摘要
目前常用的坐标转换模型在应用范围、计算速度及有效性等方面都存在着一定的局限性.通过对迭代计算模型和直接计算模型的大地坐标转换计算结果进行比较,提出了一种基于牛顿迭代算法的新的大地坐标转换模型.经检验,新的大地坐标转换模型计算简便,高效快速,转换精度可靠,适用于任意点的大地坐标转换问题.此外,还提出了大地高程H的通用计算公式,解决了目前大地高程H计算公式的局限性和不惟一性.
The transformation from geocentric coordinates to geodetic coordinates is used more extensively in surveying engineering, but some well-known formulae of geodetic latitude and geodetic height are not accurate even error in some points in space, and it is also slower in calculation and low effectiveness etc. A new solution is found with Newton-method iteration in the reduced latitude, and an improved height formula is also given in the paper. This coordinates transformation model is proved effective in all points on the globe and space, and any required accuracy. Moreover it is simple and quick in calculation and compute processing.
出处
《河南理工大学学报(自然科学版)》
CAS
2006年第2期111-115,共5页
Journal of Henan Polytechnic University(Natural Science)
基金
河南省自然科学基金资助项目(0111070700)
河南省重点科技攻关项目(0323032700)资助
关键词
大地坐标
地心坐标
坐标转换
大地纬度
归化纬度
地心纬度
Geodetic coordinates
Geocentric coordinates
Coordinate transformation
Geodetic latitude
Reduced latitude
geocentric latitude