摘要
本文介绍了某山区带状GPS测量控制网的布设、观测及数据处理，并着重对该网的高程拟合模型和已知点分布进行了探讨。结果表明：在保证必要的GPS高程测量精度的前提下，只需联测全网总点数1／4－1／6的水准高程点，并采用分段折线模型进行高程拟会，能够使峡谷带状GPS测量的高程达到±0．10m的精度。
In this paper the author described the design, observing and data- processing of a GPS - Survey belt control network in a mountain area, emphasizing the research in this network's altitude fitting model and known points' distribution.The result shows that if necessary GPS-survey accuracy can be available and 1/4～1/6 points in the nework have been ob-served as benchmarks, the altitude precision of belt GPS-survey in canyon can achieve ±0.10m by using altitude fitting with a distribued broken - line model.
出处
《四川测绘》
1999年第3期110-113,共4页
Surveying and Mapping of Sichuan
