Dr. Tianshu Zhang Profile

Dr. Tianshu Zhang

Director of the Light Scattering Lab at Anhui Institute of Optics and Fine Mechanics

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Publications (7)

SPIE Journal Paper | 28 December 2021

Observation of the low-altitude cloud characteristics with Mie scattering Lidar at the Great Wall Station, Antarctica

Yuchen Shi, Yunsheng Dong, Wenqing Liu, Tianshu Zhang, Xuesong Zhao, Yibin Fu, Guangqiang Fan, Lihui Lv, Yan Xiang

JARS, Vol. 15, Issue 04, 048507, (December 2021) https://doi.org/10.1117/12.10.1117/1.JRS.15.048507

KEYWORDS: Clouds, LIDAR, Mass attenuation coefficient, Backscatter, Atmospheric particles, Aerosols, Signal attenuation, Atmospheric modeling, Mie scattering, Meteorology

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Proceedings Article | 19 October 2016 Paper

Measurements of density, pressure and temperature in the middle atmosphere with Rayleigh lidar

Pan Deng, Tianshu Zhang, Wei Chen, Jianguo Liu

Proceedings Volume 10155, 101550C (2016) https://doi.org/10.1117/12.2243974

KEYWORDS: LIDAR, Temperature metrology, Rayleigh scattering

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Proceedings Article | 18 November 2014 Paper

Lidar signal de-noising by singular value decomposition

Huanxue Wang, Jianguo Liu, Tianshu Zhang

Proceedings Volume 9299, 929910 (2014) https://doi.org/10.1117/12.2072683

KEYWORDS: LIDAR, Signal processing, Interference (communication), Signal to noise ratio, Filtering (signal processing), Electronic filtering, Smoothing, Computer simulations, Signal analyzers, Backscatter

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Proceedings Article | 18 November 2014 Paper

The design and study of a new micropulse Lidar

Lihui Lü, Wenqing Liu, Tianshu Zhang, Yihuai Lu, Yunsheng Dong, Zhenyi Chen, Guangqiang Fan, Shaoshuai Qi

Proceedings Volume 9299, 929907 (2014) https://doi.org/10.1117/12.2070192

KEYWORDS: LIDAR, Optical fibers, Aerosols, Mass attenuation coefficient, Atmospheric particles, Telescopes, Atmospheric optics, Atmospheric sensing, Pollution, Signal attenuation

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Micro pulse lidar(MPL) is an effective tool for atmospheric aerosol and cloud detecting. In order to make the structure of the micro pulse lidar more compact, solve the problem that it always very difficult to adjust the transmitting and receiving optical paths to parallel in the traditional system, avoid the influence of the geometric overlap factor and reduce the complexity of the data processing, Anhui institute of optics and fine mechanics of the Chinese academy of sciences designs a new type of micro pulse lidar, particularly designs the followed up optical unit of the micro pulse lidar. A combination of emitting and receiving fibers in a signal bundle changes the structure of the subsequent optical unit in the traditional system to make the transmitting and receiving optical paths coaxial. The public end of the Y type optical fiber bundle is composed of a transmitting optical fiber in the center and eight receiving optical fibers in the periphery. After a brief introduction of the new system, the key parameters of the new micro pulse lidar system and the Y type optical fiber bundle were described in some detail. In order to verify the feasibility of the new structure of the micro pulse lidar system, a continuous observation experiment was carried out in Hefei area to detect the horizontal distribution of the atmospheric aerosol and pollutions. The data measured in the experiment in the November 2013 was processed with Fernald method and the profile of the atmospheric aerosol horizontal extinction coefficient distribution was inverted. The data inversion results showed that: the data acquired by the new lidar system and the extinction coefficient distribution inverted by Fernald algorithm are all very reasonable, and the time-space distribution of atmospheric aerosols extinction coefficient can reflect the distribution of the atmospheric aerosol and pollutions near the ground effectively. All of the experiment results indicate that the design of the new micro pulse lidar system is effective.

Proceedings Article | 5 December 2012 Paper

Continuous field measurements of [delta]D in water vapor by open-path Fourier transform infrared spectrometry

Wei Wang, Wenqing Liu, Tianshu Zhang

Proceedings Volume 8562, 85621B (2012) https://doi.org/10.1117/12.981998

KEYWORDS: FT-IR spectroscopy, Spectroscopy, Humidity, Infrared spectroscopy, Temperature metrology, Infrared radiation, Sensors, Absorption, Atmospheric optics, Carbon dioxide

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Proceedings Article | 27 November 2007 Paper

Line-by-line trace gas absorption model and its application for NDIR gas detection technology

Jing Fang, WenQing Liu, TianShu Zhang, WeiWei Feng

Proceedings Volume 6723, 67232S (2007) https://doi.org/10.1117/12.783329

KEYWORDS: Carbon monoxide, Absorption, Sensors, Thermal modeling, Atmospheric modeling, Signal detection, Spectral resolution, Gas sensors, Transmittance, Databases

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Proceedings Article | 12 May 2005 Paper

Research on analyzing atmospheric trasmittance based on infrared radiation measurements

Jun Zhu, Wenqing Liu, Yihuai Lu, Minguang Gao, Xueshong Zhao, Tianshu Zhang, Liang Xu

Proceedings Volume 5832, (2005) https://doi.org/10.1117/12.619497

KEYWORDS: Carbon dioxide, Black bodies, Spectroscopy, Calibration, Atmospheric monitoring, FT-IR spectroscopy, Transmittance, Absorption, Analytical research, Infrared radiation

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Showing 5 of 7 publications

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