天宝电子水准仪沉降观测数据平差程序

介绍了用Excel处理电子水准仪沉降观测数据的有关方法和技巧,其特点是:结合咸阳市勘察测绘院电子水准仪的实际应用情况,有针对性地编写了相关程序,弥补了电子水准仪数据处理方面的不足,提高了生产效率和产品质量.     

基于VBA的电子水准仪数据下载及格式输出方法

由于国内外电子水准仪品牌繁多、技术标准不统一,并且出现仪器导出的数据量大、效率低、有冗余等问题。本文介绍了基于VBA中的MSComm控件完成数字水准仪的数据下载,通过对EXCEL中单元格性质的设定从而形成符合国家规范手簿,并利用单元格赋值方法自动填写手簿及核查数据可靠性。通过实践证明了本文方法的可行性,促进了水准仪数据处理工作的标准化及自动化。     

浅谈精密水准测量仪器与施测

本介绍了一、二等水准测量以及特等精密水准仪测量中精密电子水准仪的精度分析和实现，提出了数据处理方法。     

数字水准仪电子读数系统误差的检测方法

介绍DAL1528(R)数字水准仪电子读数系统的检测方法,利用望远镜在室内模拟100 m距离,利用高精度电控升降台作为长度标准,利用EXCEL进行数据处理,实现批量生产过程中数字水准仪电子读数系统的检测。     

浅析基于Lecai DNA003水准仪在等级水准测量中的应用

介绍Lecai DNA003型电子水准仪在西煤东运煤炭基地三等水准测量项目中的实际应用情况,结合实际作业经验对仪器的不足之处讨论了解决办法,以提高工作效益。     

电子数字水准仪及其在沉降观测中的应用

本文以日本拓普康公司生产的数字水准仪ＤＬ－１０１ｃ为例,简要介绍了电子数字水准仪的性能,特点,以及它的应用前景。文章还介绍了电子数字水准仪在沉降观测中的应用,利用ＰＣＭＣＩＡ卡,可实现电子数字水准仪与笔记本电脑之间的数据通讯,从而实现沉降观测的内外业一体化。     

电子水准仪的精度分析与研究

探讨了评价电子水准仪的精度指标,并利用TOPCON DL-101C电子水准仪和Leica NA3003电子水准仪对闭合环进行观测,对其精度进行了分析,结果表明,这两种仪器都满足一等水准测量的限差要求。     

编码与测绘仪器

编码作为现代信息学的重要基础 ,在测绘仪器领域有着越来越广泛的应用。本文对其在电子水准仪、电子经纬仪和GPS上的应用进行了较为深入的探讨。     

浅谈新技术、新仪器在城市测绘中的应用

伴随着测绘科学技术的不断进步发展,城市测绘涌现出很多新技术、新仪器。GPS网络RTK技术、电子水准仪、三维全景采集车、数字城市、探地雷达、三维地下管线信息系统正是这些科技发展的前沿。介绍了这几种常见新技术、新仪器在城市测绘中的应用。     

编码与测绘仪器

编码作为现代信息学的重要基础，在测绘仪器领域有着越来越广泛的应用。本文对其在电子水准仪、电子经纬仪和GPS上的应用进行了较为深入的探讨。     

阿克苏河-塔里木河水系水质污染遥感监测与评价

 采用Landsat TM数据分析了阿克苏河—塔里木河断面水质污染状况,通过波段的DN值和常规监测数据建立能反映水质状况的 污染物监测模型。结果发现,将2000年常规监测数据代入模型后,与遥感数据的结果基本吻合| 重建阿克苏河—塔里木河的连续水体 污染变化曲线,得出污染物浓度随着远离上游而增加。     

Gravity Changes Before Large Earthquakes in China: 1998-2005

Although it is well known that coseismic gravity changes take place during an earthquake, previous research has not yielded convincing evidence demonstrating that significant gravity changes occur before large earthquakes. Furthermore, even if we suspect that gravity changes occur before large earthquakes, we have yet to demonstrate how to consistently observe these changes for useful earthquake forecast that would bring benefits to society. We analyzed ground gravity survey data obtained in 1998, 2000, 200...     

Landslide risk analysis between Giri and Tons Rivers in Himachal Himalaya (India)

The area around Sataun in the Sirmur district of Himachal Pradesh, India (falling between the rivers Giri and Tons; both tributaries of the Yamuna River) was studied for landslide vulnerability on behalf of the inhabitants. The study was made using extensive remote sensing data (satellite and airborne). It is well supported by field evidence, demographic and infrastructural details and aided by Geographic Information System (GIS) based techniques. Field observations testify that slope, aspect, geology, tectonic planes, drainage, and land use all influence landslides in the region. These parameters were taken into consideration using the statistical approach of landslide hazard zonation. Using the census data of 1991, vulnerability of the populace to the landslide hazard was accessed. As most of the infrastructure in the region is concentrated around population centres, population data alone was used for vulnerability studies.     

GNSS系统及其技术的发展研究

阐述了国际上卫星导航系统的总体发展,对美、俄、欧、中的四大全球系统,以及相关的区域系统和增强系统进行了简单的介绍,研究分析了GNSS系统及其技术的发展趋势,同时分析了我国Compass全球系统面临的机遇和挑战,并提出了我国未来工作的建议.     

“4D”技术及其应用

介绍“４Ｄ”（即数字地面模型、数字正射影像、数字栅格地图和数字线划地图）系列产品的生产流程、关键技术、及其在耕地保护、防灾减灾救灾和城市规划等方面的应用方法。     

Virtual Australia: its key elements – know,think, communicate

Abstract

Virtual Australia is not a well-defined or agreed concept. This discussion paper conceptualises Virtual Australia as a ‘virtual [digital] model containing and representing all non-trivial objects and their contextual environment – from blue sky to bedrock – in real world Australia’. It describes a scenario for Virtual Australia, one or two decades from now, in which the locations and conditions of non-trivial objects and their environment are updated automatically through a combination of remote sensing and wireless communication technologies in support of a ‘Supranet’. It then examines the concept of the ‘Supranet’ – a pervasive information network based largely on wireless technology linking the physical world to a virtual model in real time – and develops and discusses three principal characteristics of the Supranet: the ability to have or collect specific information (know); the ability to process information (think); and the ability to communicate that information. If, in the near future, any or all non-trivial devices are to some extent able to know, think and communicate, the potential for object autonomy will be realised.     

Toward seamless indoor-outdoor applications: Developing stakeholder-oriented location-based services

Location-Based Services (LBS),an emerging new business based on smartphone and mobile networks,are becoming more and more popular.Most of these LBSs,however,only offer non-seamless indoor/outdoor applications and simple applications without giving stakeholders the chance to play an active role.Our specific aim is to solve these issues.This paper presents concepts to solve these issues by expanding the Open Location Services Interface Standard (OpenLS) to allow seamless indoor/outdoor positioning and to extend the content of the services to include information recommended by stakeholders.     

GIS空间数据的采集误差及其分析

本文详细阐述了GIS数据采集过程中的误差来源，重点分析了通过地图、遥感和摄影测量等方式采集数据所产生的误差及其特性，分析了其对GIS数据的影响与消减方法。     

基于Skyline的企业总图3维信息系统

3维技术以其直观、眩目的表现力深受人们喜爱.利用3S技术和Skyline开发平台,可以构建大型企业3维地理信息系统,以满足企业设计部门和资产管理部门对基础地理信息的需求.兼容原有2维系统的总图3维信息系统,将为企业的日常管理、设计施工、分析统计、规划决策等提供更加可靠、直观、多层次、多功能的综合服务信息.