A parameter identification method of high frequency vibration model on TDI image

Jiong Liang, Ting Fa Xu, Ming Zhu Shi, Liang Feng, Guo Qiang Ni

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

To accurately discern the parameters of high frequency vibration blur model on a single TDI image, the research analyzes the imaging function when high frequency vibration occurs in TDI mode. The method of simplifying the vibration model is offered and verified, which promises the MTF will be only related with motion angle and vibration amplitude. Three algorithms for motion direction discerning are compared with one another, which are Radon transform, autocorrelation analysis and cepstral method. The conclusion reveals that cepstral method can measure the most accurate motion angle. Four algorithms for vibration amplitude discerning are compared, which are the quadratic Radon transform, cepstral analysis, autocorrelation analysis and direct analysis on frequency spectrum. It reveals that direct analysis on Log frequency spectrum is the most accurate for vibration amplitude. The research suggests that composition of cesptral method and direct analysis on log frequency spectrum could obtain the highly accurate parameters in highfrequency vibration model.

源语言英语
主期刊名2013 International Conference on Optical Instruments and Technology
主期刊副标题Optoelectronic Imaging and Processing Technology
DOI
出版状态已出版 - 2013
活动2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, OIT 2013 - Beijing, 中国
期限: 17 11月 201319 11月 2013

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
9045
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, OIT 2013
国家/地区中国
Beijing
时期17/11/1319/11/13

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