论文部分内容阅读
利用现场GPS定位的实测值,在尝试过最小二乘拟合并取得初步成果的基础上,进而采用更符合破裂带形态的线性立方插值函数,在破裂带主断面上,建立起一种理论与实测相结合的INSAR视线向(LOS)变化量的分解方程,得到了INSAR视线向位移分解的具有唯一性的解析解.本文的解析法吸纳了GPS定点实测值的精度优势,利用INSAR全天候、准实时获取连续形变场的技术特点,通过数学近似,最终获得了主破裂带上连续变化的水平位错及垂直位错同震形变曲线.
Based on the measured data of on-site GPS positioning, based on the least square fitting and the preliminary results obtained, a linear cubic interpolation function that is more in line with the shape of the rupture zone is used to establish a theory and The analytical solution of INSAR line-of-sight displacement decomposition is obtained by using the decomposition equation of INSAR line-of-sight (LOS) variation.According to the analytic method of this paper, The technical characteristics of the continuous deformation field are obtained in real time. By mathematical approximation, the horizontal dislocation and the vertical dislocation coseismic deformation curve are obtained finally on the main rupture zone.