基于多期区域似大地水准面的自动化正常高转换方法及应用研究  

Automatic normal height conversion method based on multi period regional quasi geoid

作　　者：武瑞宏[1] 靳鑫洋 张占忠[1] 刘晓云 郭鑫伟 齐文 WU Ruihong;JIN Xinyang;ZHANG Zhanzhong;LIU Xiaoyun;GUO Xinwei;QI Wen(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi′an,Shaanxi 710043,China;Geodetic Data Processing Center of the Ministry of Natural Resources,Xi′an,Shaanxi 710054,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043 [2]自然资源部大地测量数据处理中心,陕西西安710054

出　　处：《测绘技术装备》2023年第1期1-4,共4页Geomatics Technology and Equipment

基　　金：国家自然科学基金项目(41774004、41904040);2021年度中铁第一勘察设计院集团有限公司重点专项科研开发项目(2021KY73ZD(ZDZX)-01)。

摘　　要：为了提高正常高转换的效率,减少人为因素对转换结果的影响,降低质量风险,本文提出一种基于多期区域似大地水准面的自动化正常高转换方法。首先,将多期区域似大地水准面模型进行拼接,实现水准面模型自动化选取;其次,提出一种文本格式泛化识别思路,实现多种源文件的数据格式统一。实际应用表明,该方法功能全面,可实现自动化监控式作业,既能大幅提高工作效率,又能确保质量,可在生产中推广应用。In order to improve the efficiency of normal height conversion,reduce the influence of human factors on the conversion results and reduce the quality risk,a new method of automatic normal height conversion based on multi period regional quasi geoid is proposed in this paper.Firstly,the multi period regional quasi geoid is merged to automatically select the quasi geoid model.Then,a new method of text format generalization recognition is proposed to unify the format of multiple source data.The application shows that this method can achieve automatic monitoring operation,which can not only greatly improve the working efficiency,but also ensure the quality,and can be widely used in the production.

关 键 词：正常高转换 似大地水准面 水准面拼接 泛化识别 

分 类 号：P223[天文地球—大地测量学与测量工程]