搜索结果: 1-4 共查到“工学 Spatial Sampling”相关记录4条 . 查询时间(0.136 秒)
OPTIMIZED DESIGNS OF FRAMEWORKS AND ELEMENTS IN SPATIAL SAMPLING FOR CROP AREA ESTIMATION
Sampling Techniques Sampling Frame Sampling Efficiency Sample-Square Dimension Sample Size
2015/12/28
The experiments were conducted for monitoring crop area by spatial sampling methods in a winter wheat main production region with a size of 42Km×42Km in Hengshui City, Hebei Province in China to optim...
A PRELIMINARY STUDY ON SPATIAL SAMPLING FOR TOPOGRAPHIC DATA
Gaussian Filter Spatial Sampling Error Surface Topographic Data
2015/9/28
In this paper, an effective spatial sampling method is preliminary explored to assess the quality of the topographic data. The most novel idea in this study is we think the error as noise in the signa...
OPTIMIZATION OF DECISION-MAKING FOR SPATIAL SAMPLING IN THE NORTH CHINA PLAIN, BASED ON REMOTE-SENSING A PRIORI KNOWLEDGE
Agricultural Spatial Sampling Remote Sensing a Priori Knowledge Spatial Structure Characteristics RIP(s)/RIV(s) Sampling efficiency
2014/4/29
In this paper, the MODIS remote sensing data, featured with low-cost, high-timely and moderate/low spatial resolutions, in the North China Plain (NCP) as a study region were firstly used to carry out ...
滩涂土壤电磁感应仪与方差四叉树法采样布局研究（Application of Electromagnetic Induction (EM38) and Variance Quad-tree (VQT) Method on Spatial Sampling Scheme in Coastal Saline Region）
电磁感应仪 方差四叉树 滩涂
2010/12/28
将电磁感应仪EM38和方差四叉树法VQT相结合，以EM38测量的土壤表观电导率作为土壤盐分的辅助变量，以表观电导率的空间分布为先验信息，利用VQT法对苏北滩涂围垦地土壤盐分的优化采样布局进行了设计、验证与精度评价。结果表明，VQT法设计的采样方案经Kriging插值形成的空间分布图与原始图件极其相似，但两者的样点数目相差近1/2。相同的样本数目，VQT法获取的空间分布图与原始图件的相似度高于网格采...