Title :
Effectiveness of the Sixth Moment to Eliminate a Kurtosis Blind Spot in the Detection of Interference in a Radiometer
Author :
De Roo, Roger D. ; Misra, Sidharth
Author_Institution :
Dept. of Atmos., Oceanic & Space Sci., Univ. of Michigan, Ann Arbor, MI
Abstract :
The kurtosis statistic is an effective detector of pulsed sinusoidal RFI in a microwave radiometer, but it fails to detect RFI when the pulsed sinusoid is present for exactly half of the integration period. That is, the kurtosis is blind at an RFI duty cycle of 50%. In this paper, we explore the possibilities of using a higher order statistic to eliminate this detection blind spot in the kurtosis statistic. The higher order statistic does have sensitivity at an RFI duty cycle of 50%, but sensitivity is relatively low.
Keywords :
geophysical signal processing; geophysical techniques; interference suppression; probability; radiofrequency interference; radiometry; remote sensing; statistical analysis; high order statistic; kurtosis blind spot elimination; microwave radiometry; pulsed sinusoidal RFI detection; radiofrequency interference; sixth moment; Detectors; Digital communication; Higher order statistics; Interference elimination; Interference suppression; Microwave radiometry; Ocean temperature; Radiofrequency interference; Temperature sensors; Voltage; Detectors; digital radio; interference suppression; microwave radiometry;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4778995
