研究了直接用多期重复大地测量观测资料求剪切应变速率的相关平差方法,简单地讨论了判断计算结果中反映形变信息的可靠性的标准,并对相关平差法与一般方法计算结果的差别进行了比较。通过几个地区的实际计算,认为在地震工作中,为探测大范围的地壳水平运动,迫切需要大幅度提高目前的大地测量精度。 This paper studies the correlation adjustment method of direct shear strain rate using multi-period repeated geodetic observation data, and briefly discusses the criteria for judging the reliability of the deformation information in the calculation results. The correlation adjustment method and general method calculation result The differences were compared. Based on the actual calculation in several areas, it is considered that it is urgent to greatly improve the present geodetic accuracy in seismic work in order to detect a wide range of crustal horizontal motion.