Abstract
An approach to efficiently model step-frequency continuous-wave (SFCW) ground penetrating radar systems using the finite-difference time-domain (FDTD) method is presented. As a SFCW system utilises a great number of distinct sinusoidal transmissions to build a single A-Scan and the direct application of this approach using FDTD modelling is unrealistic in terms of the needed computational resources and long execution times as a result. Utilising the concept of the FDTD model impulse response an efficient approach is obtained where only one FDTD run needed for each A-Scan as convolution is used to generate the responses from every frequency in a post-processing step. The paper presents the evidence for the successful utilisation of this approach to model an SFCW GPR response using 3D FDTD for the first time. Such a modelling approach will allow the advanced development of processing and interpretation ideas for SFCW GPRs benefiting from the availability of 3D numerical modelling that can follow their paradigm of data collection closely and can be performed in reasonable time and computational resource requirements.
| Original language | English |
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| Title of host publication | NSG2023 29th European Meeting of Environmental and Engineering Geophysics |
| Publisher | European Association of Geoscientists and Engineers, EAGE |
| Number of pages | 5 |
| ISBN (Electronic) | 9789462824607 |
| DOIs | |
| Publication status | Published - Sept 2023 |
| Event | 29th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2023, NSG 2023 - Edinburgh, United Kingdom Duration: 3 Sept 2023 → 7 Sept 2023 |
Conference
| Conference | 29th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2023, NSG 2023 |
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| Country/Territory | United Kingdom |
| City | Edinburgh |
| Period | 3/09/23 → 7/09/23 |