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Related Experiment Video

Updated: Aug 26, 2025

High-speed Particle Image Velocimetry Near Surfaces

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Long-range high-speed laser imaging based on VCSEL array and MPPC array.

Yumei Tang, Zeyu Fu, Runze Yang

|October 13, 2022

Summary

This summary is machine-generated.

This study introduces a new Flash LiDAR system for 3D imaging, achieving 120m detection range and 10kHz frame rate. The system demonstrates high performance in sunlight, suitable for autonomous driving and space applications.

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Last Updated: Aug 26, 2025

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Area of Science:

Optoelectronics
LiDAR technology
3D imaging systems

Background:

Flash LiDAR systems are crucial for autonomous driving and spacecraft control.
Achieving long-range, high-speed 3D imaging in outdoor, sunlit conditions presents significant challenges.

Purpose of the Study:

To develop and experimentally validate a novel Flash LiDAR prototype.
To assess the system's performance for long-range, high-speed 3D imaging applications.

Main Methods:

Development of a prototype using a 2×6 VCSEL array and a 32×32 MPPC image sensor.
Range calibration and experimental validation of the system's capabilities.
Implementation of time-gating techniques to enhance detection probability.

Main Results:

Achieved a frame rate of 10kHz and a detection probability of 86.23% at 120m.
Demonstrated 3D vehicle imaging at 70m with <5cm horizontal resolution and <10cm ranging precision (10-shot average).
Successfully performed 120m "laser imaging through window" in sunlight.

Conclusions:

The developed Flash LiDAR system offers a compact, lightweight, and fast solution for 3D imaging.
The system meets challenging requirements for long-range and high-speed outdoor applications.
The technology shows promise for enhanced autopilot and spacecraft flight control systems.