期刊文献+

地球与大气反射光对空间光学传感器探测能力的影响仿真研究 被引量:1

Research on Simulation for Influence of Earth and Atmosphere Reflected Light on Detect Ability of Space Optical Sensor
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摘要 现有辐射计算模型不考虑地表的各向异性特征,导致计算结果存在较大误差。针对这一问题,提出一种新的地球与大气反射光对传感器照度贡献的计算模型,考虑了地表反射、大气散射和辐射传输三方面的影响因素;在此基础上提出一种启发式蒙特卡罗重点光线采样方法,该方法根据给定的传感器参数和空间几何参数高效解算地球与大气反射光对空间光学传感器探测能力的影响程度。 Some errors are introduced into existing sensor radiance models due to ignoring the anisotropy of the earth surface.Aiming at this problem,a novel calculation model for sensor irradiance contribution,including effects of earth surface and atmosphere reflected light is proposed.This model takes three factors into account: earth surface reflection,atmospheric scattering and radiative transfer effect.Based on the model,a heuristic Monte Carlo predominant light sampling method is presented.Given parameters of sensor and spatial geometry,the influence of earth surface and atmosphere reflected light on space optical sensor can be calculated efficiently.
出处 《宇航学报》 EI CAS CSCD 北大核心 2011年第2期233-241,共9页 Journal of Astronautics
基金 国家863高技术研究发展计划(2009AA01Z303) 中国科学院知识创新方向性项目(KGCX3-SYW-407-01)
关键词 地球与大气反射光 空间光学传感器 辐射传输 蒙特卡罗 探测能力 Earth surface and atmosphere reflected light Space optical sensor Radiative transfer Monte carlo method
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参考文献18

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