摘要
目前的数字线划图更新技术计算变化区域位置定位准确性较低,难以准确地寻找变化区域位置信息。针对上述问题,对河北省1∶10 000数据线划图更新技术进行研究,确保更新技术要满足平面精准度原则、几何精准度原则、现势性原则、逻辑性原则、完整性原则,通过收集数据,对数据进行分析,确定出总体技术路线,在确定出变化区域位置信息、变化区域位置变化率、变化区域位置更新方式之后确立数字划线图更新方式,通过变化区域位置航天影像测量、卫星影像测量、融合更新实现DDL数据更新。
The current data line graph update technology has low accuracy when calculating the change rate of the change position of the change region,and it is difficult to accurately find the position information of the change region.In response to the above problems,researching on the 1∶10 000 data line mapping update technology in Hebei Province to ensure that the update technology should meet the principles of plane accuracy,geometric accuracy,current principle,logic principle,and integrity.By collecting data and analyzing the data,we determine the overall technical route,and establish the digital scribing map update mode,after determining the change location information,the change region location change rate,and the change region location update mode,through changing the regional location aerospace image measurement,satellite image measurement and fusion updates to implement DDL data updates.
作者
赵建文
ZHAO Jianwen(Hebei Second Institute of Surveying and Mapping,Shijiazhuang Hebei 050031,China)
出处
《北京测绘》
2020年第7期991-994,共4页
Beijing Surveying and Mapping
