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

<div>Changes in <svg height="9.01194pt" id="M103" style="vertical-align:-0.2455397pt" version="1.1" viewbox="-0.0498162 -8.7664 17.5458 9.01194" width="17.5458pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z" id="g121-65"></path></g><g transform="matrix(.013,0,0,-0.013,8.736,0)"><path d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z" id="g121-65"></path></g></svg> for area A. (a) 682 nm. (b) 689 nm.</div>

Journal of Sensors

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Figure 9

Figure 9: Application of Fractional Differential Calculation in Pretreatment of Saline Soil Hyperspectral Reflectance Data 