邻近辐射的精确计算研究Research on calculating adjacent radiance with high precision
曹阿娜,黄微,李先华
摘要(Abstract)：
简化或积分算法计算邻近辐射,对山区或处于近红外波段的植被等情况产生较大误差。尽管近似离散求和算法考虑了所有因子,然而由于算法的复杂性,未做出更加详尽细致的分析。针对上述问题,本文在考虑每个邻近像素地表单元的辐射对目标像素影响的基础上,重点分析了在一定的范围内所有与目标地表单元通视且朝向目标地表单元的邻近像素,同时考虑搜索半径的问题。试验证明,该算法获得比传统算法更加精确的邻近辐射计算结果。
关键词(KeyWords)： 邻近辐射;可视域;数字高程模型
基金项目(Foundation): 国家自然科学基金项目(60672053);; 国土资源部项目(KD081902-03)子课题
作者(Author): 曹阿娜,黄微,李先华
DOI: 10.16251/j.cnki.1009-2307.2010.06.043
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