GNSS形变监测中系统误差的时空相关性研究

SPACE-TIME RELEVANCE OF SYSTEMATIC ERRORS IN PRECISE GNSS DEFORMATION MONITORING

通过大量实测数据分析了系统误差的时空变化规律,论证了具有时空相关性的双差观测值系统误差残差的存在,实现了观测值的滤波及求差,提高了分离微小形变量的精度。

We analyzed the law of space-time change of systematic errors by a large number of measured data.We also demonstrated the existence of the residual error of systematic errors of double difference observation considering space-time relevance.The result of the experiments indicates that it can effectively improve the accuracy of separation of small deformation by taking away the residual error.