Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser
A method to identify and mitigate radio frequency interference (RFI) in microwave radiometry based on the use of a spectrum analyzer has been developed. This method has been tested with CAROLS L-band airborne radiometer data that are strongly corrupted by RFI. RFI is a major limiting factor in passi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2011-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/11/3/3037/ |
| _version_ | 1798041953423589376 |
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| author | Christophe Caudoux Mickaël Pardé Mehrez Zribi Monique Dechambre Pascal Fanise |
| author_facet | Christophe Caudoux Mickaël Pardé Mehrez Zribi Monique Dechambre Pascal Fanise |
| author_sort | Christophe Caudoux |
| collection | DOAJ |
| description | A method to identify and mitigate radio frequency interference (RFI) in microwave radiometry based on the use of a spectrum analyzer has been developed. This method has been tested with CAROLS L-band airborne radiometer data that are strongly corrupted by RFI. RFI is a major limiting factor in passive microwave remote sensing interpretation. Although the 1.400–1.427 GHz bandwidth is protected, RFI sources close to these frequencies are still capable of corrupting radiometric measurements. In order to reduce the detrimental effects of RFI on brightness temperature measurements, a new spectrum analyzer has been added to the CAROLS radiometer system. A post processing algorithm is proposed, based on selective filters within the useful bandwidth divided into sub-bands. Two discriminant analyses based on the computation of kurtosis and Euclidian distances have been compared evaluated and validated in order to accurately separate the RF interference from natural signals. |
| first_indexed | 2024-04-11T22:28:45Z |
| format | Article |
| id | doaj.art-cb2cf2758fee4ad886626b76a661cde4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:28:45Z |
| publishDate | 2011-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-cb2cf2758fee4ad886626b76a661cde42022-12-22T03:59:34ZengMDPI AGSensors1424-82202011-03-011133037305010.3390/s110303037Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum AnalyserChristophe CaudouxMickaël PardéMehrez ZribiMonique DechambrePascal FaniseA method to identify and mitigate radio frequency interference (RFI) in microwave radiometry based on the use of a spectrum analyzer has been developed. This method has been tested with CAROLS L-band airborne radiometer data that are strongly corrupted by RFI. RFI is a major limiting factor in passive microwave remote sensing interpretation. Although the 1.400–1.427 GHz bandwidth is protected, RFI sources close to these frequencies are still capable of corrupting radiometric measurements. In order to reduce the detrimental effects of RFI on brightness temperature measurements, a new spectrum analyzer has been added to the CAROLS radiometer system. A post processing algorithm is proposed, based on selective filters within the useful bandwidth divided into sub-bands. Two discriminant analyses based on the computation of kurtosis and Euclidian distances have been compared evaluated and validated in order to accurately separate the RF interference from natural signals.http://www.mdpi.com/1424-8220/11/3/3037/RFICAROLSL-bandradiometry |
| spellingShingle | Christophe Caudoux Mickaël Pardé Mehrez Zribi Monique Dechambre Pascal Fanise Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser Sensors RFI CAROLS L-band radiometry |
| title | Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser |
| title_full | Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser |
| title_fullStr | Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser |
| title_full_unstemmed | Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser |
| title_short | Analysis of RFI Identification and Mitigation in CAROLS Radiometer Data Using a Hardware Spectrum Analyser |
| title_sort | analysis of rfi identification and mitigation in carols radiometer data using a hardware spectrum analyser |
| topic | RFI CAROLS L-band radiometry |
| url | http://www.mdpi.com/1424-8220/11/3/3037/ |
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