31 October 2016 Research of nonlinear simulation on sweep voltage of streak tube imaging lidar
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Abstract
In order to study the influence of nonlinear sweep voltage on the range accuracy of streak tube imaging lidar, a nonlinear distance model of streak tube is proposed. The model of the parallel-plate deflection system is studied, and the mathematical relation between the sweep voltage and the position of the image point on the screen is obtained based on the movement rule of phoelectron. And the mathematical model of the sweep voltage is established on the basis of its principle. The simulation of streak image is carried out for the selected staircase target, the range image of the target can be reconstructed by extremum method. Comparing reconstruction result and actual target, the range accuracy caused by the nonlinear sweep voltage is obtained. The curve of the errors varying with target ranges is also obtained. And the range accuracy of the system is analyzed by the means of changing the parameter relate to sweep time.
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Qian Zhai, Shao-kun Han, Yu Zhai, Jie-yu Lei, Jian-feng Yao, "Research of nonlinear simulation on sweep voltage of streak tube imaging lidar", Proc. SPIE 10020, Optoelectronic Imaging and Multimedia Technology IV, 100201H (31 October 2016); doi: 10.1117/12.2248664; https://doi.org/10.1117/12.2248664
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