Acta Geodaetica et Cartographica Sinica ›› 2015, Vol. 44 ›› Issue (4): 399-406.doi: 10.11947/j.AGCS.2015.20140024

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Detection of ZY-3 Satellite Platform Jitter Using Multi-spectral Imagery

ZHU Ying1, WANG Mi1, PAN Jun1, HU Fen2   

  1. 1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
    2. Satellite Surveying and Mapping Application Center, National Administration of Surveying and Mapping and Geoinformation, Beijing 100830, China
  • Received:2014-01-04 Revised:2014-07-31 Online:2015-04-20 Published:2015-04-27
  • Supported by:

    The National Basic Research Program of China(973 Program)(Nos.2012CB719901;2014CB744201);The National Natural Science Foundation of China (Nos.41371430;91438203;91438112);Youth Innovation Fund of High Resolution Earth Observation Program

Abstract:

Satellite platform jitter is one of the factors that affect the quality of high resolution imagery, which can cause image blur and internal distortion. Taking ZiYuan-3 (ZY-3) multi-spectral camera as a prototype, this paper proposes a satellite platform jitter detection method by utilizing multi-spectral imagery. First, imaging characteristics of multispectral camera and the main factors affecting band-to-band registration error are introduced. Then the regularity of registration error caused by platform jitter is analyzed by theoretical derivation and simulation. Meanwhile, the platform jitter detection method based on high accuracy dense points matching is presented. Finally, the experiments were conducted by using ZY-3 multi-spectral imagery captured in different time. The result indicates that ZY-3 has a periodic platform jitter about 0.6 Hz in the imaging period of test data, and the jitter amplitude across track is greater than that along track, which causes periodic band-to-band registration error with the same frequency. The result shows the possibility of the improvement in geometric processing accuracy for ZY-3 imagery products and provides an important reference for satellite platform jitter source analysis and satellite platform design optimization.

Key words: satellite platform jitter, multi-spectral imagery, image matching, jitter detection, ZY-3

CLC Number: