Dr. Lei Du Profile

Dr. Lei Du

at National Institute of Metrology

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 7 March 2019 Paper

Field test method and standard instruments for verification of traffic speed meters based on test vehicle

Lei Du, Qiao Sun, Jie Bai, Zhe Fan

Proceedings Volume 11053, 110534F (2019) https://doi.org/10.1117/12.2513377

KEYWORDS: Sensors, Global Positioning System, Doppler effect, Radar, Radar sensor technology, Roads, Metrology, Calibration, Standards development, Legal

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Proceedings Article | 7 March 2019 Paper

Online test method and standard instruments for verification of traffic speed meters based on actual traffic

Lei Du, Qiao Sun, Jie Bai, Zhe Fan

Proceedings Volume 11053, 110534E (2019) https://doi.org/10.1117/12.2513376

KEYWORDS: Sensors, Radar, 3D imaging standards, Error analysis, Metrology, Roads, Photography, 3D acquisition, Signal processing, Radar signal processing

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Proceedings Article | 7 March 2019 Paper

Establishment of standard device for high rotational speed generation

Qiao Sun, Jie Bai, Lei Du, Zhe Fan, Hongbo Hu

Proceedings Volume 11053, 110530U (2019) https://doi.org/10.1117/12.2517180

KEYWORDS: Calibration, Control systems, Standards development, Field programmable gate arrays, Process control, Metrology, Scientific research, Sensors

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Proceedings Article | 6 March 2015 Paper

Uncertainty evaluation for field experimental standard of vehicle speed-measuring devices in actual traffic

Lei Du, Qiao Sun, Yin Bai, Jie Bai, Changqing Cai, Yue Zhang

Proceedings Volume 9446, 94460H (2015) https://doi.org/10.1117/12.2087004

KEYWORDS: Radar, Error analysis, Signal processing, Doppler effect, Metrology, Sensors, Distance measurement, Standards development, Photography, Time metrology

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