为了验证多传感器卫星遥感影响无控制点区域网平差算法,采用理论分析和实验的方法,从卫星遥感影像区域网平差的成像几何模型出发,利用卫星遥感影像附带的参数拟合RPC模型参数,然后根据RPC模型和像面的仿射变换模型构建了多传感器卫星遥感影像区域网平差的数学模型。对某地区不同分辨率的SPOT-5 HRG影像进行直接空间前方交会处理和无控制点的区域网平差试验,验证了多传感器卫星遥感影响无控制点区域网平差算法。研究结果证实多传感器卫星影像的区域网平差技术在卫星遥感对地目标定位中有较好的应用前景,尤其可应用于话部无图区的困难地区测绘。
For resolving the problem of satellite imagery block adjustment without GCPs, based on analyzing the RPC model and the affine transformation in image plane, the math model of satellite imagery block adjustment without GCPs is established. Thus, the validity of the transformation in image plane plus RPC model has been verified by comparison between the result of the space intersection and the block adjustment without GCPs using the SPOT-5 HRG images in France. The results show the potential prospect of using this modeling for mapping terrain with satellite imagery in the western region of China