| 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
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| URI标识: | http://ir.nssc.ac.cn/handle/122/5748
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| Appears in Collections: | 微波遥感部_期刊论文
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| 201707809050.pdf（8794KB） | 期刊论文 | 作者接受稿 | 限制开放 | | View
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