An Improved FFT Discrete Spectrum Correction and Weighted Alogrithm

Yan Dai; Zhang Yin Pu; Huan Wang

doi:10.4028/www.scientific.net/AMR.433-440.3718

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 433-440An Improved FFT Discrete Spectrum Correction and...

An Improved FFT Discrete Spectrum Correction and Weighted Alogrithm

Abstract:

For the problem of spectrum correction in phase difference method, a weighed correction method starting from phase difference of secondary largest value is presented in this paper. By the analysis on correction error of maximum and the second largest value in phase difference method, It determines the maximum correction error and the second largest value and conducts error correction method of weighted joint calibration. In addition, it makes analysis on variance for correction result. Finally, the experimental result shows that the method can greatly improve spectral resolution than conventional phase difference method.

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Periodical:

Advanced Materials Research (Volumes 433-440)

Pages:

3718-3723

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.433-440.3718

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Online since:

January 2012

Authors:

Yan Dai, Zhang Yin Pu, Huan Wang

Keywords:

Correction Error, FFT, Secondary Largest Value

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References

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