摘要

<正> Based on the analyses for the characteristics of high precise GPS defor-mation monitor,according to thespatial relationship among the satellite, base point and monitoring point a new model and its correspondingalgorithm were presented to solve the monitoring point deformation directly at single epoch. In this method thecarrier phases is used as the basic observations, and the initial condition is precise baseline vectors obtained in thefirst period observations between the base point and monitoring point. This model is called the similar singledifference model (SSDM). The main error sources effecting the accuracy of deformations were analyzed briefly, thesingle epoch algorithm of the receiver clock offset was advanced. The numerical results of test data show that theSSDM and the single epoch algorithm of receiver clock offset advanced are reliable and correct.