Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar
One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simult...
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Gespeichert in:
| Autor*in: |
Ivic, Igor R [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: IEEE transactions on geoscience and remote sensing - New York, NY : IEEE, 1964, 55(2017), 4, Seite 2144-2166 |
|---|---|
| Übergeordnetes Werk: |
volume:55 ; year:2017 ; number:4 ; pages:2144-2166 |
| Links: |
|---|
| DOI / URN: |
10.1109/TGRS.2016.2637720 |
|---|
| Katalog-ID: |
OLC1992306753 |
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| 520 | |a One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. | ||
| 650 | 4 | |a Radar antennas | |
| 650 | 4 | |a Phase coding | |
| 650 | 4 | |a weather radar | |
| 650 | 4 | |a Meteorological radar | |
| 650 | 4 | |a phased array radar (PAR) | |
| 650 | 4 | |a Antenna measurements | |
| 650 | 4 | |a Couplings | |
| 650 | 4 | |a Meteorology | |
| 650 | 4 | |a radar polarimetry | |
| 650 | 4 | |a radar signal processing | |
| 650 | 4 | |a Remote sensing | |
| 650 | 4 | |a Research | |
| 650 | 4 | |a Radar systems | |
| 650 | 4 | |a Usage | |
| 773 | 0 | 8 | |i Enthalten in |t IEEE transactions on geoscience and remote sensing |d New York, NY : IEEE, 1964 |g 55(2017), 4, Seite 2144-2166 |w (DE-627)129601667 |w (DE-600)241439-9 |w (DE-576)015095282 |x 0196-2892 |7 nnns |
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10.1109/TGRS.2016.2637720 doi PQ20170901 (DE-627)OLC1992306753 (DE-599)GBVOLC1992306753 (PRQ)c1834-af63c446ec82791a73f62464879575441e88c95b7f8afbbb6abe507fc8276ffe0 (KEY)0048677920170000055000402144phasecodetomitigatethecopolarcorrelationcoefficien DE-627 ger DE-627 rakwb eng 620 550 DNB Ivic, Igor R verfasserin aut Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. Radar antennas Phase coding weather radar Meteorological radar phased array radar (PAR) Antenna measurements Couplings Meteorology radar polarimetry radar signal processing Remote sensing Research Radar systems Usage Enthalten in IEEE transactions on geoscience and remote sensing New York, NY : IEEE, 1964 55(2017), 4, Seite 2144-2166 (DE-627)129601667 (DE-600)241439-9 (DE-576)015095282 0196-2892 nnns volume:55 year:2017 number:4 pages:2144-2166 http://dx.doi.org/10.1109/TGRS.2016.2637720 Volltext http://ieeexplore.ieee.org/document/7819560 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_70 AR 55 2017 4 2144-2166 |
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10.1109/TGRS.2016.2637720 doi PQ20170901 (DE-627)OLC1992306753 (DE-599)GBVOLC1992306753 (PRQ)c1834-af63c446ec82791a73f62464879575441e88c95b7f8afbbb6abe507fc8276ffe0 (KEY)0048677920170000055000402144phasecodetomitigatethecopolarcorrelationcoefficien DE-627 ger DE-627 rakwb eng 620 550 DNB Ivic, Igor R verfasserin aut Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. Radar antennas Phase coding weather radar Meteorological radar phased array radar (PAR) Antenna measurements Couplings Meteorology radar polarimetry radar signal processing Remote sensing Research Radar systems Usage Enthalten in IEEE transactions on geoscience and remote sensing New York, NY : IEEE, 1964 55(2017), 4, Seite 2144-2166 (DE-627)129601667 (DE-600)241439-9 (DE-576)015095282 0196-2892 nnns volume:55 year:2017 number:4 pages:2144-2166 http://dx.doi.org/10.1109/TGRS.2016.2637720 Volltext http://ieeexplore.ieee.org/document/7819560 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_70 AR 55 2017 4 2144-2166 |
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10.1109/TGRS.2016.2637720 doi PQ20170901 (DE-627)OLC1992306753 (DE-599)GBVOLC1992306753 (PRQ)c1834-af63c446ec82791a73f62464879575441e88c95b7f8afbbb6abe507fc8276ffe0 (KEY)0048677920170000055000402144phasecodetomitigatethecopolarcorrelationcoefficien DE-627 ger DE-627 rakwb eng 620 550 DNB Ivic, Igor R verfasserin aut Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. Radar antennas Phase coding weather radar Meteorological radar phased array radar (PAR) Antenna measurements Couplings Meteorology radar polarimetry radar signal processing Remote sensing Research Radar systems Usage Enthalten in IEEE transactions on geoscience and remote sensing New York, NY : IEEE, 1964 55(2017), 4, Seite 2144-2166 (DE-627)129601667 (DE-600)241439-9 (DE-576)015095282 0196-2892 nnns volume:55 year:2017 number:4 pages:2144-2166 http://dx.doi.org/10.1109/TGRS.2016.2637720 Volltext http://ieeexplore.ieee.org/document/7819560 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_70 AR 55 2017 4 2144-2166 |
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10.1109/TGRS.2016.2637720 doi PQ20170901 (DE-627)OLC1992306753 (DE-599)GBVOLC1992306753 (PRQ)c1834-af63c446ec82791a73f62464879575441e88c95b7f8afbbb6abe507fc8276ffe0 (KEY)0048677920170000055000402144phasecodetomitigatethecopolarcorrelationcoefficien DE-627 ger DE-627 rakwb eng 620 550 DNB Ivic, Igor R verfasserin aut Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. Radar antennas Phase coding weather radar Meteorological radar phased array radar (PAR) Antenna measurements Couplings Meteorology radar polarimetry radar signal processing Remote sensing Research Radar systems Usage Enthalten in IEEE transactions on geoscience and remote sensing New York, NY : IEEE, 1964 55(2017), 4, Seite 2144-2166 (DE-627)129601667 (DE-600)241439-9 (DE-576)015095282 0196-2892 nnns volume:55 year:2017 number:4 pages:2144-2166 http://dx.doi.org/10.1109/TGRS.2016.2637720 Volltext http://ieeexplore.ieee.org/document/7819560 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_70 AR 55 2017 4 2144-2166 |
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10.1109/TGRS.2016.2637720 doi PQ20170901 (DE-627)OLC1992306753 (DE-599)GBVOLC1992306753 (PRQ)c1834-af63c446ec82791a73f62464879575441e88c95b7f8afbbb6abe507fc8276ffe0 (KEY)0048677920170000055000402144phasecodetomitigatethecopolarcorrelationcoefficien DE-627 ger DE-627 rakwb eng 620 550 DNB Ivic, Igor R verfasserin aut Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. Radar antennas Phase coding weather radar Meteorological radar phased array radar (PAR) Antenna measurements Couplings Meteorology radar polarimetry radar signal processing Remote sensing Research Radar systems Usage Enthalten in IEEE transactions on geoscience and remote sensing New York, NY : IEEE, 1964 55(2017), 4, Seite 2144-2166 (DE-627)129601667 (DE-600)241439-9 (DE-576)015095282 0196-2892 nnns volume:55 year:2017 number:4 pages:2144-2166 http://dx.doi.org/10.1109/TGRS.2016.2637720 Volltext http://ieeexplore.ieee.org/document/7819560 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_70 AR 55 2017 4 2144-2166 |
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620 550 DNB Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar Radar antennas Phase coding weather radar Meteorological radar phased array radar (PAR) Antenna measurements Couplings Meteorology radar polarimetry radar signal processing Remote sensing Research Radar systems Usage |
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ddc 620 misc Radar antennas misc Phase coding misc weather radar misc Meteorological radar misc phased array radar (PAR) misc Antenna measurements misc Couplings misc Meteorology misc radar polarimetry misc radar signal processing misc Remote sensing misc Research misc Radar systems misc Usage |
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ddc 620 misc Radar antennas misc Phase coding misc weather radar misc Meteorological radar misc phased array radar (PAR) misc Antenna measurements misc Couplings misc Meteorology misc radar polarimetry misc radar signal processing misc Remote sensing misc Research misc Radar systems misc Usage |
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ddc 620 misc Radar antennas misc Phase coding misc weather radar misc Meteorological radar misc phased array radar (PAR) misc Antenna measurements misc Couplings misc Meteorology misc radar polarimetry misc radar signal processing misc Remote sensing misc Research misc Radar systems misc Usage |
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| title |
Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar |
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| title_full |
Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar |
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Ivic, Igor R |
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IEEE transactions on geoscience and remote sensing |
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10.1109/TGRS.2016.2637720 |
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phase code to mitigate the copolar correlation coefficient bias in ppar weather radar |
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Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar |
| abstract |
One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. |
| abstractGer |
One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. |
| abstract_unstemmed |
One of the main challenges to the use of phased array radar for weather observations is the implementation of dual polarization with acceptable levels of cross-polar fields induced by the antenna. For example, to achieve acceptable differential reflectivity bias (i.e., less than 0.1 dB) using simultaneous transmission and reception of horizontally and vertically polarized waves, the isolation between coaxial cross-polar and copolar beams needs to be in excess of 50 dB. This presents a formidable challenge, because sufficient isolation cannot be achieved at an affordable price by the antenna hardware alone. Hence, additional approaches are required to reduce the differential reflectivity bias due to cross-polar fields. One proposed technique is a 180° pulse-to-pulse phase change of signals injected in either the horizontal or vertical ports of the transmission elements. This approach mitigates the differential reflectivity bias but may increase the bias of the copolar correlation coefficient estimates and, in some cases, the bias of the differential phase estimates. Herein, a modified phase code is proposed, which maintains the differential reflectivity bias suppression but reduces the copolar correlation coefficient and differential phase bias with respect to the originally proposed phase code. |
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| title_short |
Phase Code to Mitigate the Copolar Correlation Coefficient Bias in PPAR Weather Radar |
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http://dx.doi.org/10.1109/TGRS.2016.2637720 http://ieeexplore.ieee.org/document/7819560 |
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