Name
Abstract | ||
|---|---|---|
Geolocation errors in excess of 20-30 km have been observed in the special sensor microwave imager/sounder (F-16 SSMIS) radiometer observations when compared with accurate global shoreline databases. Potential error sources include angular misalignment of the sensor spin axis with the spacecraft zenith, sample timing offsets, nonuniform spin rate, antenna deployment offsets, spacecraft ephemeris, and approximations of the geolocation algorithm in the Ground Data Processing Software. An analysis methodology is presented to automate the process of quantifying the geolocation errors rapidly in terms of partial derivatives of the radiometer data in the along-scan and along-track directions and is applied to the SSMIS data. Angular and time offsets are derived for SSMIS that reveal the root cause(s) of the geolocation errors, while yet unresolved, are systematic, correctable in the ground processing software, and may be reduced to less than 4-5 km (1-sigma). |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/TGRS.2008.917981 | Geoscience and Remote Sensing, IEEE Transactions |
Keywords | Field | DocType |
error analysis,geophysical signal processing,geophysical techniques,microwave imaging,microwave measurement,radiometry,remote sensing,F-16 SSMIS radiometer observation,Ground Data Processing Software,Special Sensor Microwave Imager/Sounder,along-scan direction,along-track direction,angular misalignment,antenna deployment offset,geolocation error analysis,global shoreline database,nonuniform spin rate,passive microwave geolocation,potential error source,radiometer data,sample timing offset,sensor spin axis,spacecraft ephemeris,spacecraft zenith,Passive microwavegeolocation, radiometer pointing errors, satellite data registration | Ephemeris,SSMIS,Geolocation,Remote sensing,Microwave imaging,Geology,Special sensor microwave/imager,Geodesy,Spacecraft,Zenith,Radiometer | Journal |
Volume | Issue | ISSN |
46 | 4 | 0196-2892 |
Citations | PageRank | References |
11 | 1.64 | 3 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Gene A. Poe | 1 | 184 | 31.87 |
| Enzo A. Uliana | 2 | 53 | 8.01 |
| Beverly A. Gardiner | 3 | 11 | 1.64 |
| Troy E. vonRentzell | 4 | 11 | 1.64 |
| David B. Kunkee | 5 | 49 | 10.57 |