Synthetic aperture radar (SAR) compensating for ionospheric distortion based upon measurement of the Faraday rotation, and associated methods
US6914553B1 · kind B1 · utility
19Cited by
14References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Nov 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/90
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A synthetic aperture radar (SAR) for a moveable platform includes an antenna, a radar transmitter and radar receiver cooperating with the antenna. A radar processor is connected to the radar transmitter and radar receiver to account for the Faraday rotation introduced by propagation through the ionosphere by estimating an individual ionospheric distortion for each received echo pulse based upon a measured Faraday rotation, and reducing the ionospheric distortion for each received echo pulse based upon the estimated individual ionospheric distortion associated therewith for providing a compensated echo pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.