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    Area of Science:

    • Optics and Photonics
    • Computer Graphics
    • Simulation Technology

    Background:

    • Ladar scene projectors are crucial for hardware-in-the-loop (HWIL) simulation systems.
    • Efficient ladar scene modeling is essential for developing these projectors.

    Purpose of the Study:

    • To propose a novel ladar scene modeling method.
    • To enhance the real-time performance of ladar scene projectors in HWIL systems.

    Main Methods:

    • Physically based rendering technology
    • OpenGL graphics library
    • Simulation of a 100x100 array ladar scene (0-3 km range)

    Main Results:

    • Rapid generation of delay, amplitude, and pulse width data for ladar return signals.
    • Average data generation time of 5.31 ms.
    • Achieved distance resolution of 1.5 m and peak-valley error < 0.15 m.

    Conclusions:

    • The proposed method enables efficient ladar scene modeling.
    • Achieves fast hardware update rates, significantly improving HWIL simulation real-time performance.
    • Demonstrates strong practicality for direct application in HWIL systems.