Research output: Contribution to journal › Article › peer-review
Accelerated Algorithm for Solving the Direct Scattering Problem for the Wave Equation. / Frumin, L. L.; Chernyavsky, A. E.
In: Optoelectronics, Instrumentation and Data Processing, Vol. 61, No. 6, 12.2025, p. 737-743.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Accelerated Algorithm for Solving the Direct Scattering Problem for the Wave Equation
AU - Frumin, L. L.
AU - Chernyavsky, A. E.
N1 - Frumin, L.L., Chernyavsky, A.E. Accelerated Algorithm for Solving the Direct Scattering Problem for the Wave Equation. Optoelectron.Instrument.Proc. 61, 737–743 (2025). This work was supported by the Russian Science Foundation, project no. 24-22-00183.
PY - 2025/12
Y1 - 2025/12
N2 - Direct scattering problem for the one-dimensional Helmholtz equation is numerically solved. The transfer matrix method and the integral method are used to obtain a second-order accurate implicit difference scheme for the transfer matrix. A duplication strategy, a convolution theorem, and a fast Fourier transform are used to develop an algorithm for accelerated solution of the Helmholtz equation, asymptotically requiring only arithmetic operations. The scattering problem is numerically solved using the example of an exponential smooth layer, the solution to which is known. The numerical simulation confirmed that the proposed algorithm is accurate and fast, which is necessary in practical applications for optical and acoustic sensing of media in applied optics and acoustics.
AB - Direct scattering problem for the one-dimensional Helmholtz equation is numerically solved. The transfer matrix method and the integral method are used to obtain a second-order accurate implicit difference scheme for the transfer matrix. A duplication strategy, a convolution theorem, and a fast Fourier transform are used to develop an algorithm for accelerated solution of the Helmholtz equation, asymptotically requiring only arithmetic operations. The scattering problem is numerically solved using the example of an exponential smooth layer, the solution to which is known. The numerical simulation confirmed that the proposed algorithm is accurate and fast, which is necessary in practical applications for optical and acoustic sensing of media in applied optics and acoustics.
KW - Helmholtz equation
KW - direct scattering problem
KW - implicit scheme
KW - transfer matrix
UR - https://www.scopus.com/pages/publications/105035421368
UR - https://www.mendeley.com/catalogue/1b5f68b3-c5f2-366e-8409-6ae55c1e5ff5/
U2 - 10.3103/S8756699025700840
DO - 10.3103/S8756699025700840
M3 - Article
VL - 61
SP - 737
EP - 743
JO - Optoelectronics, Instrumentation and Data Processing
JF - Optoelectronics, Instrumentation and Data Processing
SN - 8756-6990
IS - 6
ER -
ID: 76038410