激光脉冲回波模拟综述:从理论建模到半实物仿真的演进与挑战OA

Laser pulse echo emulation is a key technology for the validation of lidar system and environment modeling,which is widely used in the fields of autonomous driving and remote sensing.The technical evolution of laser echo emulation,from theoretical models to hardware-in-the-loop systems,is comprehensively reviewed in this work.In terms of theoretical modeling,the multipath propagation and waveform distortion mechanisms caused by Rayleigh and Mie scattering in non-ideal media are analyzed,and the advantages of Monte Carlo method and neural radiation field method in modeling accuracy and emulation continuity are introduced.In terms of hardware-in-the-loop emulating,time delay emulation is mainly focused,the system characteristics of fiber-optic delay lines and high-speed electronic modulation methods are compared,and the emulation performance and hardware adaptability of multiple modulation mechanisms are further summarized.Finally,the current challenges of timing control,energy nonlinearity and system integration are summarized,and the development direction of data-driven modeling and optoelectronic fusion is envisioned.