Modeling the long-range wave propagation by a split-step wavelet method

Abstract : A split-step wavelet method for simulating the long-range wave propagation is introduced. It is based on the fast wavelet transform. Compared to the split-step Fourier method, this method improves the computation efficiency while keeping a good accuracy. The propagation is performed iteratively by means of a pre-computed matrix containing the individual propagations of the wavelets. A fast computation method of this matrix is also presented. For the radiowave propagation in the low troposphere, a local image method is proposed to account for an impedance ground. Inhomogeneous atmospheres and irregular grounds are also considered. Finally, numerical tests of long-range propagations are performed to show the accuracy and time efficiency of this method.
Document type :
Journal articles
Complete list of metadatas

Cited literature [41 references]  Display  Hide  Download

https://hal-enac.archives-ouvertes.fr/hal-02346081
Contributor : Rémi Douvenot <>
Submitted on : Tuesday, November 5, 2019 - 9:59:54 AM
Last modification on : Thursday, November 7, 2019 - 5:01:39 PM

File

zhou_douvenot_chabory_jcomp_V_...
Files produced by the author(s)

Identifiers

Collections

Citation

Hang Zhou, Rémi Douvenot, Alexandre Chabory. Modeling the long-range wave propagation by a split-step wavelet method. Journal of Computational Physics, Elsevier, 2019, pp.109042. ⟨10.1016/j.jcp.2019.109042⟩. ⟨hal-02346081⟩

Share

Metrics

Record views

34

Files downloads

12