空间抽样

空间抽样承认这种联系，并且量化这种相关性，在抽样决策中利用这种相关性，降低抽样成本。

Spatial sampling recognize the spatial correlation and to quantify this correlation .

基于空间抽样的农作物面积遥感测量

Remote Sensing Measure of Crop Area Based on Spatial Sampling

冬小麦种植面积空间抽样效率影响因子分析

Analysis of influence factors about space sampling efficiency of winter wheat planting area

微位移法消减空间抽样折叠混淆效应的相位理论分析

Theoretical Analysis of Spatial Sampling Aliasing Reduction through Micro-shift

红外焦平面空间抽样特性分析与测试

Infrared FPA Spatial Sampling Characteristics Analysis and Measurement

农情遥感监测中空间抽样技术研究现状与发展趋势

Present status and development trend for space sampling technology study in remote-sensing and supervising of agriculture information

该算法有效地实现了红外焦平面热图像的电子变倍，提高了采样带宽，降低了红外焦平面空间抽样成像引起的频谱折叠混淆效应。

This arithmetic effectively realizes IRFPA image electronic magnification , increases sampling bandwidth , and reduces IRFPA spatial sampling aliasing effect to some extend .

浙江省农村水厂管网末梢水水质调查监测情况分析农情遥感监测中空间抽样技术研究现状与发展趋势

Surveillance of water quality of rural waterworks in Zhejiang Province PRESENT STATUS AND DEVELOPMENT TREND FOR SPACE SAMPLING TECHNOLOGY STUDY IN REMOTE-SENSING AND SUPERVISING OF AGRICULTURE INFORMATION

为了减小定位误差和提高算法的适应性，利用三维空间抽样和范围约束的方法，并结合对成功样本点的加权筛选，获得节点的三维估计坐标以实现抽样定位。

Combined with weighted filtration to successful sample points , it uses the method of sampling in three-dimensional space and range constraint to acquire three-dimensional coordinates of nodes .

对比分析表明：应用上述两种方法，（1）格点化带来的空间抽样误差较小；

Comparison analysis shows no matter by which method the grid dataset is constructed : ( 1 ) the spatial sampling errors of each grid box / point are relatively small , which means the interpolation is relatively accurate for a local region ;

有决定集和平移不变子空间中抽样定理

Determining Set and Sampling Theorem in the Shift Invariant Subspace

空间积分抽样相位理论分析为消减欠采样产生的折叠混淆效应提供了理论依据。

Phase theory analysis of spatial integral sampling provide theoretical basis for under sampling aliasing reduction .

该算法对点模式的旋转、移和比例变化是不变的。有决定集和平移不变子空间中抽样定理

Experimental result shows the effectiveness of the algorithms . Determining Set and Sampling Theorem in the Shift Invariant Subspace

目的探讨时间/空间定位抽样方法在性病门诊抽样调查中的应用。

Objective To explore the application of time / space sampling designs in survey of outpatients visiting sexually transmitted diseases clinic .

由于完全避免了对无故障状态子空间的抽样，并对各阶子空间进行独立分析，该算法在计算效率上具有很大的优势，适用于高可靠性系统。

Because sampling the CFSS is avoided and DCOSS are considered separately , the SIS is efficient and can be applied to reliable power system .

本文建立了空间积分抽样的相位理论模型，分析了该模型在空间积分抽样折叠混淆效应的消减，以及对中心布里渊区中真假频谱积分比的测试等方面的应用。

In this paper , spatial integral sampling phase theory model is founded , and its utilization in aliasing reduction and central Brillouin zone real-false spectrum integral ratio measurement is analyzed .

在直接模拟法中由于粒子空间位置抽样产生较大的统计涨落，当光学厚度增大，散射的各向异性增强及强吸收时其结果的偏差增大。

As a result of considerable statistical fluctuation of scattering point samples in direct analogue method , the deviation of calculation would be larger as the optical thickness increases or anisotropic scattering or absorption becomes stronger .

对于互相关的不同分布随机变量，则只能根据其联合概率分布求出其边缘分布和条件分布，化为独立的变量分布，然后在独立空间中抽样，但大多数情况下无法知其联合概率分布。

For a set of correlated stochastic random variables with different distributions , the sampling can only be taken from an independent variable space , which is based upon marginal and conditional probability densities of the random variables .

有鉴于此，本文提出了阵列成像空间积分抽样的相位理论模型，为焦平面技术的研究、测试和消减因欠抽样而产生的频谱折叠混淆效应提供了理论依据；

For this reason , an integrated novel theoretical analysis named Phase Theory Model of Spatial Sampling Array Imaging is put forward , and a theory foundation is provided for study and test of staring infrared Focal Plane Arrays and the reduction of the aliasing effect .

茶梢蛾幼虫空间分布及其抽样技术

Spatial Distribution Patterns of Tea Shoot Borer and the Sampling Method

柑桔矢尖蚧空间格局及抽样技术研究

Spatial pattern of Unaspis Yanonensis citri and its sampling techniques

水稻粒黑粉病空间分布及抽样技术研究

The spatial distribution and sampling technique for the kernel smut of rice

冬枣黑斑病空间格局及抽样技术研究

Pattern of spatial distribution and sampling technique of winter jujube black spot

褐边绿刺蛾越冬茧的空间格局与抽样技术研究

Study on spatial distribution and sampling technique of hibernating cocoon of Parasa consocia

关于小波空间中的抽样定理与小波系数计算

On the sampling theory for wavelet subspaces and the calculation of wavelet coefficents

烟草蚜虫的空间格局与抽样技术

Spacial Pattern and Sampling Technique of Myzus persicae ( Sulzer ) in Tobacco Field

抚宁吉松叶蜂幼虫种群空间格局及抽样技术研究

Studies on the Spatial Distridution and Sampling Technique for the Larval Population of Gilpinia

杨树上云斑天牛种群的空间格局及抽样技术

Spatial distribution pattern and sampling technique for Batocera horsfieldi ( Coleoptera : Cerambycidae ) in poplar

思茅松毛虫幼虫空间格局与抽样技术的初步研究

Preliminary study on the spatial distribution pattern and sampling technique of larvae of Dendrolimus kikuchii Matsumura

褐飞虱稳定增长初期种群空间格局及抽样技术的研究

Studies on the Spatial Patterns and Sampling Techniques of the Population of Brown Planthopper in the Initial Stable-increasing Stage