激光与光电子学进展, 2018, 55 (8): 081102, 网络出版: 2018-08-13  

影像质量影响测绘卫星无控定位精度分析 下载: 634次

Influence of Image Quality on Uncontrolled Positioning Accuracy of Mapping Satellite
作者单位
1 长安大学地质工程与测绘学院, 陕西 西安 710054
2 西安中科星图空间数据技术有限公司, 陕西 西安 710100
3 西安测绘研究所, 陕西 西安 710054
摘要
测绘相机的影像质量会影响卫星遥感的立体定位精度,与影像质量密切相关的关键因素主要有调制传递函数、信噪比和量化位数。以“天绘一号”卫星影像为背景,研究无地面控制条件下成像质量对定位精度的影响并评估影像质量与立体定位精度之间的定量关系。通过在轨仿真三种因素的降质数据,验证了实验的有效性。
Abstract
The image quality of the surveying camera will affect the stereoscopic positioning accuracy of the satellite remote sensing. The key factors closely related to the image quality are modulation transfer function, signal to noise ratio and quantization bits. Taking Mapping Satellite-1 image as the background, we research the effect of positioning precision about the image quality in no ground controlled conditions, and evaluate the quantitative relationship between the image quality and the stereoscopic position accuracy. At last, the validity of the experimental results is verified by simulating three factors of degradation data in orbit.
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王一, 胡莘, 杨夏芳. 影像质量影响测绘卫星无控定位精度分析[J]. 激光与光电子学进展, 2018, 55(8): 081102. Wang Yi, Hu Xin, Yang Xiafang. Influence of Image Quality on Uncontrolled Positioning Accuracy of Mapping Satellite[J]. Laser & Optoelectronics Progress, 2018, 55(8): 081102.

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