GPS高程拟合转换正常高的研究Research of fitting and transforming GPS height into normal height
于小平,杨国东,王凤艳,刘财,张洪波,孟令顺,许惠平,胡婷
摘要(Abstract)：
通过对GPS测高与水准测量理论及其异同分析的基础上,阐述了确定似大地水准面的原理与方法,分析了用数学模型法,用少量GPS与水准重合点将GPS大地高直接转换为具有cm量级正常高的实现方法。实验结合黑龙江省虎林地区的地形特点,提出了用线性内插法、平面模型法和二次曲面模型法等来转GPS高程,证明在黑龙江省虎林地区可以通过少量且分布合理的水准点来直接求出该地区具有cm量级的正常高,且精度可以达到四等水准测量的精度要求,满足一般工程的需要。
关键词(KeyWords)： GPS;似大地水准面;正常高;精化模型;高程异常等值线;垂线偏差
基金项目(Foundation): 国家发改委项目(大庆探区外围中、新生代断隙盆地群演化与油气远景)(XQ-2007-07-05)
作者(Author): 于小平,杨国东,王凤艳,刘财,张洪波,孟令顺,许惠平,胡婷
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