Journal of Sensors / 2018 / Article / Fig 7

Research Article

Application of Fractional Differential Calculation in Pretreatment of Saline Soil Hyperspectral Reflectance Data

Figure 7

between salt content and raw spectral reflectance for area B. (a) 0–0.4-order differential. (b) 0.6–1st-order differential. (c) 1.2–1.4-order differential. (d) 1.6–2nd order differential.
(a)
(b)
(c)
(d)

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