基于微通道板的单光子激光测高技术研究  

Photon-Counting Laser Altimetry Based on Microchannel Plate

作　　者：米小什 赵惠[1] 樊学武[1] 盛立志[1] Mi Xiaoshi;Zhao Hui;Fan Xuewu;Sheng Lizhi(Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an,Shaanxi 710119,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院西安光学精密机械研究所,陕西西安710119 [2]中国科学院大学,北京100049

出　　处：《光学学报》2018年第12期342-352,共11页Acta Optica Sinica

摘　　要：与传统的激光测高技术相比,单光子激光测高技术具有数据量大、质量轻、测距精度高等优势,是激光测高技术的发展趋势。建立数学模型对单光子激光测高特性进行研究,用数值计算估计了单光子激光测高的性能,并建立了地物模型,用蒙特卡罗方法进行了仿真,提出了测高数据的滤波方法和一种利用遥感图像优化高程信息的算法。结果表明:在正午阳光背景最强烈的条件下,典型地物模型单光子激光测高的均方根误差为6.1cm,用算法优化后的误差为2.6cm。Compared with the traditional laser altimetry technology, the photon-counting laser altimetry technology has the advantages of large data, light weight, and high ranging precision, which is the development trend of laser altimeter technolgoy. In this paper, we establish a mathematical model to study the characteristics of the photon-counting laser altimetry. The performance of the photon-counting laser altimeter is estimated by numerical calculation. The ground object model is established, and the simulation is carried out with Monte Carlo method. A filtering method for the altimetry data and an algorithm for optimizing the elevation information using the remote sensing images are proposed. The results show that the root-mean-square error of the photon-counting laser altimeter is 6.1 cm under the condition of the noonday background with the most intense sun for the typical ground model, and the error after optimization by the algorithm is 2.6 cm.

关 键 词：测量 激光测高 单光子探测 微通道板 

分 类 号：TN249[电子电信—物理电子学]