测绘学报 ›› 2017, Vol. 46 ›› Issue (10): 1500-1508.doi: 10.11947/j.AGCS.2017.20170384

• 摄影测量学与遥感 • 上一篇    下一篇

高分辨率卫星颤振探测补偿的关键技术方法与应用

童小华, 叶真, 刘世杰   

  1. 同济大学测绘与地理信息学院, 上海 200092
  • 收稿日期:2017-07-05 修回日期:2017-09-08 出版日期:2017-10-20 发布日期:2017-10-26
  • 作者简介:童小华(1971-),男,博士,教授,研究方向为遥感空间信息可信度理论方法与应用。E-mail:xhtong@tongji.edu.cn
  • 基金资助:
    国家自然科学基金(41631178;41325005;41401531);国家测绘地理信息局卫星测绘应用中心资源三号卫星应用系统工程定制软件项目

Essential Technology and Application of Jitter Detection and Compensation for High Resolution Satellites

TONG Xiaohua, YE Zhen, LIU Shijie   

  1. College of Surveying and Geo-informatics, Tongji University, Shanghai 200092, China
  • Received:2017-07-05 Revised:2017-09-08 Online:2017-10-20 Published:2017-10-26
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41631178;41325005;41401531);ZY-3 Satellite Application System Software Project by Satellite Surveying and Mapping Application Center, National Administration of Surveying, Mapping and Geoinformation

摘要: 卫星平台颤振是高分辨率卫星在轨运行普遍存在的复杂现象,会影响卫星的测图精度和成像质量。本文提出了综合多传感器数据处理的卫星颤振探测与补偿技术方法,根据多光谱影像、三线阵影像、密集地面控制和姿态测量数据进行了颤振探测,采用像方补偿和姿态补偿两种方式进行了颤振补偿。利用本文提出的技术对资源三号卫星的平台颤振问题进行了处理和分析,试验结果验证了所提出的方法用于颤振探测与补偿的有效性与可靠性。颤振变化规律分析表明资源三号卫星颤振的频率保持在0.6~0.7 Hz的范围内,而颤振幅值从在轨早期的1个像素下降到0.4个像素以下并趋于平稳。

关键词: 卫星颤振, 颤振探测, 颤振补偿, 资源三号卫星

Abstract: Satellite jitter is a common and complex phenomenon for the on-orbit high resolution satellites, which may affect the mapping accuracy and quality of imagery. A framework of jitter detection and compensation integrating data processing of multiple sensors is proposed in this paper. Jitter detection is performed based on multispectral imagery, three-line-array imagery, dense ground control and attitude measurement data, and jitter compensation is conducted both on image and on attitude with the sensor model. The platform jitter of ZY-3 satellite is processed and analyzed using the proposed technology, and the results demonstrate the feasibility and reliability of jitter detection and compensation. The variation law analysis of jitter indicates that the frequencies of jitter of ZY-3 satellite hold in the range between 0.6 and 0.7 Hz, while the amplitudes of jitter of ZY-3 satellite drop from 1 pixel in the early stage to below 0.4 pixels and tend to remain stable in the following stage.

Key words: satellite jitter, jitter detection, jitter compensation, ZY-3 satellite

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