Method for removing abnormal spectrum in actual measurement spectrum curve based on support vector machine model
A technology of support vector machine and spectral curve, which is applied in the field of eliminating abnormal spectra by setting thresholds based on the principle of support vector machine classification method. The effect of accuracy, avoidance of subjectivity, and strong generalization ability
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] Such as figure 1 As shown, a method for removing abnormal spectra in the measured spectral curve based on the support vector machine model includes the following steps:
[0022] Step S1, preprocessing
[0023] Obtain the measured spectral data and preprocess it, including three steps:
[0024] 11) Remove the band affected by water vapor, 12) Use polynomial smoothing filter to filter out the high-frequency noise in the original spectrum, 13) Remove the envelope, after the envelope is removed, the reflectance is normalized to between 0-1, the spectral Absorption and reflection features are reflected on a consistent spectral background, effectively highlighting the absorption, reflection and emission features of the spectral curve.
[0025] The purpose of spectral data preprocessing is to remove noise interference, enhance waveform features, and ...
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