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Fourier transform of large scale aeromagnetic field using a modified version of fast Fourier transform

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Summary

Cooley andTukey's fast Fourier transform algorithm for two dimensional complex data has been modified so as to reduce the storage space and computation time to half. The modified version has enabled us to Fourier transform aeromagnetic field over twice the area that could be covered by the original method. From the Fourier transform we computed radial spectrum, which could be approximated by three straight line segments whose slopes are related to the depths of the various magnetic layers. The computed depths are: 1090', 2600', and 7200'.

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References

  1. G. D. Bergland,A fast Fourier transform algorithm for real valued series, Comm. of the ACM11 (1968), 703–710.

    Google Scholar 

  2. J. W. Cooley andJ. W. Tukey,An algorithm for machine calculation of complex Fourier series, Math. Comput.19 (1965), 297–301.

    Google Scholar 

  3. J. W. Cooley, A. W. Lewis andP. D. Welch,Historical notes on the fast Fourier transform, Proc. of the IEEE,55 (1967), 1675–1677.

    Google Scholar 

  4. D. F. Hewitt,Geology and mineral deposits of the Parry Sound-Huntsville area, Ontario Department of Mines, Geol. Report52 (1967).

  5. D. W. McCowan,Finite Fourier transform theory and its application to the computation of convolutions, correlations, and spectra, Tech. Memo. No. 8-66, Earth Sciences Division, Teledyne Industries, Inc. Alexandria (1966).

    Google Scholar 

  6. P. Naidu,Spectrum of the potential field due to randomly distributed sources, Geophysics33 (1968), 337–345.

    Google Scholar 

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Author notes

  1. Prabhakar S. Naidu

    Present address: Department of electrical communication Engincering, Indian Institute of Science, Bangalore-12, India

Authors and Affiliations

  1. Department of Physics, Dalhousie University, Halifax, Nova Scotia, Canada

    Prabhakar S. Naidu

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  1. Prabhakar S. Naidu
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Naidu, P.S. Fourier transform of large scale aeromagnetic field using a modified version of fast Fourier transform. PAGEOPH 81, 17–25 (1970). https://doi.org/10.1007/BF00875007

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  • DOI: https://doi.org/10.1007/BF00875007

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