التفاصيل البيبلوغرافية
| العنوان: |
Performance of the Linear Model Scattering of 2D Full Object with Limited Data |
| المؤلفون: |
Ehsan Akbari Sekehravani, Giovanni Leone, Rocco Pierri |
| المصدر: |
Sensors, Vol 22, Iss 10, p 3868 (2022) |
| بيانات النشر: |
MDPI AG, 2022. |
| سنة النشر: |
2022 |
| المجموعة: |
LCC:Chemical technology |
| مصطلحات موضوعية: |
linear inverse scattering, number of degrees of freedom, point spread function, resolution, aspect-limited excitations, aspect-limited observations, Chemical technology, TP1-1185 |
| الوصف: |
Inverse scattering problems stand at the center of many important imaging applications, such as geophysical explorations, radar imaging, and synthetic-aperture radar (SAR). Several methods have been proposed to solve them when the full data are available, usually providing satisfactory reconstructions. However, it is impossible to acquire the full data in many practical circumstances, such as target detection and ground penetrating radar (GPR); consequently, only limited data are available. Thus, this paper focuses on the mathematical analysis and some numerical simulations to estimate the achievable resolution in reconstructing an object from the knowledge of the scattered far-field when only limited data are available, with multi-view excitations at a single frequency. We focus on 2D full rectangular geometry as the investigation domain (ID). We also examine the number of degrees of freedom (NDF) and evaluate the point spread function (PSF). In particular, the NDF of the considered geometry can be estimated analytically. An approximated closed-form evaluation of the PSF is recalled, discussed, and compared with the exact one. Moreover, receiving, transmission, and angle sensing modes are considered to apply the analysis to more realistic scenarios to highlight the difference between the corresponding NDF and the resulting resolution performances. Finally, interesting numerical applications of the resolution analysis for the localization of a collection of point-like scatterers are presented to illustrate how it matches the expectations. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1424-8220 |
| Relation: |
https://www.mdpi.com/1424-8220/22/10/3868; https://doaj.org/toc/1424-8220 |
| DOI: |
10.3390/s22103868 |
| URL الوصول: |
https://doaj.org/article/4a786333e99e4b0d941206c09bb9cc72 |
| رقم الانضمام: |
edsdoj.4a786333e99e4b0d941206c09bb9cc72 |
| قاعدة البيانات: |
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