Conference proceeding
Parametric Approach on Field Propagation
Proceedings of the Fifteenth International Symposium, pp 183-191
1987
Abstract
Conventional Fourier transform method of angular spectrum propagation to estimate field distribution at planes distant from the measuring plane has several problems. These are wrap-around arror, replicated sources problem and side-lobe leakage effects due to windowing the data. These effects are inevitable as far as the discrete Fourier transform is concerned. One suggestion to eliminate these effects is to apply a parametric modelling approach to estimate the Fourier transform pair.
We have found that the auto-regressive (AR) modelling approach has better resolution than the Fourier transform method when used to estimate source field distributions. The modelling method produces even better results when it is applied to the new Fresnel integral to get a direct spatial source property distribution, rather than using the angular spectrum propagation approach.
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Details
- Title
- Parametric Approach on Field Propagation
- Creators
- Sun I. Kim - Drexel UniversityJohn M. Reid - Drexel University
- Publication Details
- Proceedings of the Fifteenth International Symposium, pp 183-191
- Conference
- Proceedings of the Fifteenth International Symposium, 15th (July 14–6, 1986, 14 Jul 1986–16 Jul 1986)
- Series
- Acoustical Imaging
- Publisher
- Springer US; Boston, MA
- Number of pages
- 9
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Scopus ID
- 2-s2.0-0023593333
- Other Identifier
- 991019350662704721