三峡库区GPS滑坡监测网优化方法研究

Study on optimization method of GPS landslide monitoring network in Three Gorges Reservoir Area

针对三峡地区GPS信号易受遮挡的问题,通过选择合理的观测时间、适当增加时段长度、提高截止高度角,改善了GPS基线质量,在此基础上,采用解析法建立了监测网优化模型,取得了较优的监测网形。研究成果对全库区滑坡监测具有指导作用。

For difficult problem of GPS signal shielding in Three Gorges Reservoir area, by selecting the reasonable ob- servation period, properly increasing observation time, raising elevation angle, the accuracy of GPS baseline was im- proved, on the base of these, the optimal monitoring network shape were obtained using the analytic method, and a better monitoring mesh was achieved. The research results had a guiding role in landslide monitoring in the whole reservoir area.