摘要
针对地方坐标系存在着多样性和复杂性,将地方坐标系根据建立方法概括为三种类型,提出地方坐标向2000国家大地坐标系转换的两种技术路线,通过具体实例分析,表明该方法坐标转换精度较高,并具有实用性、通用性。同时给出根据重合点情况,如何选择转换模型,并通过检验点误差和转换残差全面来衡量坐标转换精度。
Local Coordinate System is classified into three types by its creating methods.Because of its variety and complexity,two methods to transform Local Coordinate System to CGCS 2000 are outlined in this article.Through case analysis,the coordinate by transformation method proves to be in high precision,and applicable and universal.Based on overlapping point condition,a suitable transformation model is chosen.We can use poor external inspection and conversion residuals as tools to estimate transformation precision.
出处
《测绘与空间地理信息》
2010年第6期193-196,共4页
Geomatics & Spatial Information Technology
