搜索结果: 1-15 共查到“测绘科学技术 DGPS”相关记录16条 . 查询时间(0.093 秒)
Test Results of RTK and Real-Time DGPS Corrected Observations Based on NTRIP Protocol
GPS Real-Time DGPS RTK NTRIP Protocol Accuracy
2015/12/3
For many years, real-time DGPS and RTK correction data distribution have been providing GPS users a means to accomplish their tasks with high accuracy positioning in real-time. Dial-up systems over ph...
Applying Integrated DGPS/IMU Systems to Stereo Plotting
Photogrammetry Remote Sensing Mapping Application Integration
2015/12/2
During recent years direct sensor orientation with GPS and IMU has gained popularity. The system can directly get exterior orientation elements without using ground control points. To achieve the full...
GENERATION OF CARTOGRAPHIC QUALITY BASE MAPS USING CARTOSAT-1 STEREO IMAGERY IN CONJUNCTION WITH DGPS MEASUREMENTS
Cartographic Quality Ortho Image
2015/8/28
High resolution CARTOSAT-1 satellite with its along track stereo capability has opened a number of applications. With fore and aft
images looking at +26° and -5° respectively, the satellite is lookin...
Imu/dgps-supported automatic image measuring
IMU/DGPS point feature extraction initial parallax
2015/8/20
Automatic image measuring is to identify and to measure conjugate points in two or more overlapping photographs automatically. In
digital photogrammetry, this process is done by image matching. A str...
APPLICATION OF MARINE GEOGRAPHIC INFORMATION SYSTEM USING ANALYSIS OF CONTROL POINTS IN POST PROCESSING DGPS SURVEYING
Post Processing DGPS Surveying Chi-Square Verification\
2015/7/30
The GPS precise surveying which is prevailing in Korea now grasps the problem that the result of the GPS observed value is used
without the analysis of the relationship between the geometric strengt...
FIRST EXPERIENCE OF IMU/DGPS–SUPPORTED PHOTOGRAMMETRY IN CHINA
Differential Global Position System (DGPS)
2015/6/1
People’s Republic of China is one of the most rapidly developing countries in the world today. There is a great demand on highly actual
and accurate spatial information of the whole country, especia...
REAL TIME MAPPING WITH DGPS-ENABLED NAVIGATION EQUIPMENT
Surveying Internet Cartography Updating GPS Real-time User
2015/6/1
Today, differential GPS techniques allow common GPS receivers to achieve the precision levels required for mapping purposes. The development of systems for mobile Internet access (mainly GPRS) provide...
THE USE OF DGPS-RTK MEASUREMENTS THROUGH GSM NETWORK FOR GIS ENVIRONMENTS
GPS GSM DGPS RTK geodetic survey navigation direct georeferentiation
2015/6/1
The necessity to get positioning in the most precise way and in the briefest time assumes great importance either in the navigational field or in the geodetic surveys. The GPS system is really the mos...
REQUEST ANALYSIS OF DGPS/IMU ON THE AIR-BORNE INSAR SYSTEM
airborne SAR IMU/DGPS attitude compensation motivation compensation DEM generation
2014/4/25
The DGPS/IMU can measure position and velocity extremely high, and it is widely used in air-borne InSAR system. The passage based on the DGPS/IMU's action in the airborne InSAR system, makes sure the ...
IMU/DGPS辅助航空摄影新技术的应用
IMU DGPS 航空摄影测量
2009/11/24
利用IMU/DGPS组合导航技术，可以在航空摄影的同时直接获取像片的外方位元素。试验表明，只要对IMU/DGPS与航摄仪的集成系统误差和漂移误差进行检校和改正，直接获取的像片外方位元素可以用于正射影像的制作和中小比例尺测图。本文首先讨论了IMU/DGPS组合导航技术和IMU/DGPS辅助航空摄影系统的工作原理； 然后，结合甘肃酒泉试验数据，重点分析讨论了IMU/DGPS和航摄仪集成系统的误差及其检...
推导了ADS40航带间外方位元素归一化处理的数学公式，设计了一种描述IMU/DGPS系统误差的数学模型，采用改进的定向片内插模型实现了ADS40影像的区域网平差。试验结果表明，仅需一个地面控制点，IMU/DGPS数据的定位精度就可显著提高，在四角布设地面控制点的情况下，IMU/DGPS数据与ADS40影像的联合平差可得到优于1.5个像素的3维定位精度；构架航线对平差结果的改善作用有限，在作业中采用...
DGPS在浮标流向测量中的应用
DGPS 浮标流向测量
2009/8/10
利用GPS实时差分测量系统(DGPS))进行河道浮标流向测量,取代常规经纬仪交会法进行浮标流向测量,解决了用常规方法测量无法克服的问题,提高了作业效率.
IMU／DGPS辅助航空摄影测量地面测量的实施
IMU／DGPSGPS 辅助空三 基准站 检较场 检查区
2009/8/10
本文以石保沧摄区为例，介绍IMU／DGPS辅助航空摄影测量地面测量的实施方法，描述了每个工序中应注意的问题及最终成果整理时应注意的问题。
基于DGPS的接触线弛度测量方法及数据分析
差分 GPS 弛度
2009/8/6
提出一种基于DGPS技术的电气化铁路接触网线弛度测量方法,实现了实时直接测量,而不需要通过张力、温度和环境等条件间接计算得到.采用数字信号处理方法对测量的原始数据进行处理,建立神经网络模型进行参数估计,降低了DGPS的测量误差.
水下DGPS高精度定位系统
水下DGPS 高精度定位系统
2009/4/21
国家“十五”863计划，2003年12月通过科技部一期任务验收。中国测绘科学研究院和中国船舶重工集团总公司第七一五研究所在短短的两年时间内，研制成功我国首套水下GPS高精度定位导航系统，在2003年12月浙江省千岛湖进行的试验表明，对于水深45米左右的水域，系统的水下定位精度为5厘米，测深精度为30厘米，水下授时精度为0.2毫秒，且测量误差不随时间累积。这是继美国和法国之后，我国自主研制开发的精...