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On the Use of Auxiliary Receive Channels for Clutter Mitigation With Phased Array Weather Radars
Phased array radars (PARs) are attractive in weather surveillance primarily because of their capability to electronically steer. When combined with the recently developed beam multiplexing (BMX) technique, these radars can obtain very rapid update scans that are useful in monitoring severe weather....
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| Published in: | IEEE transactions on geoscience and remote sensing 2009-01, Vol.47 (1), p.272-284 |
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| Main Authors: | , , , , , |
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| cites | cdi_FETCH-LOGICAL-c492t-99d7fb8fddec89ccd817c919c70769bc0f10360ad75b036aab274918dfe8d8733 |
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| container_title | IEEE transactions on geoscience and remote sensing |
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| creator | Le, K.D. Palmer, R.D. Boon Leng Cheong Tian-You Yu Guifu Zhang Torres, S.M. Le, K.D. Palmer, R.D. |
| description | Phased array radars (PARs) are attractive in weather surveillance primarily because of their capability to electronically steer. When combined with the recently developed beam multiplexing (BMX) technique, these radars can obtain very rapid update scans that are useful in monitoring severe weather. A consequence is that the small number of contiguous samples of the time series obtained can be a challenge for temporal/spectral filters used for clutter mitigation. As a result, the accurate extraction of weather signals can become the limiting performance barrier for PARs that employ BMX in clutter-dominated scattering fields. By exploiting the spatial correlation of the auxiliary channel signals, the effect of clutter contamination can be reduced in these conditions. In this paper, three spatial filtering techniques that used low-gain auxiliary receive channels are presented. The effect of clutter mitigation was studied using numerical simulations of a tornadic environment for changes in signal-to-noise ratio, clutter-to-signal ratio, number of time series samples, varying clutter spectral widths, and maximum weight constraints. Since such data are not currently available from a horizontally pointed phased array weather radar, experimental validation was applied to an existing data set from the turbulent eddy profiler, which is a vertically pointed PAR. Although preliminary, the results show promise for clutter mitigation with extremely short nonuniform sampling. |
| doi_str_mv | 10.1109/TGRS.2008.2001260 |
| format | article |
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When combined with the recently developed beam multiplexing (BMX) technique, these radars can obtain very rapid update scans that are useful in monitoring severe weather. A consequence is that the small number of contiguous samples of the time series obtained can be a challenge for temporal/spectral filters used for clutter mitigation. As a result, the accurate extraction of weather signals can become the limiting performance barrier for PARs that employ BMX in clutter-dominated scattering fields. By exploiting the spatial correlation of the auxiliary channel signals, the effect of clutter contamination can be reduced in these conditions. In this paper, three spatial filtering techniques that used low-gain auxiliary receive channels are presented. The effect of clutter mitigation was studied using numerical simulations of a tornadic environment for changes in signal-to-noise ratio, clutter-to-signal ratio, number of time series samples, varying clutter spectral widths, and maximum weight constraints. Since such data are not currently available from a horizontally pointed phased array weather radar, experimental validation was applied to an existing data set from the turbulent eddy profiler, which is a vertically pointed PAR. Although preliminary, the results show promise for clutter mitigation with extremely short nonuniform sampling.</description><identifier>ISSN: 0196-2892</identifier><identifier>EISSN: 1558-0644</identifier><identifier>DOI: 10.1109/TGRS.2008.2001260</identifier><identifier>CODEN: IGRSD2</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Adaptive arrays ; adaptive signal processing ; Applied geophysics ; Channels ; Climatology ; Clutter ; Contamination ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Filtering ; Filters ; Internal geophysics ; Meteorological radar ; Monitoring ; Numerical simulation ; phased array radar (PAR) ; Phased arrays ; Radar ; radar clutter ; radar interference ; Radar scattering ; remote sensing ; Spectra ; Studies ; Surveillance ; Time series ; Weather</subject><ispartof>IEEE transactions on geoscience and remote sensing, 2009-01, Vol.47 (1), p.272-284</ispartof><rights>2009 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2009</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c492t-99d7fb8fddec89ccd817c919c70769bc0f10360ad75b036aab274918dfe8d8733</citedby><cites>FETCH-LOGICAL-c492t-99d7fb8fddec89ccd817c919c70769bc0f10360ad75b036aab274918dfe8d8733</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4694058$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>315,786,790,4043,27956,27957,27958,55147</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21011184$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Le, K.D.</creatorcontrib><creatorcontrib>Palmer, R.D.</creatorcontrib><creatorcontrib>Boon Leng Cheong</creatorcontrib><creatorcontrib>Tian-You Yu</creatorcontrib><creatorcontrib>Guifu Zhang</creatorcontrib><creatorcontrib>Torres, S.M.</creatorcontrib><creatorcontrib>Le, K.D.</creatorcontrib><creatorcontrib>Palmer, R.D.</creatorcontrib><title>On the Use of Auxiliary Receive Channels for Clutter Mitigation With Phased Array Weather Radars</title><title>IEEE transactions on geoscience and remote sensing</title><addtitle>TGRS</addtitle><description>Phased array radars (PARs) are attractive in weather surveillance primarily because of their capability to electronically steer. When combined with the recently developed beam multiplexing (BMX) technique, these radars can obtain very rapid update scans that are useful in monitoring severe weather. A consequence is that the small number of contiguous samples of the time series obtained can be a challenge for temporal/spectral filters used for clutter mitigation. As a result, the accurate extraction of weather signals can become the limiting performance barrier for PARs that employ BMX in clutter-dominated scattering fields. By exploiting the spatial correlation of the auxiliary channel signals, the effect of clutter contamination can be reduced in these conditions. In this paper, three spatial filtering techniques that used low-gain auxiliary receive channels are presented. The effect of clutter mitigation was studied using numerical simulations of a tornadic environment for changes in signal-to-noise ratio, clutter-to-signal ratio, number of time series samples, varying clutter spectral widths, and maximum weight constraints. Since such data are not currently available from a horizontally pointed phased array weather radar, experimental validation was applied to an existing data set from the turbulent eddy profiler, which is a vertically pointed PAR. Although preliminary, the results show promise for clutter mitigation with extremely short nonuniform sampling.</description><subject>Adaptive arrays</subject><subject>adaptive signal processing</subject><subject>Applied geophysics</subject><subject>Channels</subject><subject>Climatology</subject><subject>Clutter</subject><subject>Contamination</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Filtering</subject><subject>Filters</subject><subject>Internal geophysics</subject><subject>Meteorological radar</subject><subject>Monitoring</subject><subject>Numerical simulation</subject><subject>phased array radar (PAR)</subject><subject>Phased arrays</subject><subject>Radar</subject><subject>radar clutter</subject><subject>radar interference</subject><subject>Radar scattering</subject><subject>remote sensing</subject><subject>Spectra</subject><subject>Studies</subject><subject>Surveillance</subject><subject>Time series</subject><subject>Weather</subject><issn>0196-2892</issn><issn>1558-0644</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqF0U1rFDEYB_AgCq7VDyBeguDLZWqeTCYvx2WxVahU1pYeYzZ54qZMZ2oyI-23N8suPXiolyeB_J7_IX9CXgM7BmDm08Xp-scxZ0zvBnDJnpAFdJ1umBTiKVkwMLLh2vDn5EUp19WIDtSC_Dwf6LRFelmQjpEu57vUJ5fv6Ro9pj9IV1s3DNgXGsdMV_08TZjptzSlX25K40Cv0rSl37euYKDLnN09vUJXEzNdu-ByeUmeRdcXfHU4j8jlyeeL1Zfm7Pz062p51nhh-NQYE1Tc6BgCem28DxqUN2C8YkqajWcRWCuZC6rb1ItzG66EAR0i6qBV2x6RD_vc2zz-nrFM9iYVj33vBhznYrVUStQoVuX7R2Ur2xZMnf-DHLhQnTEVfnwUglKsFUZyVenbf-j1OOeh_ozVnRISpOIVwR75PJaSMdrbnG5qKxaY3dVtd3XbXd32UHfdeXcIdsW7PmY3-FQeFjkwANCiujd7lxDx4VlII1in27_mV7Fl</recordid><startdate>200901</startdate><enddate>200901</enddate><creator>Le, K.D.</creator><creator>Palmer, R.D.</creator><creator>Boon Leng Cheong</creator><creator>Tian-You Yu</creator><creator>Guifu Zhang</creator><creator>Torres, S.M.</creator><creator>Le, K.D.</creator><creator>Palmer, R.D.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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When combined with the recently developed beam multiplexing (BMX) technique, these radars can obtain very rapid update scans that are useful in monitoring severe weather. A consequence is that the small number of contiguous samples of the time series obtained can be a challenge for temporal/spectral filters used for clutter mitigation. As a result, the accurate extraction of weather signals can become the limiting performance barrier for PARs that employ BMX in clutter-dominated scattering fields. By exploiting the spatial correlation of the auxiliary channel signals, the effect of clutter contamination can be reduced in these conditions. In this paper, three spatial filtering techniques that used low-gain auxiliary receive channels are presented. The effect of clutter mitigation was studied using numerical simulations of a tornadic environment for changes in signal-to-noise ratio, clutter-to-signal ratio, number of time series samples, varying clutter spectral widths, and maximum weight constraints. Since such data are not currently available from a horizontally pointed phased array weather radar, experimental validation was applied to an existing data set from the turbulent eddy profiler, which is a vertically pointed PAR. Although preliminary, the results show promise for clutter mitigation with extremely short nonuniform sampling.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TGRS.2008.2001260</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | IEEE transactions on geoscience and remote sensing, 2009-01, Vol.47 (1), p.272-284 |
| issn | 0196-2892 1558-0644 |
| language | eng |
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| source | IEEE Electronic Library (IEL) Journals |
| subjects | Adaptive arrays adaptive signal processing Applied geophysics Channels Climatology Clutter Contamination Earth sciences Earth, ocean, space Exact sciences and technology Filtering Filters Internal geophysics Meteorological radar Monitoring Numerical simulation phased array radar (PAR) Phased arrays Radar radar clutter radar interference Radar scattering remote sensing Spectra Studies Surveillance Time series Weather |
| title | On the Use of Auxiliary Receive Channels for Clutter Mitigation With Phased Array Weather Radars |
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