【摘要】 为了高效提取活动构造研究的定量参数,利用美国解密的2m分辨率CORONAKH-4B卫星立体像对,实现了在JX4C数字摄影测量系统的立体测图,并通过影像匹配的方法建立数字高程模型(DEM)和数字正射影像(DOM).通过以上方法,以南天山库车冲断褶皱带为例,利用覆盖该区的影像,识别由活动断层和活动褶皱造成的第四纪沉积物的变形,提取地表变形参数,结合地震资料和野外测量,分析地表变形特征的深部构造机理.结果表明,经过处理的CORONAKH-4B像对可以在数字摄影测量系统下矢量测图,相对定向精度在0.01mm左右,绝对定向精度在10m左右.测量精度能够满足活动构造定量分析所需.该方法在地势复杂、人迹罕至区域研究中更具优势.更多还原

【Abstract】 In order to efficiently extract quantitative parameters in active tectonics research,JX4C digital photogrammetric system has been used to found stereo model based on CORONA KH-4B stereo pairs with 2 m resolution,which were declassified in 1995 by USA for scientific purpose.Meanwhile,large scale digital elevation model (DEM) and digital orthophoto mapping (DOM) have been formed.These processing techniques are applied in a case study of the Kuqa fold-and-thrust belt in southern Tianshan,China,to quantitatively analyze the Kumugeliemu active fault and the Qiulitage active fault-related folds,considering the seismic reflection profiles therein and data from field measurements.Results show that the CORONA stereo pairs can be used in JX4C digital photogrammetric system,and root mean square error (RMS) of relative orientation is about 0.01 mm,while absolute orientation is about 10 m.Some parameters for deformation of river terrace and fault and fold scarps are identified and measured,which are helpful to reveal the characters of active tectonics.The processing techniques are feasible and effective particularly in remote settings with complex topology and the measurement precision can meet the requirement for analysis of active tectonics.更多还原