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High definition 3D imaging LIDAR system using CCD

机译：使用CCD的高清3D成像LIDAR系统

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摘要

In this study we propose and demonstrate a novel technique for measuring distance with high definition three-dimensional imaging. To meet the stringent requirements of various missions, spatial resolution and range precision are important properties for flash LIDAR systems. The proposed LIDAR system employs a polarization modulator and a CCD. When a laser pulse is emitted from the laser, it triggers the polarization modulator. The laser pulse is scattered by the target and is reflected back to the LIDAR system while the polarization modulator is rotating. Its polarization state is a function of time. The laser-return pulse passes through the polarization modulator in a certain polarization state, and the polarization state is calculated using the intensities of the laser pulses measured by the CCD. Because the function of the time and the polarization state is already known, the polarization state can be converted to time-of-flight. By adopting a polarization modulator and a CCD and only measuring the energy of a laser pulse to obtain range, a high resolution three-dimensional image can be acquired by the proposed three-dimensional imaging LIDAR system. Since this system only measures the energy of the laser pulse, a high bandwidth detector and a high resolution TDC are not required for high range precision. The proposed method is expected to be an alternative method for many three-dimensional imaging LIDAR system applications that require high resolution.
机译：在这项研究中，我们提出并演示了一种使用高清三维成像技术测量距离的新颖技术。为了满足各种任务的严格要求，空间分辨率和范围精度是闪光灯LIDAR系统的重要属性。提出的LIDAR系统采用偏振调制器和CCD。当从激光器发射激光脉冲时，它将触发偏振调制器。激光脉冲被目标散射，并在偏振调制器旋转时反射回LIDAR系统。它的极化状态是时间的函数。激光返回脉冲以一定的偏振态通过偏振调制器，并且利用由CCD测量的激光脉冲的强度来计算偏振态。因为时间和极化状态的函数是已知的，所以极化状态可以转换为飞行时间。通过采用偏振调制器和CCD，并且仅测量激光脉冲的能量以获得范围，通过所提出的三维成像LIDAR系统可以获取高分辨率的三维图像。由于该系统仅测量激光脉冲的能量，因此不需要高带宽检测器和高分辨率TDC以实现高范围精度。对于许多需要高分辨率的三维三维成像激光雷达系统应用，该方法有望成为一种替代方法。

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  • 来源
    《Sensors, systems, and next-generation satellites XX》|2016年|100001Y.1-100001Y.6|共6页
  • 会议地点 Edinburgh(GB)
  • 作者

    Sungeun Jo; Hong Jin Kong; Hyochoong Bang;

  • 作者单位

    Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea;

    Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, South Korea;

    Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    flash LIDAR; flash laser radar; 3D imaging; CCD;

    机译：闪光激光雷达闪光激光雷达3D成像； CCD;

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