DocumentCode :
2803299
Title :
A Novel Algorithm for Baseline Correction of Chemical Signals
Author :
Feng, Xinwei ; Zhu, Zhongliang ; Cong, Peisheng
Author_Institution :
Dept. of Chem., Tongji Univ., Shanghai, China
Volume :
2
fYear :
2009
fDate :
14-16 Aug. 2009
Firstpage :
496
Lastpage :
499
Abstract :
As important as noise problem, baseline drift is another part for de-noising the signals acquired by contemporary measurement, especially in the field of chemical signals processing. A novel algorithm named Iterative Suppression Polynomial Fitting algorithm (ISPF) based on modified polynomial fitting method was proposed in this work, which could eliminate the baseline automatically compared to former mathematical methods. The principle of ISPF is intelligible. Raman spectra signal was selected as the investigated subject of experimental section. The drift baseline which is caused by fluorescence blocked up further analysis. After processing with ISPF algorithm, baseline drifts were subtracted from the original Raman spectra signals, rice grains from different places were clearly classified by Principal Component Analysis (PCA). The results proved the efficiency of ISPF algorithm, which could be extended to other field for signal de-noising.
Keywords :
Raman spectra; chemistry computing; iterative methods; polynomials; principal component analysis; signal denoising; ISPF algorithm; Raman spectra signal; baseline correction algorithm; baseline drift; chemical signal processing; chemical signals; iterative suppression polynomial fitting algorithm; mathematical methods; modified polynomial fitting method; noise problem; principal component analysis; signal denoising; Chemical processes; Fitting; Iterative algorithms; Iterative methods; Noise measurement; Noise reduction; Polynomials; Principal component analysis; Signal processing; Signal processing algorithms; ISPF; PCA; Raman spectra; signal de-noising;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Natural Computation, 2009. ICNC '09. Fifth International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-0-7695-3736-8
Type :
conf
DOI :
10.1109/ICNC.2009.93
Filename :
5362552
Link To Document :
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