Concept
Synthetic Aperture Radar X-band
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1088/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | SAR-X | ||
| Definition | SAR is an active system that transmits a beam of radiation in the microwave region of the electromagnetic spectrum in order to create images of a targeted object. Its application in remote sensing allows the mapping of the Earth's surface. An antenna sends successive pulses of radio waves to a target scene, and receives and records the echo of each pulse. AS the satellites moves along track, the antenna records successive target scenes thus forming the 'synthetic antenna aperture'. Signal processing of the recorded scenes allows the creation of higher resolution images. Data collection is independent of light and heat, and is therefore possible day and night, under any weather condition. TerraSAR-X operates in three alternate operating modes: SpotLight, giving 1 m resolution for a surface area of 5 km by 10 km; StripMap, giving 3 m resolution for a surface area of 30 km by 50 km; and ScanSAR giving 16 m resolution for a surface area of 100 km by 150 km. X-Band SAR has a phased array antenna of 31 mm wavelength and 9.6 GHz frequency; this antenna allows single, dual or full polarimetric data takes. Flown on TerraSAR-X. http://www.wmo-sat.info/oscar/instruments/view/459 | ||
| Date | 2016-11-15T15:28:05 | ||
| Identifier | SDN:L22::TOOL1088 | ||
| Note | accepted | ||
| Is Version Of | TOOL1088 | ||
| version | 1 | ||
| Broader | L05:306 |
synthetic aperture radars | |
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