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Titolo:
Frequency interpolation technique for broadband parabolic equation calculations
Autore:
Heaney, KD; Kuperman, WA;
Indirizzi:
Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA Univ Calif San Diego La Jolla CA USA 92093 ys Lab, La Jolla, CA 92093 USA
Titolo Testata:
JOURNAL OF COMPUTATIONAL ACOUSTICS
fascicolo: 1, volume: 7, anno: 1999,
pagine: 27 - 38
SICI:
0218-396X(199903)7:1<27:FITFBP>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
OCEAN; TRANSMISSIONS; PROPAGATION; FIELD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Heaney, KD Sci Applicat Int Corp, Ocean Sci Operat, San Diego, CA 92121 USA Sci Applicat Int Corp San Diego CA USA 92121 ego, CA 92121 USA
Citazione:
K.D. Heaney e W.A. Kuperman, "Frequency interpolation technique for broadband parabolic equation calculations", J COMP ACOU, 7(1), 1999, pp. 27-38

Abstract

A method is developed for increasing the efficiency of broadband parabolicequation modeling. For broadband adiabatic mode calculations, the smoothness of the wavenumbers and mode functions in frequency permits interpolationacross frequency. In order to permit frequency interpolation, the pressurefield computed by the PE is transformed to mode space and the complex modeamplitudes are interpolated across frequency. For mildly range dependent environments a speed increase of a factor of ten can be achieved. A convergence test of propagation through internal waves indicates that a frequency interpolation across four frequencies is possible.

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Documento generato il 24/09/20 alle ore 23:25:00