MOMS-02/D2: Design of panchromatic bands
Panchromatic bands are used for three-line stereo data acquisition (high resolution nadir (band 5) and for/aft (bands 6, 7) modules). To design the filter for a panchromatic band, one has to take into account the contrast in apparent albedo of vegetation and rock/soils within a range, covering the VIS and NIR wavebands. These are dominated by the steep increase of reflectance of vegetation canopies at the red edge at around 700nm. Therefore, is was decided to optimize the band-passes in extending the right edge into the longer wavelength. This was to avoid most of the noise and low-pass characteristics introduced by atmospheric scattering at shorter wavelengths and to display vegetation in sufficient brightness in internal contrast and to bare soils.
Advantages result for:
- Data fusion concepts
- Automatic data correlation (geometry)
- Pattern recognition for vegetation targets