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高精度曲面建模:HASM4

DOI: 10.11834/jig.20070227

Keywords: 高精度曲面建模,数值实验,计算时间,模拟误差

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Abstract:

为了解决高精度曲面建模方法的速度问题,在大量数值实验的基础上,将模拟迭代方程HASM3改进为HASM4。分析结果表明,HASM4的CPU时间较HASM3有了大幅度的减少,而且随着计算域栅格总数的增加,这种减少幅度呈负幂指数规律;同时,随着计算规模的增大,HASM4达到收敛所需的迭代次数较HASM3达到收敛所需的迭代次数呈直线下降趋势。HASM4减少了模型计算量,提高了模型的运行速度,其模拟精度与HASM3相比也有一定幅度的提高。

References

[1]  YUE Tian-xiang,AI Nan-shan.A mathematical model for cirque surface[J].Glaciology and Cryopedology,1990,12(3):227 ~234.[岳天祥,艾南山.冰斗形态的数学模型[J].冰川冻土,1990,12(3):227~234.]
[2]  YUE Tian-xiang,LIU Ji-yuan.A digital model for transforming information at various scales[J].Journal of Images and Graphics,2001,6(9):907~911.[岳天祥,刘纪远.第四代地理信息系统研究中的尺度转换数字模型[J].中国图象图形学报,2001,6(9):907~911.]
[3]  YUE Tian-xiang,DU Zheng-ping,LIU Ji-yuan.High precision surface modeling and error analysis[J].Progress in Natural Science,2004,14(2):83~89.[岳天祥,杜正平,刘纪远.高精度曲面建模与误差分析[J].自然科学进展,2004,14(2):83~89.]
[4]  YUE Tian-xiang,CHEN Shu-peng,XU Bing,et al.A curve-theorem based approach for change detection and its application to Yellow River delta[J].International Journal of Remote Sensing,2002,23 (11):2283 ~ 2292.
[5]  YUE Tian-xiang,LIU Ji-yuan.Multi-scale issues of eco-geographical modeling[J].Quaternary Sciences,2003,23 (3):256 ~ 261.[岳天祥,刘纪远.生态地理建模中的多尺度问题[J].第四纪研究,2003,23(3):256~261.]
[6]  YUE Tian-xiang,LIU Ji-yuan.A digital model for multi-sources information fusion[J].World Sci-Tech R & D,2001,23(5):1 ~4.[岳天祥,刘纪远.多源信息融合数字模型[J].世界科技研究与发展,2001,23(5):1~4.]
[7]  YUE Tian-xiang,LIU Ji-yuan,WANG Yin-an.A grid-generation based method for information fusion[A].In:Integrated Assessment and Decision Support.Proceedings of the 1 st Biennial Meeting of the International Environmental Modelling and Software Society[C],Lugano,Switzerland,2002:127 ~ 132.
[8]  YUE Tian-xiang,DU Zheng-ping.High precision surface modeling:a core module of new generation CAD and GIS[J].Progress in Natural Science,2005,15(3):73~82.[岳天祥,杜正平.高精度曲面建模:新一代GIS与CAD的核心模块[J].自然科学进展,2005,15(3):73~82.]

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