GNSS地震监测技术研究进展与展望OA

As one of the most common natural disasters,earthquakes poses a serious threat to human life.High-rate Global Navigation Satellite System(GNSS)technology has become an important way for earthquake monitoring,with particular advantage in capturing broadband seismic displacements at millimeter to centimeter-level accuracy.The research progress of GNSS earthquake monitoring technology is analyzed,its application prospects in earthquake monitoring and early warning are discussed,and some methods are introduced such as Real-Time Kinematic(RTK),Precise Point Positioning(PPP),Variometric method,Temporal Point Positioning(TPP),and Dynamic PPP(DPPP).GNSS and sensor fusion technology,as well as error separation methods are explored,and the applications of GNSS in coseismic displacement monitoring,earthquake magnitude estimation,earthquake intensity,surface displacement,and slip distribution are analyzed.Advances of the Beidou Navigation Satellite System and GNSS technology are driving the future of GNSS earthquake monitoring toward new technologies,multi-source sensor combination,and intelligent data processing.