Design of Ground Calibration Simulation System of Laser Altimeter

Journal of Atmospheric and Environmental Optics ›› 2017, Vol. 12 ›› Issue (4): 313-.

Design of Ground Calibration Simulation System of Laser Altimeter

ZHU Dazhen, ZHANG Yunjie, LI Xin, WEI Wei, QIU Ganggang, GUO Qingqing , ZHAO Wenxian

( Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China )

Received:2016-03-14 Revised:2016-03-21 Online:2017-07-28 Published:2017-07-19

Abstract

Abstract:

The space-borne laser altimeter can be widely used in a variety of scientific research of topography, such as ice sheet and vegetation cover change. For quantitative application of the space-borne laser altimeter data, the ground-based laser altimeter calibration method was investigated and a laser altimeter ground-based simulation system was designed. The system consists of detector arrays and high precision timing system for the verification of laser altimeter pointing angle and timing. The performance of the system is tested in the laboratory and simulated by software. Results show that the detector can detect the spot of average energy 3 nJ/cm2, and detection range is 1 ~ 16 nJ/cm2 with timing accuracy of 1.25 ns.

Key words: laser altimeter, ground-based calibration, footprint location, accuracy of timing

CLC Number:

TP731

ZHU Da-Zhen, ZHANG Yun-Jie, LI Xin, WEI Wei, QIU Gang-Gang, GUO Qing-Qing, DIAO Wen-Xian. Design of Ground Calibration Simulation System of Laser Altimeter[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(4): 313-.

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