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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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Digital signal processing for an open-loop fiber-optic gyroscope.

Y Gronau, M Tur

    Applied Optics
    |November 10, 2010
    PubMed
    Summary
    This summary is machine-generated.

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    We present a modified harmonic division algorithm for open-loop fiber-optic gyroscopes (FOGs). This enhanced algorithm improves stability and simplifies implementation, matching closed-loop FOG performance using standard components.

    Area of Science:

    • Optics and Photonics
    • Sensor Technology
    • Inertial Navigation Systems

    Background:

    • Open-loop fiber-optic gyroscopes (FOGs) offer simpler designs but typically exhibit lower stability compared to closed-loop FOGs.
    • Existing harmonic division algorithms for open-loop FOGs have limitations in performance and implementation complexity.
    • Integrated optics circuits are often required for advanced FOG implementations, increasing cost and complexity.

    Purpose of the Study:

    • To propose a novel modification of the harmonic division algorithm for open-loop FOGs.
    • To enhance the stability and simplify the implementation of open-loop FOGs.
    • To achieve performance comparable to closed-loop FOGs without requiring integrated optics.

    Main Methods:

    • Modification of the existing harmonic division algorithm.

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  • Proper sampling and quantization of the analog signal from the FOG.
  • Implementation using readily available, off-the-shelf electronic components.

    • Main Results:

    • The modified algorithm demonstrates improved stability for open-loop FOGs.
    • The proposed method simplifies the implementation compared to previous algorithms.
    • Performance equivalent to closed-loop FOGs was achieved through proper signal processing.
    • The system can be built without specialized integrated optics circuits.

    Conclusions:

    • The modified harmonic division algorithm offers a more stable and simpler solution for open-loop FOGs.
    • This approach enables open-loop FOGs to reach the performance levels of closed-loop systems.
    • The use of off-the-shelf components makes this a cost-effective and accessible solution for improved FOG technology.