高角度信号遮挡区域GPS测量控制网精度控制

Precision Control of Control Network for GPS Survey at High Angle in Signal- shadowed Regions

目前GPS已被广泛地应用于工程建设多个领域,但其在高山峡谷等高角度信号遮挡区域,数据采集质量难以保证,限制了GPS技术的使用范围。文章以达拉河某水电站为例,对如何提高高角度卫星信号遮挡区域的GPS静态数据采集质量,获得高质量的测量成果,进行了初步探讨。

GPS is widely applied in project construction fields. But, quality of the data collection cannot be assured and application of GPS technology in scope is restricted when GPS is applied for survey at a high angle in the signal-shadowed regions such as high mountains and deep valleys. In this paper, one hydropower project on the Dala River is sampled to discuss how to improve collection quality of GPS static data at a high angle in the signal-shadowed regions so as to obtain the high-quality survey achievement.