查询词典 data point

During 3D seismic data acquisition in Berri Block of Saudi Arabia,GPS navigation system was used while shooting,and monitoring shot-point drift on the interface of GPS navigation system,to initially control shot point error. Then,the method was applied to control seismic data acquisition quality,to analyze and examine shot-point drift and receiver-point drift.

在沙特Berri工区三维地震数据采集过程中，首先在放炮时采用GPS导航系统，在导航系统监控软件界面上监测炮点偏移情况，初步控制炮点误差；然后利用基于最小偏移距分选方法对地震数据采集质量进行监控，并对炮点和检波点偏移误差进行分析和检查。

An isolated point s statistic excluding method is proposed in this paper to eliminate crassitude error in clouding data, which include plenty of oddity data. The method based on the distance between two neighbour points can eliminate the data beyond normal distribution. A error limitation of angle and chordal highness method is used to filtrate clouding point.

针对大量含奇异点的数据点云，本文提出了剔除粗大误差的孤立点统计排异法，该方法根据对相邻点距离的统计，剔除在正态分布以外的点；对大量数据的精减，利用角度和弦高的最大允许偏差法进行点云精减。

The representative minority cultural relic-pottery relic of Buyi minority and the two wooden masks is taken as the research object. Firstly, Hiscanner laser scan detector was adapted for data collection, and then obtain point cloud data which could be recorded on disc for permanent saving was obtianed; Furthermore, the new popular reverse engineering software Geomagic for some disposals of point cloud data was adopted in data condensing, data mending, data filtering, feature line picking up to obtain NURBS surfaces; and then the error between the reconstructed CAD model and the point cloud data was evaluated to guarantee the precision of surface reconstruction to keep the relics keep its original appearance. In the end, the NURBS surfaces are imported to 3D software Solidworks and entities of CAD are generated by surface sewing, mold loft and ablating and other instructions.

选用有代表性的贵州少数民族文物―布依族酒壶、水壶以及木制傩戏面具作为研究对象，采用Hiscanner激光扫描测头对其进行数据采集，扫描得到的点云数据可刻录到光盘上作为文物数据永久保存；更进一步地，采用目前流行的逆向工程软件Geomagic studio对点云数据进行数据精简、数据滤波、数据修补、提取特征线等处理后得到NURBS曲面；为保证曲面模型重建的精度，在曲面重建模型后对其误差评价，通过控制误差的方式指导曲面模型重建，使重建的文物曲面模型能真实完整地反映原状；最后，在功能强大的三维造型软件Solidworks中导人重构的NURBS曲面进行曲面缝合、放样等，将其生成实体CAD模型，并对模型的局部特征进行适当的再设计以实现文物实体模型的优化。

The main research of the thesis is the implementation of batch data interchange function based on ETL. UDI has two main characteristics. First, by the separation of source systems and target systems, the platform provides data exchange among the systems to avoid point to point communication. Second, the data process of source systems is consolidated by platform based on the systems common requirements. The data extraction is implementated from the simple data exchange to the more complicated view of business logic.

平台的最大特点体现在，一是在源系统和目标系统之间实现了批量数据交换，避免多个系统之间批量数据交换时的点点沟通，在源系统和目标系统之间进行隔离；二是将源系统数据加工处理时的共性需求，集中于平台内部统一实现，这一共性需求的统一处理，从简单的数据接口转换深入到更复杂的业务逻辑展现，实现了真正意义上的数据处理功能。

Finally, from the view point of recording high-fidelity data page, we optimized the storage system by using beam shaper in signal beam, and redesigning geometry to increase the uniformity of reference beam. In the final demonstration experiment, we encode 10KB Flash to four data pages, each including 512×512 bits. The data pages are 1:2 pixels matched. These four data pages were stored in a single point in a photopolymer media of Aprilis Corporation by using angle multiplexing method, and successfully retrieved.

根据我们设计的串行二进制数字数据与数据页之间的编解码方法，将一段10KB大小的Flash视频编码为4幅512×512幅面，1：2匹配的数据页，并成功的在美国Aprilis公司光致聚合物材料中完成了这4幅数据页的单点角度复用存储，再现数据页经过偏移补偿算法和PMSF算法处理后的平均原始误码率为2.4×10-4，这样低的误码率完全满足后期软解码的需要，并使得解码后的数据可以满足用户误码率的要求。

The paper analyzes the integration of point data that has important function in the research of LUCC. Taking temperature data as an example, the paper analyzed the process of spatialization, and completed the pattern between integration of point data and land use and land cover change data.

对LUCC研究中起着重要作用的点状数据的集成进行分析，实现了点状数据空间化酌集成模式、并以气温数据为例分析了其空间化过程，为土地利用／土地覆被空间分析和建模提供支持。

In this paper, the case study- the spatialization of China's population at the county level in the country scale can, on one side, obtain the population density of all kinds of terrain features across China. On the other side, the population density data at the county level can be integrated with environment data and social-economic data to generate 1-km grid data sets of average population density, average capacity of natural resources and others derived from environment data. And these data could be useful to monitor China's resource management, population dynamics and so on. The example study has demonstrated a plausible method of wisely using discrete point data to carry out some practical studies.

本文通过全国县级行政单位人口数据的空间化过程，一方面可以重新得到各种类型区人口居住密度的预设值或经验值；另一方面，可以将空间化后的人口数据与其他自然资源、环境数据和社会经济等数据进行有效的融合，将能得到1km格网的人均自然资源占有量、人口密度以及其他经济、环境指标的派生数据信息，这对于我们国家的自然资源管理和宏观调控、人口的动态监测等，均具有重要的实际意义。

Discrete point data can be applied with other GIS data to address some specific questions in our researches. But how to spatialize the discrete point data has been a question itself.

5离散点数据的连续空间化问题一直是将某些社会经济离散点数据与其他地理空间数据相结合，应用于各项实际研究的瓶颈问题。

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Lots of data point out that it is the trend to use self and shunt excitation system on large and medium generator.

众多资料指出：在大、中型发电机组中采用自并励励磁系统已是发展趋势。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。