The CFS-PML in numerical simulation of ATEM

Xuejiao Zhao; Yanju Ji; Shuo Qiu; Shanshan Guan; Yanqi Wu

doi:10.1117/12.2265965

23 January 2017 The CFS-PML in numerical simulation of ATEM

Xuejiao Zhao, Yanju Ji, Shuo Qiu, Shanshan Guan, Yanqi Wu

Proceedings Volume 10322, Seventh International Conference on Electronics and Information Engineering; 103222F (2017) https://doi.org/10.1117/12.2265965
Event: Seventh International Conference on Electronics and Information Engineering, 2016, Nanjing, China

Abstract

In the simulation of airborne transient electromagnetic method (ATEM) in time-domain, the truncated boundary reflection can bring a big error to the results. The complex frequency shifted perfectly matched layer (CFS-PML) absorbing boundary condition has been proved to have a better absorption of low frequency incident wave and can reduce the late reflection greatly. In this paper, we apply the CFS-PML to three-dimensional numerical simulation of ATEM in time-domain to achieve a high precision .The expression of divergence equation in CFS-PML is confirmed and its explicit iteration format based on the finite difference method and the recursive convolution technique is deduced. Finally, we use the uniformity half space model and the anomalous model to test the validity of this method. Results show that the CFS-PML can reduce the average relative error to 2.87% and increase the accuracy of the anomaly recognition.

Citation Download Citation

Xuejiao Zhao, Yanju Ji, Shuo Qiu, Shanshan Guan, and Yanqi Wu "The CFS-PML in numerical simulation of ATEM", Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103222F (23 January 2017); https://doi.org/10.1117/12.2265965

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