基于BDS的地表沉降监测系统设计

Design of land subsidence monitoring system based on BDS

地质灾害造成直接或间接的损失巨大,本文提出一种基于北斗卫星导航系统(BDS)和传感技术的地表沉降安全监测方法。利用连续运行卫星定位参考站(CORS)技术,采用双差解算模式,在优化载波相位差分数据处理方法的基础上,同时处理基准站和监测站载波相位等数据,得到精确的监测点相对于基准点的形变量,实现了对地表沉降的实时监测、综合分析、分级预警和预测评估等功能。研究以武汉市后湖片区为例,该系统的应用显著提高了地表沉降监测的实时性、准确性和预测评估的可靠性。

The direct or indirect loss caused by geological disasters is enormous,this paper presents a method of surface subsidence safety monitoring based on BDS(BeiDou Navigation Satellite System)and sensing technology.Using the method of CORS(Continuously Operating Reference Station)and double differential model,on the basis of optimizing the carrier phase difference data processing method,the data such as the carrier phase of the reference station and the carrier phase of the monitoring station are parallel processed,and the deformation of the monitoring point relative to the reference point is obtained,realizing the real-time monitoring,comprehensive analysis,classification and forecasting and evaluation of the surface settlement.Taking Wuhan as the experimental area,the application of the system significantly improves the real-time,accuracy and reliability of the prediction of surface subsidence monitoring.