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题名: Method to Reduce Imaging Errors in Dynamic Target Observation of the Geostationary Interferometric Microwave Sounder
作者: Zhang, Ying; Liu, Hao; Wu, Ji; Zhang, Cheng; He, Jieying
作者部门: 微波遥感部
关键词: Acoustic devices ; Antenna arrays ; Error correction ; Geostationary satellites ; Infrared television ; Interferometry ; Microwave acoustic devices ; Sounding apparatus ; Synthetic apertures ; Visibility
刊名: IEEE Geoscience and Remote Sensing Letters
ISSN号: 1545-598X
出版日期: 2017
卷号: 14, 期号:2, 页码:267-271
收录类别: EI
英文摘要: The Geostationary Interferometric Microwave Sounder (GIMS) is a synthetic aperture microwave sounder working in time-sharing sampling mode with a rotating circular antenna array, thus having a relatively long imaging period. Since target motion in the imaging period will pose a problem to imaging effect, observing dynamic target such as fast changing weather of tropical cyclones will introduce imaging error to the retrieved image of GIMS. A method that combines Kalman filter and interpolation to reduce imaging error are presented, which utilizes a time sequence of visibilities collected by time-sharing sampling method. Simulations of GIMS's observation process in viewing a series of near real case brightness temperature maps modeled by the National Center for Environmental Prediction Final Operational Global Analysis data/Weather Research and Forecasting Model/Radiative Transfer for Television Infrared Observation Satellite Operational Vertical Sounder method, together with postprocessing of dynamic observation error-correction processing and image retrieval are conducted for the method. Results show that the method can reduce imaging error even if there are random noises in visibilities. © 2004-2012 IEEE.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5748
Appears in Collections:微波遥感部_期刊论文

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