Method and system using a polarimetric feature for detecting oil covered by ice 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US2014159937 A1 2014-06-12 [US20140159937]US9176225 B2 2015-11-03 [US9176225] / 2014-06-122015-11-03
申请号/申请日
2012US-13708289 / 2012-12-07
发明人
BEADLE EDWARD;GANTHIER EMILE;HOGUE STEPHEN T;FREEMAN SEAN;MEDLIN GREGORY;SHIPLEY JOHN WARNER;
申请人
HARRIS;
主分类号
IPC分类号
G01S-007/02G01S-007/40G01S-007/41G01S-013/88G01V-003/12G01V-003/17
摘要
(US9176225) A method for detecting an oil mass covered by ice includes collecting polarimetric radar data at different depths into the ice using at least one airborne platform moved about a search area above the ice so that the polarimetric radar data defines polarimetric volumetric radar data.  The polarimetric volumetric radar data is processed based upon at least one polarimetric feature to thereby detect an oil mass covered by the ice.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2012US-13708289 2012-12-07
主权利要求
(US9176225) That which is claimed is: 18.  A system for detecting an oil mass covered by ice comprising: at least one airborne platform comprising a transmitter and a receiver, and configured to collect polarimetric radar data at a plurality of different depths into the ice as the at least one airborne platform moves about a search area above the ice so that the polarimetric radar data defines polarimetric volumetric radar data; and   a processor and a memory coupled thereto configured to process the polarimetric volumetric radar data based upon at least one polarimetric feature to thereby detect an oil mass covered by the ice. 1. A method for detecting an oil mass covered by ice comprising: collecting polarimetric radar data at a plurality of different depths into the ice using a transmitter and a receiver carried by at least one airborne platform moved about a search area above the ice so that the polarimetric radar data defines polarimetric volumetric radar data; and   using a data processing unit for processing the polarimetric volumetric radar data based upon at least one polarimetric feature to thereby detect an oil mass covered by the ice. 2. The method according to claim 1 wherein collecting comprises collecting polarimetric radar data using a single airborne platform comprising the transmitter and a transmit antenna coupled to the transmitter and the receiver and a receive antenna coupled to the receiver. 3. The method according to claim 1 wherein collecting comprises collecting polarimetric radar data using a first airborne platform comprising the transmitter and a transmit antenna coupled to the transmitter, and a second airborne platform comprises the receiver and a receive antenna coupled to the receiver; and further comprising sending a reference signal from the first airborne platform to the second airborne platform. 4. The method according to claim 1 wherein collecting comprises collecting the polarimetric volumetric radar data using a frequency modulated, continuous wave (FMCW) waveform. 5. The method according to claim 4 further comprising adjusting an operating frequency of the FMCW waveform. 6. The method according to claim 5 further comprising determining at least one ice characteristic; and wherein adjusting comprises adjusting the operating frequency based upon the at least one ice characteristic. 7. The method according to claim 1 further comprising collecting the polarimetric radar data for the search area at a plurality of different times; and wherein processing further comprises using change detection based upon the plurality of different times. 8. The method according to claim 1 wherein the at least one polarimetric feature comprises at least one of entropy, anisotropy, polarimetric span, mean scattering angle, alternative entropy, standard deviation of CDP, conformity coefficient, co-polarization correlation coefficient, combined feature, circular polarization coherence, and Bragg likelihood ratio. 9. The method according to claim 1 wherein the search area comprises a predetermined area around an oil extraction site. 10. The method according to claim 1 wherein the search area comprises a predetermined area around an oil pipeline site. 11. The method according to claim 1 wherein the at least one airborne platform comprises at least one unmanned airborne platform. 12. A method for detecting an oil mass covered by ice using polarimetric radar data at a plurality of different depths into the ice using a transmitter and a receiver carried by at least one airborne platform moved about a search area above the ice so that the polarimetric radar data defines polarimetric volumetric radar data, the method comprising: using a data processing unit for processing the polarimetric volumetric radar data based upon at least one polarimetric feature to thereby detect an oil mass covered by the ice. 13. The method according to claim 12 wherein the polarimetric radar data is collected using a single airborne platform comprising the transmitter and a transmit antenna coupled to the transmitter and the receiver and a receive antenna coupled to the receiver. 14. The method according to claim 12 wherein the polarimetric radar data is collected using a first airborne platform comprising the transmitter and a transmit antenna coupled to the transmitter, and a second airborne platform comprises the receiver a receive antenna coupled to the receiver; and further comprising sending a reference signal from the first airborne platform to the second airborne platform. 15. The method according to claim 12 the polarimetric volumetric radar data is collected using a frequency modulated, continuous wave (FMCW) waveform. 16. The method according to claim 12 the polarimetric radar data for the search area is collected at a plurality of different times; and wherein processing further comprises using change detection based upon the plurality of different times. 17. The method according to claim 12 wherein the at least one polarimetric feature comprises at least one of entropy, anisotropy, polarimetric span, mean scattering angle, alternative entropy, standard deviation of CDP, conformity coefficient, co-polarization correlation coefficient, combined feature, circular polarization coherence, and Bragg likelihood ratio. 19. The system according to claim 18 wherein said at least one airborne platform comprises a single airborne platform comprising the transmitter and a transmit antenna coupled to the transmitter and the receiver and a receive antenna coupled to the receiver. 20. The system according to claim 18 wherein said at least one airborne platform comprises a first airborne platform comprising the transmitter and a transmit antenna coupled to the transmitter, and a second airborne platform comprising the receiver and a receive antenna coupled to the receiver, and with the first airborne platform configured to send a reference signal to the second airborne platform. 21. The system according to claim 18 wherein said at least one airborne platform is configured to collect the polarimetric volumetric radar data using a frequency modulated, continuous wave (FMCW) waveform. 22. The system according to claim 21 wherein said at least one airborne platform is configured to adjust an operating frequency of the FMCW waveform. 23. The system according to claim 21 wherein said at least one airborne platform is configured to collect the polarimetric radar data for the search area at a plurality of different times; and wherein said processor is configured to use change detection based upon the plurality of different times. 24. The system according to claim 21 wherein the at least one polarimetric feature comprises at least one of entropy, anisotropy, polarimetric span, mean scattering angle, alternative entropy, standard deviation of COP, conformity coefficient, co-polarization correlation coefficient, combined feature, circular polarization coherence, and Bragg likelihood ratio.
法律状态
(US9176225) LEGAL DETAILS FOR US2014159937  Actual or expected expiration date=2034-01-27    Legal state=ALIVE    Status=GRANTED     Event publication date=2012-12-07  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US13708289  Application date=2012-12-07  Standardized application number=2012US-13708289     Event publication date=2013-02-11  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: HARRIS CORPORATION, FLORIDA ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:BEADLE, EDWARD GANTHIER, EMILE HOGUE, STEPHEN AND OTHERS SIGNING DATES FROM 20130107 TO 20130115 REEL/FRAME:029788/0335     Event publication date=2014-06-12  Event code=US/A1  Event type=Examination events  Application published  Publication country=US  Publication number=US2014159937  Publication stage Code=A1  Publication date=2014-06-12  Standardized publication number=US20140159937     Event publication date=2015-11-03  Event code=US/B2  Event indicator=Pos  Event type=Event indicating In Force  Granted patent as second publication  Publication country=US  Publication number=US9176225  Publication stage Code=B2  Publication date=2015-11-03  Standardized publication number=US9176225     Event publication date=2015-11-03  Event code=US/354  Event indicator=Pos  Event type=Event indicating In Force  Event type=Extension of term of duration of protection  Patent term extension under  35 U.S.C 154(b) until/for:  Number of days of extension=416
专利类型码
A1B2
国别省市代码
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