Academic Journal

Accurate and Numerically Stable FDTD Modeling of Human Skin Tissues in THz Band

التفاصيل البيبلوغرافية
العنوان: Accurate and Numerically Stable FDTD Modeling of Human Skin Tissues in THz Band
المؤلفون: Jaesun Park, Jae-Woo Baek, Kyung-Young Jung
المصدر: IEEE Access, Vol 10, Pp 41260-41266 (2022)
بيانات النشر: IEEE, 2022.
سنة النشر: 2022
المجموعة: LCC:Electrical engineering. Electronics. Nuclear engineering
مصطلحات موضوعية: Dispersion model, dispersive media, finite-difference time-domain (FDTD) method, human skin tissues, terahertz (THz), Electrical engineering. Electronics. Nuclear engineering, TK1-9971
الوصف: We propose finite-difference time-domain (FDTD) modeling suitable for healthy skin, basal cell carcinoma, dysplastic pigmentary nevus, and non-dysplastic pigmentary nevus in the frequency range of 0.25 THz to 1.05 THz. Toward this purpose, we utilize the complex-conjugate pole-residue (CCPR) dispersion model, because it is very simple to extract the accurate CCPR coefficients using the powerful vector fitting tool. In the FDTD method, it is of great importance to check the numerical stability conditions. If the coefficients extracted through the vector fitting tool do not satisfy the numerical stability conditions, the particle swarm optimization (PSO) algorithm is employed to obtain the accurate and numerically stable coefficients. Numerical examples are provided to validate our proposed FDTD modeling.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2169-3536
Relation: https://ieeexplore.ieee.org/document/9758742/; https://doaj.org/toc/2169-3536
DOI: 10.1109/ACCESS.2022.3168160
URL الوصول: https://doaj.org/article/06147d89f66c4292b2e0c577e6e596d5
رقم الانضمام: edsdoj.06147d89f66c4292b2e0c577e6e596d5
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:21693536
DOI:10.1109/ACCESS.2022.3168160