物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
6期
1290-1292
,共3页
张宝松%郑加柱%滕龙%邸兵叶%朱红兵%张俊
張寶鬆%鄭加柱%滕龍%邸兵葉%硃紅兵%張俊
장보송%정가주%등룡%저병협%주홍병%장준
似大地水准面%坐标转换%二次精化%GPS
似大地水準麵%坐標轉換%二次精化%GPS
사대지수준면%좌표전환%이차정화%GPS
refined quasi-geoid%transformation of coordinates%re-refinement gravity survey%GPS
为了满足区域重力调查高精度测地工作的要求,实现不同坐标系之间的转换,通过区域似大地水准面的二次精化方法及开发的软件,将GPS大地高转换到正常高。采用实测26个水准点外检核精度,全区软件转换精度为±5.57 cm,完全满足重力测量中高程精度要求。
為瞭滿足區域重力調查高精度測地工作的要求,實現不同坐標繫之間的轉換,通過區域似大地水準麵的二次精化方法及開髮的軟件,將GPS大地高轉換到正常高。採用實測26箇水準點外檢覈精度,全區軟件轉換精度為±5.57 cm,完全滿足重力測量中高程精度要求。
위료만족구역중력조사고정도측지공작적요구,실현불동좌표계지간적전환,통과구역사대지수준면적이차정화방법급개발적연건,장GPS대지고전환도정상고。채용실측26개수준점외검핵정도,전구연건전환정도위±5.57 cm,완전만족중력측량중고정정도요구。
In order to realize the high precision surveying in regional gravity survey as well as the transformation of different systems of coordinates, this paper describes a method for refining the local quasi-geoid and develops software to realize conversion from the GPS geodetic height to normal height. The conversion precision is ±5.57 cm by the external check using 26 benchmarks, which can com?pletely meet the requirements of elevation precision in gravity survey.