Simulation research on full waveform acquisition method of high dynamic range lidar echo signal
For the high dynamic range of echo signals in some lidar systems,it can be challenging to achieve high per-formance acquisition of the strong and weak signals simultaneously.A hardware and software joint acquisition method is proposed,which uses a high-speed digitizer to acquire the full waveform and then deals with the algorithm software.For the software photon counting algorithm,a dynamic voltage threshold selection method is also proposed to improve the counting accuracy.The simulation model of devices in the full-link of photoelectric detection and acquisition is established to compare and verify the feasibility of the methods.Based on a set of typical parameters of preferred devices,the simula-tion compared the acquisition errors of the full waveform acquisition method with the existing methods,verifying the ef-fectiveness and technical advantages of the full waveform acquisition method and the dynamic threshold selection algo-rithm.This research provides a novel idea for the detection of weak optical signals with high dynamic range by leveraging a synergistic combination of hardware and software techniques.
remote sensing and sensorslidarhigh-speed acquisitionhigh dynamic rangephoton counting
NETL
NSTL
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