Abstract:The near infrared (NIR) spectrum of fish oil is often very weak, and part of the peaks are submerged in the noise and are difficult to distinguish especially when NIR spectrum is applied to component analysis. A new method is proposed to get the pretreatment of NIR spectrum, which combines empirical mode decomposition (EMD) with independent component analysis (ICA). The principle and steps of method are given and its de-noising effect is evaluated by some parameters. With experiment, it is indicated that the d… Show more
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