Optics and Precision Engineering, Volume. 26, Issue 1, 245(2018)
Visual passive ranging system based on target feature size
In order to overcome the shortage of traditional optical passive ranging system such as low stability, difficult to guarantee insufficient ranging accuracy in long-distance condition and difficult to reduce the system volume and weight, a method for visualization of optical passive ranging system based on target feature size was presented in this paper. Passive ranging model was established and ranging principle was analyzed. Theoretical analysis was carried out to obtain the distance inversion formula and the ranging error accuracy. Through hardware and software design, the visual passive ranging function of the system was achieved and the all-weather image information acquisition was realized. Finally, target distance was retrieved by the target feature size and the imaging system parameters, real-time ranging was realized during the imaging process, and the passive ranging experiment was carried out. Experimental results show that the accuracy of passive ranging is better than 10%. Under the current hardware and software configuration, the target ranging distance is greater than 1km. The method has good robustness and stable performance. It can be widely used in the practical engineering of all-weather target imaging information acquisition and photoelectric passive ranging.
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YANG Jin-bao, YANG Chen, LIU Jian-guo, ZHU Ning-hua, YU Li-juan, LIU Ya-chao. Visual passive ranging system based on target feature size[J]. Optics and Precision Engineering, 2018, 26(1): 245
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Received: Jul. 6, 2017
Accepted: --
Published Online: Mar. 14, 2018
The Author Email: YANG Jin-bao (yangjinbao20054723@126.com)