Effectiveness of the Sixth Moment to Eliminate a Kurtosis Blind Spot in the Detection of Interference in a Radiometer

摘要

The kurtosis statistic is an effective detector of pulsed sinu-soidal 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.