CAJ | 학술논문

虽然GPS技术非常成熟，应用普遍，但其高程测量精度仍未超过国家等级几何水准测量的精度，究其原因除在GPS测量过程中存在各种观测误差外，最主要的是两种测量方法所采用的基准面不同。本文主要是通过在吉林松原灌区的GPS高程拟合工作，提出了在测区范围较小且测区内地形条件一般的情况下，二次多项式曲面函数拟合优于多面函数拟合的观点。
수연GPS기술비상성숙，응용보편，단기고정측량정도잉미초과국가등급궤하수준측량적정도，구기원인제재GPS측량과정중존재각충관측오차외，최주요적시량충측량방법소채용적기준면불동。본문주요시통과재길림송원관구적GPS고정의합공작，제출료재측구범위교소차측구내지형조건일반적정황하，이차다항식곡면함수의합우우다면함수의합적관점。
The application of GPS technology becomes more and more mature and extensive, but the accuracy of GPS elevation measurement also does not fit for the accuracy of the national grade geometry standards of measurement. Considering the reason, except for the variety of observational error in the GPS measurement, the most important reason is the different datum plane which the two measurement methods. Through the GPS elevation fitting results of Songyuan irrigation district in Jilin Province, this paper puts forward the view that when the mapping area is small and the terrain situation is ordinary, the quadratic polynomial surface function fitting is better than multi -faceted functions fitting.