| 大尺度作物面积遥感监测中小地物的影响与双重抽样 |
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| 引用本文： | 吴全,杨邦杰,裴志远,王飞. 大尺度作物面积遥感监测中小地物的影响与双重抽样[J]. 农业工程学报, 2004, 20(3): 130-133 |
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| 作者姓名： | 吴全 杨邦杰 裴志远 王飞 |
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| 作者单位： | 中国农业大学工学院,北京,100083;中国农业工程研究设计院农业部农业资源监测总站,北京,100026;中国农业工程研究设计院农业部农业资源监测总站,北京,100026 |
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| 摘 要： | 在大尺度作物面积遥感监测中，一般采用抽样方法。由于小地物在影像上无法识别或难以量算，形成样本误差而影响总体面积的估计。改进的措施是采用双重抽样的方法，即在抽样设计中，首先控制作物样本精度，从而消除或减小小地物影响，进而获得较准确的作物面积绝对值。
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| 关 键 词： | 作物监测 遥感 小地物 双重抽样 |
| 文章编号： | 1002-6819(2004)03-0130-04 |
| 收稿时间： | 2004-01-14 |
| 修稿时间： | 2004-01-14 |
Influence of small features on crop area estimation at a national scale using remote sensing and a double sampling method |
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| Wu Quan,Yang Bangjie,Pei Zhiyuan and Wang Fei. Influence of small features on crop area estimation at a national scale using remote sensing and a double sampling method[J]. Transactions of the Chinese Society of Agricultural Engineering, 2004, 20(3): 130-133 |
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| Authors: | Wu Quan Yang Bangjie Pei Zhiyuan Wang Fei |
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| Abstract: | Sampling methods are normally used in crop area estimation using remote sensing at a national or provincial level. Because some small features in crops are difficult to identify or to measure on images, the errors influence the crop area estimation results. A double sampling method is suggested in this paper. The first step is to do a small features sampling in samples using GPS measurements and the total crop area is estimated using the more accurate samples. |
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| Keywords: | crop monitoring remote sensing small feature double-sampling |
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