Some problems of realization spaceborne SAR in P, UHF, VHF bands

Some problems of realization spaceborne SAR in P, UHF, VHF bands

Assessment of wavelengths in range from 70 cm up to 3 m is one of actual directions in space-based SAR development. However, the low-frequency systems have serious difficulties with producing a spatial resolution about few meters. The resolution of a low-frequency SAR is affected by: a) the SAR hard...

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Bibliographische Detailangaben
Hauptverfasser: Goriachkin, O.V., Klovsky, D.D.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Backscatter
Fluctuations
Hardware
Ionosphere
Kernel
Radar imaging
Signal resolution
Spaceborne radar
Synthetic aperture radar
Terrestrial atmosphere
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Zusammenfassung:Assessment of wavelengths in range from 70 cm up to 3 m is one of actual directions in space-based SAR development. However, the low-frequency systems have serious difficulties with producing a spatial resolution about few meters. The resolution of a low-frequency SAR is affected by: a) the SAR hardware channel non-linearity; b) distribution of troposphere and ionosphere refraction factor; c) fluctuations of atmosphere refraction factor. This article discusses these theoretical problems.
DOI:10.1109/IGARSS.1999.774601