Radar Interferometry : A New Tool for Accurate Height Modelling
article
Compared to optical sensors the use of radar for Earth observation has only just begun. The first use
of radar for this purpose was reported in the sixties. The most important reason to use radar
instead of optical sensors is its capability to penetrate through clouds and its day and night
imaging capabilities. However, radar interferometry might add yet another reason to use radar.
Recenfly it has been shown, that with spaceborne Synthetic Aperture Radar, deformations of
the surface of the Earth can be measured with sub-centimetre accuracy. This information
becomes available by using interferometric processing techniques of multiple satellite
images from the satellite. In this article the basics of the technique and its potential as well as the
limitations are outlined.
of radar for this purpose was reported in the sixties. The most important reason to use radar
instead of optical sensors is its capability to penetrate through clouds and its day and night
imaging capabilities. However, radar interferometry might add yet another reason to use radar.
Recenfly it has been shown, that with spaceborne Synthetic Aperture Radar, deformations of
the surface of the Earth can be measured with sub-centimetre accuracy. This information
becomes available by using interferometric processing techniques of multiple satellite
images from the satellite. In this article the basics of the technique and its potential as well as the
limitations are outlined.
TNO Identifier
94847
Source
GIM International Journal for Geomatics, 10(1), pp. 27-31.
Pages
27-31
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