【摘要】 由于时间去相干、空间去相干和大气扰动等因素的影响,传统InSAR技术在形变监测中存在着很大的局限性,而当今新兴发展起来的CRInSAR、PSInSAR技术则不受这些因素的限制,从而大大提高了InSAR技术在形变监测尤其是在微量形变监测中的精度。该文首先分析了传统InSAR技术所存在的局限性;引入了CR、PS高相干性散射体基本概念,并介绍CRIn-SAR、PSInSAR技术在当前国际上的研究进展情况;通过PSInSAR算法的应用研究,得出将CR与PS进行联合解算的必要性与优势,并提出高相干性散射体联合解算算法。更多还原

【Abstract】 Due to the effect of temporal decorrelation,spatial decorrelation and atmospheric disturbance,conventional InSAR technology is severely limited in deformation monitoring.However,some new technologies developed nowadays,such as CRInSAR and PSInSAR,are not restricted by these factors.They could greatly improve the precision of InSAR technology in deformation monitoring,especially in subtle deformation monitoring.This paper analyzes the limitations of conventional InSAR technology at first,and then introduces the basic conception of CR and PS and their research development.By applying the PSInSAR algorithm,we illustrate the necessity and advantage of combined calculation of CR and PS,and propose the algorithm.更多还原