Application of multi-antenna GPS technique in the stability monitoring of roadside slopes

GPS having characteristics of high precision, quick speed, all weather and high automation has great potential in the stability monitoring of slopes and landslides. However, the high cost of GPS hardware has limited its wide spread use of GPS in this field. The multi-antenna GPS technique initiated by X.L. Ding has significantly reduced the cost of GPS hardware and provides a solution to a number of associated problems such as data management and power supply. This paper discussed practical applications of multi-antenna GPS technique in slope monitoring, which includes system design, data transmission and management, data quality analysis and control. Some examples of roadside slope monitoring are given to illustrate the points discussed.