The airborne VHF SAR system CARABAS

Author

Gustavsson, A. ; Frölind, P.O. ; Hellsten, H. ; Jonsson, T. ; Larsson, B. ; Stenström, G.

Author_Institution

Nat. Defence Res. Establ., Linkoping, Sweden

fYear

1993

fDate

18-21 Aug 1993

Firstpage

558

Abstract

FOA has designed, built and tested a new airborne synthetic aperture radar system, CARABAS, which operates in the lower part of the VHF-band. This frequency region gives the system a good ability to penetrate vegetation and also to some extent ground. Furthermore, the resolution cell and the smallest scatterers influenced by the frequencies are comparable in size and a reduced speckle level in the final SAR image is obtained. Critical parts in the development have been the antenna, the receiver and the signal processing algorithms. A number of test flights have been carried out during 1992. The first major SAR campaign was conducted in October 1992 at two different test sites and included deployment of different reference targets in parallel with a ground truth programme

Keywords

aircraft instrumentation; electrical engineering computing; geography; image processing; remote sensing by radar; synthetic aperture radar; AD 1992 10; October 1992; airborne VHF SAR system CARABAS; antenna; ground truth programme; receiver; reference targets; resolution cell; signal processing algorithms; smallest scatterers; speckle level; synthetic aperture radar; test flights; vegetation; Frequency; Radar antennas; Radar imaging; Radar scattering; Radar signal processing; Signal processing algorithms; Signal resolution; Speckle; System testing; Vegetation mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International

Conference_Location

Tokyo

Print_ISBN

0-7803-1240-6

Type

conf

DOI

10.1109/IGARSS.1993.322271

Filename

322271