Frequency domain deconvolution Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/rf55zb895

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  • Frequency domain design of deconvolution filters is studied using Fast Fourier Transform. Filters for both the spike and the Gaussian reflector wavelet are obtained. True deconvolution filters are infinitely long IIR filters, and frequency domain analysis is an effective way of finding its optimum finite length approximation for an arbitary given filter length. The Gaussian waveform and its Discrete Fourier Transform has several desirable characteristics that make it a good choice as a reflector wavelet. Basic wavelets with zeros on the unit circle results in spike inverse filters that are quasistable and infinitely long. By circularly shifting the Gaussian FFT sequence it is possible, depending on the location of the zeros, to find Gaussian inverse filters that are much shorter than the corresponding spike inverse filters.
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  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-07-30T18:28:48Z (GMT) No. of bitstreams: 1 TanHinL1984.pdf: 1789828 bytes, checksum: 4a7bea017802d159092f34b9b7699219 (MD5)
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  • description.provenance : Made available in DSpace on 2013-07-31T21:38:06Z (GMT). No. of bitstreams: 1 TanHinL1984.pdf: 1789828 bytes, checksum: 4a7bea017802d159092f34b9b7699219 (MD5) Previous issue date: 1984-01-17
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-07-31T21:38:06Z (GMT) No. of bitstreams: 1 TanHinL1984.pdf: 1789828 bytes, checksum: 4a7bea017802d159092f34b9b7699219 (MD5)

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