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首页> 外文期刊>Optical engineering >Beam path intersections between two coplanar lidar scanners
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Beam path intersections between two coplanar lidar scanners

机译：两个共面利达扫描仪之间的光束路径交叉路口

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摘要

A mathematical description of the intersection of a transmitted beam and a beam-like field of view between two stationary, coplanar, circularly scanning light detection and ranging (lidar) devices is presented. This beam intersection information establishes when scattered signal interference between two lidar devices can occur. Such interference may result in erroneous range data. The fraction of time over which the scanners' beams intersect is analyzed as a function of rotational frequencies and their reference phases. It is shown that the minima and maxima of this fraction are 0 and 1 /2, with most configurations resulting near 1 /4. A procedure to adjust the scan rates and phases to minimize this intersection time (including zero intersection) thus reducing the risk of mutual interference is also outlined. Four configurations that produce zero intersection between two scanners are presented. Configurations of three and four scanners are also presented for which no intersections between the scanners' transmission paths occur.
机译：呈现了两个静止，共面，圆扫描光检测和测距（LIDAR）器件之间的发射光束和视野的交叉视野的数学描述。当可能发生两个LIDAR设备之间的散射信号干扰时，该光束交叉信息建立。这种干扰可能导致错误的范围数据。分析扫描仪光束交叉的时间的一部分作为旋转频率及其参考阶段的函数。结果表明，该分数的最小值和最大值为0和1/2，大多数配置导致接近1/4。还概述了调整扫描速率和阶段以最小化该交叉点（包括零交叉路口）的过程，从而概述了降低相互干扰的风险。呈现了在两个扫描仪之间产生零交叉点的四种配置。还介绍了三个和四个扫描仪的配置，因为扫描仪之间的传输路径之间没有交叉点。

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  • 来源
    《Optical engineering》 |2019年第3期|033103.1-033103.14|共14页
  • 作者

    Gerald B. Popko; Yijun Bao; Thomas K. Gaylord; Christopher R. Valenta;

  • 作者单位

    Georgia Institute of Technology School of Electrical and Computer Engineering Atlanta Georgia United States;

    Georgia Institute of Technology School of Electrical and Computer Engineering Atlanta Georgia United States;

    Georgia Institute of Technology School of Electrical and Computer Engineering Atlanta Georgia United States;

    Georgia Institute of Technology School of Electrical and Computer Engineering Atlanta Georgia United States Georgia Tech Research Institute Electro-Optical Systems Laboratory Atlanta Georgia United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    autonomous vehicles; laser detection and ranging; light detection and ranging; mutual interference; signal cross talk;

    机译：自治车辆;激光检测和测距;光检测和测距;相互干扰;信号串扰;

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