| 地图数字化数据误差的NL分布检验 |
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| 引用本文： | 孟晓林,刘大杰.地图数字化数据误差的NL分布检验[J].同济大学学报(自然科学版),1996,24(5):525-529. |
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| 作者姓名： | 孟晓林 刘大杰 |
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| 作者单位： | [1]同济大学道路与交通工程系 [2]同济大学测量系 |
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| 摘 要： | 根据地图数字化随机误差的性质异于正态和Ｌａｐｌａｃｅ分布的性质，推导出服从正态分布和Ｌａｐｌａｃｅ分布的组合分布－ＮＬ分布随机误差的密度函数和数字特征的计算方法。结合三幅地图数字化实例，作者采用ｘ＾２的Ｋｏｌｍｏｇｏｒｏｖ检验进行ＮＬ分布拟合检验，得出地图数字化随机误差服从ＮＬ分布的结论这些工作对解决地理信息系统精度与质量控制等问题具有理论和实际应用价值。
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| 关 键 词： | 地图 数字化误差 数据误差 NL分布检验 |
NL Distribution Tests of Map Digitization Errors |
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| Meng Xiaolin,Liu Dajie, Zhu Zhaohong.NL Distribution Tests of Map Digitization Errors[J].Journal of Tongji University(Natural Science),1996,24(5):525-529. |
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| Authors: | Meng Xiaolin Liu Dajie Zhu Zhaohong |
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| Abstract: | Based on the fact that the characteristic of map digitization error is different from that of normal distribution, the authors conducted NL distribution density function and calculated NL probability distribution table. Combining threemap digitization samples and Chi-square and Kolmogorov test, the authors also reached the conclusion that the random error of map digitization obeys NL distribution. All the research work is essential to achieve GIS quality control. |
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| Keywords: | GIS NL distribution fit test Precision evaluation Quality control |
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