRUs / WRAs

Potential for easier upgrading of cards vs systems

    • Increased processing required for JPALS
    • SAASM & MGUE GPS upgrades
    • Fiber Optic Gyro (FOG)
    • Obsolescence solutions

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