An Improved Radio Frequency Interference Model: Reevaluation of the Kurtosis Detection Algorithm Performance Under Central-Limit Conditions

被引：10
作者：
Misra, Sidharth [1 ]
De Roo, Roger D. [2 ]
Ruf, Christopher S. [2 ,3 ]
机构：
[1] CALTECH, Jet Prop Lab, Microwave Syst Technol Grp, Pasadena, CA 91109 USA
[2] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA
[3] Univ Michigan, Space Phys Res Lab, Ann Arbor, MI 48109 USA
来源：
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2012年 / 50卷 / 11期
基金：
美国国家航空航天局;
关键词：
Central limit; microwave radiometry; radio frequency interference (RFI); RADIOFREQUENCY INTERFERENCE; L-BAND; RFI DETECTION; MITIGATION; LAND;
D O I：
10.1109/TGRS.2012.2191972
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Recent airborne field campaigns making passive microwave measurements have observed some radio frequency interference (RFI) that remained undetected by the kurtosis RFI-detection algorithm. The current pulsed-sinusoidal model for RFI does not explain this anomalous behavior of the detection algorithm. In this paper, a new RFI model is developed that takes into account multiple RFI sources within an antenna footprint. The performance of the kurtosis algorithm with the new model is evaluated. The behavior of the kurtosis detection algorithm under central-limit conditions due to multiple sources is experimentally verified. The new RFI model offers a plausible explanation for the lack of detection by the kurtosis algorithm of the RFI otherwise observed.
引用
收藏
页码：4565 / 4574
页数：10
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