The TRWIS III airborne hyperspectral imaging system

The TRW Imaging Spectrometer m (TRWIS III) airborne hyperspectral imager is a pushbroom sensor that collects imagery in 384 contiguous spectral channels covering the 400 nm to 2450 nm wavelength range. The instrument was completed in 1996 and underwent its first flight season in the second half of that year. Since then, TRWIS m has been used to gather data for applications including remote classification of desert vegetation, forest species, and man-made materials. Along with in-flight operational demonstrations, the instrument has undergone laboratory performance validation and radiometric calibration. This paper will describe the TRWIS m instrument and its current applications to remote sensing.