Monostatic sampling methods in limited‐aperture configuration
نویسندگان
چکیده
• Sampling-type methods operated at single- and multiple-frequency are proposed for monostatic imaging in two-dimensional limited-aperture scattering problems. Asymptotic structures of the verified to establish effect measurement range on performance schemes. compared those direct sampling configuration. Various numerical simulations using synthetic data presented validate theoretical results. We present problems two dimensions. The method (DSM) is well known provide a robust, stable, fast scheme inhomogeneities from multistatic measurements even with only one or incident fields. However, practical applications, configuration frequently encountered. A (MSM) was studied full-aperture recent literature. In this paper, we develop MSM derive an asymptotic formula corresponding indicator function. Based formula, then analyze depending directions geometric, material properties inhomogeneities. Furthermore, propose modified multi-frequency that improve performance, especially small anomalies. Numerical analytical
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ژورنال
عنوان ژورنال: Applied Mathematics and Computation
سال: 2022
ISSN: ['1873-5649', '0096-3003']
DOI: https://doi.org/10.1016/j.amc.2022.127170