Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

Application of Walsh Functions to Transform Spectroscopy

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.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Walsh, J. L., Amer. J. Math., 55, 8 (1923).

    Google Scholar 

  2. Fine, N. J., Walsh Functions, Encyclopaedic Dictionary of Physics (Pergamon Press, Oxford, to be published).

  3. Harmuth, H. F., Transmission of Information by Orthogonal Functions (Springer, Berlin, 1969).

    Book  Google Scholar 

  4. Connes, J., Rev. Opt., 40, 45, 116, 171, 231 (1961).

    Google Scholar 

  5. Gebbie, H. A., Advances in Quantum Electronics (edit. by Singer, J. R.), 155 (Columbia Univ. Press, 1961).

    Google Scholar 

  6. Gebbie, H. A., and Twiss, R. Q., Rep. Phys. Soc. Prog. Phys., 29, Pt. II, 729 (1966).

    Article  ADS  CAS  Google Scholar 

  7. Gentleman, W. M., and Sande, G., Proc. Fall Joint Computer Conf., 563 (1966).

  8. Cooley, J. W., and Tukey, J. W., Math. Comput., 19, 297 (1965).

    Article  Google Scholar 

  9. Bogert, B. P., et al., IEEE Trans., AU-15, 43 (1967).

    Google Scholar 

  10. Polyak, B. T., and Schreider, Yu. A., Voprosy Teor. Matem. Mashin, 174 (1962).

  11. Ito, T., Information and Control, 12, 206 (1968).

    Article  MathSciNet  Google Scholar 

  12. Meltzer, B., Searle, N. H., and Brown, R., Nature, 216, 32 (1967).

    Article  ADS  CAS  Google Scholar 

  13. Pratt, W. K., Kane, J., and Andrews, H. C., Proc. IEEE, 57, 58 (1969).

    Article  Google Scholar 

  14. Weiss, P., Arch. Elek. U., 21, 255 (1967).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

GIBBS, J., GEBBIE, H. Application of Walsh Functions to Transform Spectroscopy. Nature 224, 1012–1013 (1969). https://doi.org/10.1038/2241012a0

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1038/2241012a0

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing