Journal ArticleDOI
Digital data handling of spectra utilizing Fourier transformations
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This article is published in Analytical Chemistry.The article was published on 1972-05-01. It has received 149 citations till now. The article focuses on the topics: Harmonic wavelet transform & Fourier transform.read more
Citations
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The Scope and Limitations of Curve Fitting
TL;DR: In this paper, a review of the various factors involved in curve fitting of vibrational band systems is presented, with particular reference to vibrational bands, and other types of overlapping band systems encountered in analytical work are considered in less detail.
Journal ArticleDOI
Application hints for Savitzky-Golay digital smoothing filters
Journal ArticleDOI
Determination of physiological levels of glucose in an aqueous matrix with digitally filtered Fourier transform near-infrared spectra.
Mark A. Arnold,Gary W. Small +1 more
TL;DR: A novel spectral processing scheme is described for extracting glucose concentration information from the resulting absorbance spectra using a digital Fourier filter that removes both high-frequency noise and low-frequency base-line variations from the spectra.
Journal ArticleDOI
The Kalman filter in analytical chemistry
TL;DR: A comprehensive survey of the application of Kalman filtering to chemical problems is provided in this article, with a focus on the discrete Kalman algorithm and its application in analytical chemistry. But, as discussed in this paper, it is based on the Kalman filter, a recursive, linear digital filter originally developed for use in navigation, but now used in many fields.
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Strategies for coupling digital filtering with partial least-squares regression: Application to the determination of glucose in plasma by Fourier-transform near-infrared spectroscopy
TL;DR: It is determined that the use of digital filtering as a preprocessing step significantly improves the performance of the resulting calibration models, minimizes the importance of spectral range in the calibration model development, and reduces the required number of PLS factors in each model.
References
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Journal ArticleDOI
Smoothing and Differentiation of Data by Simplified Least Squares Procedures.
Journal ArticleDOI
An introduction to matched filters
TL;DR: In a tutorial exposition, the following topics are discussed: definition of a matched filter; where matched filters arise; properties of matched filters; matched-filter synthesis and signal specification; some forms of matched filter.
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The shapes and intensities of infrared absorption bands—A review
K. S. Seshadri,R. Norman Jones +1 more
TL;DR: The experimental and theoretical factors influencing the measurement of the profiles and intensities of infrared absorption bands for materials in condensed states are reviewed in this paper, where the effects of the spectral slit function and the time constants of the spectrophotometer recording system on the band shape are discussed, and the methods available for the experimental evaluation of these quantities are described.
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Aerial Smoothing in Radio Astronomy
Ronald N. Bracewell,JA Roberts +1 more
TL;DR: In this article, it was shown that the aerial does not register those spatial Fourier components of the true distribution having frequencies beyond a cut-off determined by the aerial aperture, and the relative strengths of lower frequency components are altered.