激光雷达
雪崩二极管
单光子雪崩二极管
雪崩光电二极管
二极管
电压
周长
闪光灯(摄影)
蒙特卡罗方法
探测器
光学
图像传感器
击穿电压
光电子学
物理
工程类
电气工程
几何学
数学
统计
作者
Nazish Irfan,Mst Shamim Ara Shawkat
标识
DOI:10.1109/dcas61159.2024.10539913
摘要
This paper presents a new analytical model for a Light Detection and Ranging (LiDAR) system using perimeter-gated single photon avalanche diodes (SPADs) based flash sensors. We have developed a Monte Carlo simulator to analyze the performance of perimeter-gated SPADs based LiDAR system for low-light scenarios. A perimeter-gated SPAD is an upgraded version of a Single Photon Avalanche Diode (SPAD). It has a third terminal, a gate, to reduce the perimeter edge breakdown without unduly expanding the device's surface area. In addition, dark count rate, breakdown voltage, and dynamic range characteristics are all can be modified by the applied gate voltage. The simulation environment has been designed to precisely simulate the parts of a flash LiDAR system, including the optics, illumination source, and the perimeter-gated SPAD-based CMOS image sensor architecture. Results show that the applied gate voltage of the perimeter-gated SPAD improves the noise performance in the LiDAR system.
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