机构

• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [1]
• 地球环境研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [2]
• SCI/SSCI论文 [1]
• 会议论文 [1]

发表日期

• 2021 [1]
• 2012 [1]
• 2005 [2]

学科主题

• Geoscience... [1]

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Watershed spatial heterogeneity of soil saturated hydraulic conductivity as affected by landscape unit in the critical zone 期刊论文  OAI收割 CATENA, 2021, 卷号: 203, 页码: 13 作者:  Liu, Shaozhen;  Wang, Yunqiang;  An, Zhisheng;  Sun, Hui;  Zhang, Pingping   |  收藏  |  浏览/下载：69/0  |  提交时间：2021/12/06 Intensive sampling  Spatial variation  Topography control  Structural equation model  The Loess Plateau of China   Comparison and simulation of subpixel imaging modes for linear CCD (EI CONFERENCE) 会议论文  OAI收割 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China 作者:  Li Y.;  He B.;  Li Y.;  Li Y.;  Li Y. 收藏  |  浏览/下载：38/0  |  提交时间：2013/03/25 Subpixel technique of linear CCD is effective to enhance the spatial resolution without increasing the focal length of optics and reducing the pixel size. To compare image quality of two main subpixel imaging modes  quincunx sampling and four-point sampling  a method to quantitatively evaluate image quality of subpixel based on MTF was proposed. The MTF of quincunx and four-point sampling modes were derived. Analytical results shows that theoretical limiting resolution of quincunx sampling and four-point sampling is improved to 1.4 and 1.86 times respectively  and MTF values at Nyquist frequency of two modes are increased by 0.1106 and 0.1679  respectively. MTFA in (0  0.5) of two subpixel imaging modes were calculated and results illustrates that four-point sampling offers much more improvement with image quality than quincunx sampling  at the cost of double amount of data. A model for simulating subpixel imaging using Matlab was established  and simulation results of spoke target verify the theoretical analysis. (2012) Trans Tech Publications  Switzerland.   Optimal decision-making model of spatial sampling for survey of China's land with remotely sensed data 期刊论文  OAI收割 SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2005, 卷号: 48, 期号: 6, 页码: 752-764 作者:  Li, LF;  Liu, JY 收藏  |  浏览/下载：307/65  |  提交时间：2011/06/10 survey of countrywide land with RS data  spatial sampling  optimal decision-making  model of spatial sampling   Optimal decision-making model of spatial sampling for survey of China's land with remotely sensed data SCI/SSCI论文  OAI收割 2005 Li L. F.; Wang J. F.; Liu J. Y. 收藏  |  浏览/下载：22/0  |  提交时间：2012/06/08 survey of countrywide land with RS data  spatial sampling  optimal  decision-making  model of spatial sampling