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Images, Arra ys, and Matrices
There are many Earth observation satellite-based sensors, both active and
passive, currently in orbit or planned for the near future. Representative of
these, we describe briefly the multispectral ASTER system (Abrams et al.,
1999) and the TerraSAR-X synthetic aperture radar satellite (Pitz and Miller,
2010). See Jensen (2005), Richards and Jia (2006) and Mather and Koch
(2010) for overviews of remote sensing satellite platforms.
The Advanced Spaceborne Thermal Emission and Reflectance Radiometer
(ASTER) instrument was launched in December 1999 on the Terra space-
craft. It is being used to obtain detailed maps of land