GPS监测网数据处理方案研究   总被引：22，自引：1，他引：21  

李延兴  胡新康  赵承坤 《测绘学报》1999,28(1):62-66

处理大尺度ＧＰＳ监测网多期复测成果的时期,数据处理方案是一个重要问题。作者在处理首都圈ＧＰＳ地形变监测网数据的过程中,经过长期探索和大量试算,提出了制定数据处理方案的基本原则：要采用一个自洽的地球参考框架和常数系统;要采用精度最高的同一种粗密星历和相应的地球自转参数;要采用最先进的同一种数据处理软件以及采用同一的参考基准和约束条件。由于地壳处于运动之中,大尺度ＧＰＳ监测网的参考基准应是动态基准。研  相似文献   

可扩展的并行地理图像处理系统     

方金云  何建邦  池天河  胡伟武  史岗  张福新 《地球信息科学学报》2000,2(4):62-66

可扩展的并行地理图像处理系统 (Par GIP)是基于多操作系统平台的机群并行图像处理系统 ,它采取Client- Server结构 ,采用插件技术和算法化的处理操作 ,具有良好的发展前景.  相似文献   

The appraisal of surface orbital vibrators with buried geophone array for permanent reservoir monitoring     

Sinem Yavuz  Roman Pevzner  Sofya Popik  Konstantin Tertyshnikov  Todd Wood  Michelle C. Robertson  Julia Correa  Barry Freifeld 《Geophysical Prospecting》2022,70(1):108-120

Time-lapse seismic is one of the main methods for monitoring changes in reservoir conditions caused by production or injection of fluids. One approach to time-lapse seismic is through permanent reservoir monitoring, whereby seismic sources and/or receivers are permanently deployed. Permanent reservoir monitoring can offer a more cost-effective and environmentally friendly solution than traditional campaign-based surveys that rely on temporarily deployed equipment while facilitating more frequent measurements. At the CO2CRC Otway Project, surface orbital vibrators were coupled to a buried geophone array to form a permanent reservoir monitoring system. These are fixed position seismic sources that provide both P and S waves using induction motor-driven eccentric masses. After an initial injection of CO₂ in February 2016, five months of continuous seismic data were acquired, and reflection imaging was used to assess the system performance. Analysis of the data showed the effects of weather variations on the near-surface conditions and the sweep signatures of surface orbital vibrators. Data processing flows of the continuous data was adapted from Vibroseis four-dimensional data processing flows. Ground roll proved a significant challenge to data processing. In addition, variations in the surface wave pattern were linked to major rainfall events. For the appraisal of surface orbital vibrators in imaging, a Vibroseis four-dimensional monitor survey data with similar geometry was also processed. Surface orbital vibrators are observed to be reliable sources with a potential to provide a repeatable signal, especially if the ground roll should fall outside the target window of interest. To guide future permanent reservoir monitoring applications, a repeatability analysis was performed for the various key data processing steps.  相似文献   

“数字图像处理技巧”通识课程的建设与改革     

贾永红  崔卫红  张熠 《测绘软科学研究》2011,(6):42-44

数字图像处理技巧是继2004年＂数字图像处理＂课程获得国家精品课程以来,遥感信息工程学院面向全校开设的首批通识教育选修课之一。课程组对该课程教学内容、教材、教学方法与手段、网络资源建设和师资队伍等方面进行建设与改革,其成果在教学实践中得到推广应用,取得了优良教学效果。  相似文献   

基于52North WPS的Web Processing Service开发方法研究   总被引：2，自引：1，他引：1  

徐卓揆  申小平 《测绘科学》2011,36(1):140-142

地理信息系统共享与互操作、网格计算的发展在数据获取、发布及制图服务方面取得了较大进展,而针对在线空间分析的网络分析服务(Web Processing Service,WPS)仍相对滞后,国内对于此方向研究较少.OGC于2007年发布WIPS1.0.0标准,该标准能促使网络GIS共享与互操作的极大发展,本文以WPS为重点...  相似文献   

南海南部深部结构的复杂构造地震成像   总被引：2，自引：1，他引：1       下载免费PDF全文

孙福利  王真理  郝天珧  李欣 《地球物理学报》2011,54(12):3210-3216

南海南部海底崎岖、地下构造复杂、二维地震资料中多次波非常发育,在地震数据处理中很难获得令人满意的成像效果,为此本文采用了预测反褶积后F-K域滤波及叠前时间偏移后Radon变换去除多次波的组合方案,有效地衰减了多次波,突出了有效信号能量;采用速度分析点加密法获取了更为准确的速度,实现了陡倾角构造与海山的准确成像;采用百分...  相似文献   

电解锌渣场环境工程技术问题与实例分析     

龚宪伟  秦勇光  陈孟利  杨国刚 《云南地质》2011,30(4):449-453

铅锌矿冶电解锌浸出渣含有害成份,也含可再生利用成份。堆存处置方法与一般尾矿不相同。本文结合兰坪铅锌矿工程实例,探讨了电解锌浸出渣堆存技术问题。  相似文献   

昆明南市区建筑工地软土工程地质问题     

LI Qin  黄成 《云南地质》2008,27(1):86-90

昆明南市区软土分布普遍。对广福路高速公路、彝族明珠城和杨家地小区的工程地质条件调研中,分析钻孔及静力触探资料,针对不同软土地基,提出相应的处理方案。  相似文献   

AERYN: A simple standalone application for visualizing and enhancing elemental maps     

《Applied Geochemistry》2016

Interpretation of high spatial resolution elemental mineral maps can be hindered by high frequency fluctuations, as well as by strong naturally-occurring or analytically-induced variations. We have developed a new standalone program named AERYN (Aspect Enhancement by Removing Yielded Noise) to produce more reliable element distribution maps from previously reduced geochemical data. The program is Matlab-based, designed with a graphic user interface and is capable of rapidly generating elemental maps from data acquired by a range of analytical techniques. A visual interface aids selection of appropriate outlier rejection and drift-correction parameters, thereby facilitating recognition of subtle elemental fluctuations which may otherwise be obscured. Examples of use are provided for quantitative trace element maps acquired using both laser ablation (LA-) ICP-MS and electron probe microanalysis (EPMA) of the cold-water coral Lophelia pertusa. We demonstrate how AERYN allows recognition of high frequency elemental fluctuations, including those which occur perpendicular to the maximum concentration gradient. Such data treatment compliments commonly used processing methods to provide greater flexibility and control in producing elemental maps from micro-analytical techniques.  相似文献   

模拟地震环境土钉墙基坑支护设计研究     

李瑞琪  罗建鸿  张国林 《云南地质》2010,29(3):338-340,337

根据土体边坡滑动面破坏模式,拟静力法,在稳定性模型的假定条件下,建立地震作用下土钉支护边坡稳定性模型,并对云南映象中水处理厂的基坑土钉墙支护进行了计算,得到满意结果。  相似文献