无人驾驶车辆用列级时间-数字转换器单光子雪崩二极管阵列

2017 IEEE 2nd International Conference on Opto-Electronic Information Processing (ICOIP) Pub Date : 2017-07-07 DOI:10.1109/OPTIP.2017.8030697

Gang Xie, Yuan Xu, De-Liang Lian, Zilong Zhang, Jianguo Zhang

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引用次数: 3

摘要

本文介绍了一种针对无人车激光雷达的盖格模式SPAD阵列芯片的设计。为了减少后脉冲的数量，在每次雪崩后采用主动淬火使SPAD保持足够长的关闭时间。通过理论分析和仿真，将一列spad共用一个TDC，以提高光敏元件的填充系数。单片阵列芯片采用中芯国际0.13µm CIS CMOS技术设计。仿真结果表明，该传感器在保持较高测量精度的同时，帧速率可达30 fps以上，测量范围可达250 m以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Single-photon avalanche diode array with column-level time-to-digital converter for unmanned vehicle

This paper introduces a design of Geiger-mode SPAD array chip aiming at unmanned-vehicle LIDAR. In order to reduce the number of afterpulsings, active quenching is adopted to keep the SPAD off for a sufficiently long time after each avalanche. Through theory analysis and simulation, a TDC is shared by a column of SPADs to improve the fill factor of photosensitive parts. The monolithic array chip is designed in the SMIC 0.13 µm CIS CMOS technology. Simulations proved that the sensor has a frame rate of over 30 fps and a measurement range of 250 m above, while still keeping high measurement precision.

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2017 IEEE 2nd International Conference on Opto-Electronic Information Processing (ICOIP)

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