ABSTRACT
China is a mountainous country. There are a great number of man-made and natural slopes along many of its roads with some unstable slopes threatening the safety of road construction and operation. Global Positioning System (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. However, the high cost of GPS hardware has limited the wide spread use of GPS for such applications. The multi-antenna GPS technology initiated by X. L. Ding has significantly reduced the cost of GPS and provides a solution to a number of associated problems such as data management and power supply. The multi-antenna GPS monitoring system is composed of the GPS antenna array, the GPS multi-antenna switch, the GPS receivers, data link component and the data processing center.
