基于Sigmoid曲线的微波成像仪数据的定位评估与修正
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摘要
风云三号第三颗卫星(FY-3C)上装载的微波辐射成像仪(MWRI)为我们提供了地表层和大气层的重要信息.自从风云三号卫星发射以来,业务上MWRI的定位精度还存在像素级别的误差.本文中在原有的海岸线拐点法的基础上,提出使用Sigmoid曲线来进行定位估计.实验结果表明提出方法与原有方法相比能定位更加准确的海岸线点.此外,我们还将获得的海岸线点与真值点相比来计算定位误差,从而调整卫星姿态.
Microwave Radiation Imager( MWRI) onboard FengYun( FY)-3 C satellite provides important information of the earth's surface and atmosphere for us. The operational geolocation accuracy of the MWRI is at the pixel level since FY-3 C satellite is launched. In this paper,we improved on original coastline inflection method and proposed to adopt the Sigmoid curve for geolocation estimation. Experimental results demonstrate that proposed method can obtain more accurate coastline points than previous method. In addition,we also computed geolocation errors by comparing with ground truth to adjust the attitude of the satellite.
Microwave Radiation Imager( MWRI) onboard FengYun( FY)-3 C satellite provides important information of the earth's surface and atmosphere for us. The operational geolocation accuracy of the MWRI is at the pixel level since FY-3 C satellite is launched. In this paper,we improved on original coastline inflection method and proposed to adopt the Sigmoid curve for geolocation estimation. Experimental results demonstrate that proposed method can obtain more accurate coastline points than previous method. In addition,we also computed geolocation errors by comparing with ground truth to adjust the attitude of the satellite.
引文
[1]Yang H,Zou X,Li X,et al.Environmental data records from Feng Yun-3B microwave radiation imager[J].IEEE Trans Geosci Remote Sens.,2012,50(12):4986-4993,2012.
[2]Tang F,Dong H,Li N,et al.Geolocation errors and correction of FY-3B microwave radiation imager measurement IEEETrans[J].Geosci Remote Sens,2016,20(6):1342-1351.
[3]Yang H,Weng F,Lv L,et al.The Feng Yun-3 microwave radiation imager on-orbit verification IEEE Trans[J].Geosci Remote Sens,2015,54(1):407-420.
[4]Tang F,Zou X,Yang H,et al,Estimation and correction of geolocation errors in Feng Yun-3C microwave radiation imager data IEEE Trans[J].Geosci Remote Sens,2015,54(1):407-420.
[5]Poe G A,Conway R W.A study of the geolocation errors of the Special Sensor Microwave/Imager(SSM/I),IEEE Trans[J].Geosci Remote Sens,1990,28(5):791-799.
[6]Atkinson N C,McLellan S.Initial evaluation of AMSU-B in-orbit data[J].Proc SPIE,1998,35(3):276-287.
[7]Wolfe R E,Nishihama M,Fleig A J,et al.Achieving sub-pixel geolocation accuracy in support of MODIS land science[J].Remote Sens Environ,2002,83(1):31-49.
[8]Purdy W E,Gaiser P W,Poe G A,et al.Geolocation and pointing accuracy analysis for the Wind Sat sensor[J].IEEETrans Geosci Remote Sens,2006,44(3):496-505.
[9]Guan M,Yang Z.Geolocation method for FY-3 MWRI’s remote sensing image[J].J Remote Sens,2009,13(3):463-474.
[10]Hoffman L H,Weaver W L,Kibler J F.Calculation and accuracy of ERBE scanner measurement locations[J].NASA Tech Rep N,1987(10):1-34.
[11]Currey J C.Geolocation assessment algorithm for CALIPSO using coastline detection NASA Tech[J].Rep,2002.
[12]Gregorich D T and Aumann H H.“Verification of AIRS boresight accuracy using coastline detection[J].IEEE Trans Geosci Remote Sens.2003,41(2):298-302.
[13]Smith G L,Priestley K J,Hess P C,et al.Validation of geolocation of measurements of the Clouds and the Earth‘s Radiant Energy System scanning radiometers aboard three spacecraft[J].J Atmos Ocean Technol,2009,26(11):2379-2391.
[14]Esplin M,Robinson K,Esplin B,et al.Advanced Technology Microwave Sounder(ATMS)geolocation analysis[J].Proc Annu Meet Amer Meteorol Soc,2012,216:22-26.
[15]Moigne J L,Colerhodes A A,Eastman R D,et al.Image registration for remote sensing:multitemporal and multisensor image registration[J].Image regist Remote sens,2011,(10):1-8.
[16]Wolfe R E,Nishihama M,Fleig A J,et al.Achieving sub-pixel geolocation accuracy in support of MODIS land science[J].Remote Sens Environ,2002,83(1/2):31-49.
[17]Khlopenkov K V,Trishchenko A P,Luo Y.Achieving subpixel georeferencing accuracy in the Canadian AVHRRprocessing system[J].IEEE Trans Geosci Remote Sens,2010,48(4):2150-2161.
[18]Wolfe R E,Lin G,Nishihama M,et al.Suomi NPP VIIRS prelaunch and on-orbit geometric calibration and characterization[J].J Geophys Res Atmos,2013,118(20):11508-11521.
[2]Tang F,Dong H,Li N,et al.Geolocation errors and correction of FY-3B microwave radiation imager measurement IEEETrans[J].Geosci Remote Sens,2016,20(6):1342-1351.
[3]Yang H,Weng F,Lv L,et al.The Feng Yun-3 microwave radiation imager on-orbit verification IEEE Trans[J].Geosci Remote Sens,2015,54(1):407-420.
[4]Tang F,Zou X,Yang H,et al,Estimation and correction of geolocation errors in Feng Yun-3C microwave radiation imager data IEEE Trans[J].Geosci Remote Sens,2015,54(1):407-420.
[5]Poe G A,Conway R W.A study of the geolocation errors of the Special Sensor Microwave/Imager(SSM/I),IEEE Trans[J].Geosci Remote Sens,1990,28(5):791-799.
[6]Atkinson N C,McLellan S.Initial evaluation of AMSU-B in-orbit data[J].Proc SPIE,1998,35(3):276-287.
[7]Wolfe R E,Nishihama M,Fleig A J,et al.Achieving sub-pixel geolocation accuracy in support of MODIS land science[J].Remote Sens Environ,2002,83(1):31-49.
[8]Purdy W E,Gaiser P W,Poe G A,et al.Geolocation and pointing accuracy analysis for the Wind Sat sensor[J].IEEETrans Geosci Remote Sens,2006,44(3):496-505.
[9]Guan M,Yang Z.Geolocation method for FY-3 MWRI’s remote sensing image[J].J Remote Sens,2009,13(3):463-474.
[10]Hoffman L H,Weaver W L,Kibler J F.Calculation and accuracy of ERBE scanner measurement locations[J].NASA Tech Rep N,1987(10):1-34.
[11]Currey J C.Geolocation assessment algorithm for CALIPSO using coastline detection NASA Tech[J].Rep,2002.
[12]Gregorich D T and Aumann H H.“Verification of AIRS boresight accuracy using coastline detection[J].IEEE Trans Geosci Remote Sens.2003,41(2):298-302.
[13]Smith G L,Priestley K J,Hess P C,et al.Validation of geolocation of measurements of the Clouds and the Earth‘s Radiant Energy System scanning radiometers aboard three spacecraft[J].J Atmos Ocean Technol,2009,26(11):2379-2391.
[14]Esplin M,Robinson K,Esplin B,et al.Advanced Technology Microwave Sounder(ATMS)geolocation analysis[J].Proc Annu Meet Amer Meteorol Soc,2012,216:22-26.
[15]Moigne J L,Colerhodes A A,Eastman R D,et al.Image registration for remote sensing:multitemporal and multisensor image registration[J].Image regist Remote sens,2011,(10):1-8.
[16]Wolfe R E,Nishihama M,Fleig A J,et al.Achieving sub-pixel geolocation accuracy in support of MODIS land science[J].Remote Sens Environ,2002,83(1/2):31-49.
[17]Khlopenkov K V,Trishchenko A P,Luo Y.Achieving subpixel georeferencing accuracy in the Canadian AVHRRprocessing system[J].IEEE Trans Geosci Remote Sens,2010,48(4):2150-2161.
[18]Wolfe R E,Lin G,Nishihama M,et al.Suomi NPP VIIRS prelaunch and on-orbit geometric calibration and characterization[J].J Geophys Res Atmos,2013,118(20):11508-11521.