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Spatial filtering self-velocimeter for vehicle application using a CMOS linear image sensor

机译：使用CMOS线性图像传感器的车辆应用空间滤波自动测速仪

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摘要

The idea of using a spatial filtering velocimeter (SFV) to measure the velocity of a vehicle for an inertial navigation system is put forward. The presented SFV is based on a CMOS linear image sensor with a high-speed data rate, large pixel size, and built-in timing generator. These advantages make the image sensor suitable to measure vehicle velocity. The power spectrum of the output signal is obtained by fast Fourier transform and is corrected by a frequency spectrum correction algorithm. This velocimeter was used to measure the velocity of a conveyor belt driven by a rotary table and the measurement uncertainty is ~0.54%. Furthermore, it was also installed on a vehicle together with a laser Doppler velocimeter (LDV) to measure self-velocity. The measurement result of the designed SFV is compared with that of the LDV. It is shown that the measurement result of the SFV is coincident with that of the LDV. Therefore, the designed SFV is suitable for a vehicle self-contained inertial navigation system.
机译：提出了使用空间滤波速度计（SFV）来测量惯性导航系统的车辆速度的想法。提出的SFV基于具有高速数据速率，大像素尺寸和内置定时发生器的CMOS线性图像传感器。这些优点使图像传感器适合于测量车辆速度。输出信号的功率谱通过快速傅立叶变换获得，并通过频谱校正算法进行校正。该测速仪用于测量由旋转工作台驱动的传送带的速度，测量不确定度约为0.54％。此外，它还与激光多普勒测速仪（LDV）一起安装在车辆上以测量自速。将设计的SFV的测量结果与LDV的测量结果进行比较。结果表明，SFV的测量结果与LDV的测量结果一致。因此，设计的SFV适用于车辆自包含的惯性导航系统。

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  • 来源
    《Optical engineering》 |2015年第3期|034110.1-034110.6|共6页
  • 作者

    Xin He; Jian Zhou; Xiaoming Nie; Xingwu Long;

  • 作者单位

    National University of Defense Technology, College of Optoelectronic Science and Engineering, Department of Optoelectronic Engineering, No. 109 Deya Road, Kaifu District, Changsha 410073, China;

    National University of Defense Technology, College of Optoelectronic Science and Engineering, Department of Optoelectronic Engineering, No. 109 Deya Road, Kaifu District, Changsha 410073, China;

    National University of Defense Technology, College of Optoelectronic Science and Engineering, Department of Optoelectronic Engineering, No. 109 Deya Road, Kaifu District, Changsha 410073, China;

    National University of Defense Technology, College of Optoelectronic Science and Engineering, Department of Optoelectronic Engineering, No. 109 Deya Road, Kaifu District, Changsha 410073, China;

  • 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

    spatial filtering velocimeter; image sensor; power spectrum; measurement uncertainty; inertial navigation system;

    机译：空间滤波测速仪图像传感器;功率谱测量不确定度;惯性导航系统;

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