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Statistical Analysis for Performance of Detection and Imaging of Dynamic Targets Using the Geostationary Interferometric Microwave Sounder
Zhang, Ying; Liu, Hao; Wu, Ji; He, Jieying; Zhang, Cheng
Department微波遥感部
Source PublicationIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
2017
ISSN1939-1404
Language英语
AbstractPassive microwave remote sensing at 5056GHz is used for retrieving atmospheric temperature profiles from radiometric observations. The profiles can be used to investigate internal structure of tropical cyclones (TCs). Recently, a number of geostationary Earth orbiting (GEO) microwave instruments at 5056GHz have been proposed with the potential for continuous observation of fast-changing weather from GEO orbit. Since microwave application in GEO is a relatively new research area and microwave observation data from GEO are still unavailable, this study is intended to simulate brightness temperatures (BT) for GEO observation using weather forecast and radiative transfer model. A sequence of BT maps for full-earth disk containing typical observation target TCs are fed to GIMS simulation system and statistical BT variation pattern for TCs is analyzed based on a study of all TCs that occurred in Western Pacific Region in 2013. This is important because such simulation can serve as a preresearch to determine image distortion for dynamic target observation of GIMS and results can guide time-related parameter configuration for GEO microwave instrument. Results show that observing targets with rapid BT changes such as TCs with 30-min imaging period will increase root-mean-square error (RMSE) of retrieved image by about 0.0030.016 K and 0.050.17 K for full-earth disk and TC area, respectively, at 5056-GHz observation frequencies. Within 5056-GHz range, higher frequencies tend to have smaller retrieved image RMSE than lower frequencies do. Statistical BT change for higher grade of TC is about 0.253K greater than lower grade of TC in 6 h. The distinction among different grades of TC and observation frequencies indicates time-related parameters such as imaging period can be properly adjusted according to operational frequency channels as well as grade of the TC being monitored. IEEE
Indexed ByEI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6131
Collection微波遥感部
Recommended Citation
GB/T 7714
Zhang, Ying,Liu, Hao,Wu, Ji,et al. Statistical Analysis for Performance of Detection and Imaging of Dynamic Targets Using the Geostationary Interferometric Microwave Sounder[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,2017.
APA Zhang, Ying,Liu, Hao,Wu, Ji,He, Jieying,&Zhang, Cheng.(2017).Statistical Analysis for Performance of Detection and Imaging of Dynamic Targets Using the Geostationary Interferometric Microwave Sounder.IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.
MLA Zhang, Ying,et al."Statistical Analysis for Performance of Detection and Imaging of Dynamic Targets Using the Geostationary Interferometric Microwave Sounder".IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (2017).
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