巫兆聪, 杨帆, 巫远, 周小杰, 何晓宇. 高程对TDICCD相机像移补偿影响分析[J]. 武汉大学学报 ( 信息科学版), 2015, 40(12): 1570-1574,1587. DOI: 10.13203/j.whugis20130667
引用本文: 巫兆聪, 杨帆, 巫远, 周小杰, 何晓宇. 高程对TDICCD相机像移补偿影响分析[J]. 武汉大学学报 ( 信息科学版), 2015, 40(12): 1570-1574,1587. DOI: 10.13203/j.whugis20130667
WU Zhaocong, YANG Fan, WU Yuan, ZHOU Xiaojie, HE Xiaoyu. The Influence of Elevation on the TDICCD Camera's Image Motion Compensation[J]. Geomatics and Information Science of Wuhan University, 2015, 40(12): 1570-1574,1587. DOI: 10.13203/j.whugis20130667
Citation: WU Zhaocong, YANG Fan, WU Yuan, ZHOU Xiaojie, HE Xiaoyu. The Influence of Elevation on the TDICCD Camera's Image Motion Compensation[J]. Geomatics and Information Science of Wuhan University, 2015, 40(12): 1570-1574,1587. DOI: 10.13203/j.whugis20130667

高程对TDICCD相机像移补偿影响分析

The Influence of Elevation on the TDICCD Camera's Image Motion Compensation

  • 摘要: 高分辨率遥感卫星中常使用TDICCD(时间延迟积分CCD)相机,为获取高质量遥感影像,在相机成像过程中须采用像移补偿技术,而目前大部分像移补偿忽略了高程的影响。基于参考椭球面下成像矢量模型,建立考虑高程的成像矢量模型及解算方法流程,精确地计算相机成像时像点对应地面成像点的坐标及像移补偿参数。根据计算结果,分析高程对像移补偿参数的影响,在此基础上,综合考虑像移补偿参数精度对高程误差的要求、星上存储空间及高程查询速度,讨论星载数字高程模型(DEM)的生成,为星载DEM的使用及TDICCD相机高精度像移补偿提供理论基础和实验分析。

     

    Abstract: The High-resolution remote sensing satellites often use TDICCD cameras, and the satellites should use the image motion compensation technology in the imaging process in order to acquire high-quality images. But now most technologies ignored the impact of the elevation. On the basic of imaging vector model under the ellipsoidal earth model, this paper built the vector model and the calculation flow that considered the earth elevation. According to the results, this paper analyzed the effects of elevation on the image motion compensation parameters. Then the paper discussed the production of the Space-borne DEM by synthetically considering the restriction of the elevation error, space-borne storage space and query speed. The use of Space-borne DEM will provide the theoretical basis and the experimental analysis for the high accuracy image motion compensation.

     

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