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Ranging analysis of a moving target based on the dynamic instrument response function.

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    Accurately ranging high-speed moving targets is difficult for single-photon ranging systems (SPRS). This study introduces a dynamic discrete model (DDM) using a dynamic instrument response function (IRF) to improve ranging accuracy for SPRS.

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    Area of Science:

    • Photonics
    • Optical Engineering
    • Signal Processing

    Background:

    • Single-photon ranging systems (SPRS) face challenges in accurately measuring distances to high-speed moving targets.
    • Existing methods struggle with the dynamic nature of target motion and system response variations.

    Purpose of the Study:

    • To enhance the ranging accuracy of SPRS for high-speed moving targets.
    • To develop a novel dynamic discrete model (DDM) for improved target tracking.

    Main Methods:

    • Introduction of a dynamic instrument response function (IRF) to account for target velocity and system timing resolution.
    • Establishment of a dynamic discrete model (DDM) based on the dynamic IRF.
    • Validation using dynamic Monte Carlo (DMC) simulations.

    Main Results:

    • The proposed DDM significantly improves the accuracy of cross-correlation results in ranging.
    • Ranging accuracy is demonstrably enhanced when utilizing the DDM with DMC data.
    • The model effectively compensates for target dynamics and system timing variations.

    Conclusions:

    • The dynamic discrete model (DDM) offers a robust solution for improving the ranging accuracy of SPRS with high-speed moving targets.
    • Incorporating a dynamic instrument response function (IRF) is crucial for addressing target velocity.
    • This approach enhances the reliability and precision of photon-based ranging technologies.