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- W4384112445 abstract "It has been demonstrated that the MUltiple SIgnal Classification (MUSIC) algorithm is fast, stable, and effective for localizing small anomalies in microwave imaging. For the successful application of MUSIC, exact values of permittivity, conductivity, and permeability of the background must be known. If one of these values is unknown, it will fail to identify the location of an anomaly. However, to the best of our knowledge, no explanation of this failure has been provided yet. In this paper, we consider the application of MUSIC to the localization of a small anomaly from scattering parameter data when complete information of the background is not available. Thanks to the framework of the integral equation formulation for the scattering parameter data, an analytical expression of the MUSIC-type imaging function in terms of the infinite series of Bessel functions of integer order is derived. Based on the theoretical result, we confirm that the identification of a small anomaly is significantly affected by the applied values of permittivity and conductivity. However, fortunately, it is possible to recognize the anomaly if the applied value of conductivity is small. Simulation results with synthetic data are reported to demonstrate the theoretical result." @default.
- W4384112445 created "2023-07-13" @default.
- W4384112445 creator A5064579474 @default.
- W4384112445 date "2023-07-03" @default.
- W4384112445 modified "2023-09-24" @default.
- W4384112445 title "Application of MUSIC-type imaging for anomaly detection without background information" @default.
- W4384112445 doi "https://doi.org/10.48550/arxiv.2307.05331" @default.
- W4384112445 hasPublicationYear "2023" @default.
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