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Annals of Geophysics
The definition of noise models suitable for hyperspectral data is slightly different depending on whether whiskbroom or push-broom are dealt with. Focussing on the latter type (e.g., VIRS-200) the noise is intrinsically non-stationary in the raw digital counts. After calibration, i.e. removing the variability effects due to different gains and offsets of detectors, the noise will exhibit stationary statistics, at least spatially. Hence, separable 3D processes correlated across track (x), alongdoi:10.4401/ag-3141 doaj:9b09d9702e3b41228f5b2c6501c8fcc9 fatcat:aqravvol4bh3bepevsoce4m3pq