Abstract
THIS article suggests that Walsh functions1–3 might be used in transform Spectroscopy4–6 to replace the sinusoidal functions appearing in the Fourier transform. We think this might be the case because Walsh functions are a complete orthonormal set, and therefore give rise to an integral transform of Fourier type; and they take only the values + 1 and − 1 and are therefore likely to be well suited to the binary digital computer.
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GIBBS, J., GEBBIE, H. Application of Walsh Functions to Transform Spectroscopy. Nature 224, 1012–1013 (1969). https://doi.org/10.1038/2241012a0
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DOI: https://doi.org/10.1038/2241012a0
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