On the image processing of the aerial survey digitized graph;
浅谈航测数字化成图的图像处理
This article introduced the application of aerial survey digital analog technology in highway alignment designing software,CARD/1.
介绍了航测数模技术在公路路线设计软件——CARD/1软件中的应用。
By applying remote sensing technique of aerial survey,there were a large amountof practical experiences accomplished by the Professional Design Institute,such as selectingthe schemes of the railway lines,preliminary surveying,graph making,technical reformingthe existing railways,increasing the secondary railway lines,eliminating the track diseases,etc.
本文通过专业设计院在线路方案选择、初测、成图、既有线的技术改造、增建三线、病害整治等方面应用航测、遥感技术的大量实例，系统论述了航测遥感技术应用于铁路建设的前期工作和既有线改造的技术优势和深远意义，并对其中存在的一些问题提出了改进措施。
Surveying topographical map of a zone on the scale of 1:2000 with aerophotogrammetry;
用航测方法测绘1∶2000带状地形图
Large-scale topographic mapping of construction sites and cross-sections by the aerophotogrammetry is the key technique in railway survey and design which has been long attended to and researched with great emphasis.
利用航测技术测绘大比例尺工点图和横断面图,是铁路勘测设计部门重点研究的关键技术问题之一,其主要难点在于采用小比例尺航摄,精度达不到要求;采用大比例尺航摄,航摄费用过高。
Aiming at the technical design of 1∶500 and 1∶1 000 scale aerophotogrammetry DLG in Nanjing and Suzhou,this paper studied the working difficulties and put forward the better design schema.
针对南京、苏州1:500、1:1000比例尺的航测数字线划图技术设计,研究作业的难点,提出更好的设计方案。
For airborne survey , it is difficult to identify the information of the in-situ leachable sandstone type uranium deposits which are deep buried under ground by the traditional data processing and the traditional abnormal analysis method.
论文针对勘查砂岩型铀矿系统分析了航测遥感技术，提出了综合利用物探遥感信息预测砂岩型铀矿的工作思路和航放数据处理的新方法，并制作了模拟反射率图，取得了如下成果： (1)建立了综合利用物探遥感信息寻找砂岩型铀矿的预测评价模式；充分发挥了多学科、多方法的优势，合理提取蕴含于各类地质资料中的有关成矿、控矿地质信息。
Photogrammetric DEM and cross-section based on the DEM are the bridges linking the photogrammetry and design, and also are the tie of integration of Survey and Design, combining the Photogrammetry, DEM and route CAD into an organic system.
数字高程模型及基于数字高程模型提取横断面的技术是连接航测和设计之间的桥梁，是勘测设计一体化的纽带，它将航测、数字高程模型和线路CAD设计紧密结合成为一个有机的系统。
In order to put the geography metadata into the map,at present several methods of data acquisition used commonly are: aerial photogrammetry,high resolution satellite remote sensing,ground mapping technology,GPS surveying technology,laser scanning,close-range photogrammetry and so on.
比较这几种方法的优缺点,不难看出遥感技术是精度最高的,但是它需要的技术含量也高,因此实践起来比较困难,然而正在向遥感方向发展的航测技术已经具备了一定的精度,而且它的实用度强,目前已得到大多数用户的认可。
After comparing calculating values with monitoring concentrations on the ground and high altitude plane monitoring values by China Environment Science Institute in January,1994,we can find that the predicting result by the multibox model brings smaller error than that by single-box model,Therefore,we can conclude that th.
本文采用三维多箱模型对石家庄市区特征污染物ＳＯ２的浓度进行了计算，把计算结果与地面监测值和１９９４年１月份中国环境科学研究院的高空航测值进行比较分析后发现，用多箱模型预测大气环境比单箱模型产生的误差要小。