A new 2-D image reconstruction algorithm based on FDTD and design sensitivity analysis

No Weon Kang; Young Seek Chung; Changyul Cheon; Hyun Kyo Jung

A new 2-D image reconstruction algorithm based on FDTD and design sensitivity analysis

No Weon Kang, Young Seek Chung, Changyul Cheon, Hyun Kyo Jung

School of Electrical and Computer Engineering

Seoul National University

Research output: Contribution to journal › Conference article › peer-review

Abstract

In this paper, we propose a numerical algorithm to reconstruct the complex permittivity profile of unknown scatterers by using the FDTD technique and the design sensitivity analysis (DSA). By introducing the DSA and the adjoint variable method, we can calculate the derivatives of error function with respect to complex permittivity variables, and reduce the computational costs. Proposed method is validated by applying to the reconstruction of unknown 2-D scatterers which are illuminated by TM² with a gaussian pulsed plane wave.

Original language	English
Pages (from-to)	1143-1146
Number of pages	4
Journal	IEEE MTT-S International Microwave Symposium Digest
Volume	2
State	Published - 2002
Event	IEEE MSS-S International Microwave Symposium Digest - Seattle, WA, United States Duration: 2 Jun 2002 → 7 Jun 2002

Cite this

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title = "A new 2-D image reconstruction algorithm based on FDTD and design sensitivity analysis",

abstract = "In this paper, we propose a numerical algorithm to reconstruct the complex permittivity profile of unknown scatterers by using the FDTD technique and the design sensitivity analysis (DSA). By introducing the DSA and the adjoint variable method, we can calculate the derivatives of error function with respect to complex permittivity variables, and reduce the computational costs. Proposed method is validated by applying to the reconstruction of unknown 2-D scatterers which are illuminated by TM2 with a gaussian pulsed plane wave.",

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AU - Kang, No Weon

AU - Chung, Young Seek

AU - Cheon, Changyul

AU - Jung, Hyun Kyo

PY - 2002

Y1 - 2002

N2 - In this paper, we propose a numerical algorithm to reconstruct the complex permittivity profile of unknown scatterers by using the FDTD technique and the design sensitivity analysis (DSA). By introducing the DSA and the adjoint variable method, we can calculate the derivatives of error function with respect to complex permittivity variables, and reduce the computational costs. Proposed method is validated by applying to the reconstruction of unknown 2-D scatterers which are illuminated by TM2 with a gaussian pulsed plane wave.

AB - In this paper, we propose a numerical algorithm to reconstruct the complex permittivity profile of unknown scatterers by using the FDTD technique and the design sensitivity analysis (DSA). By introducing the DSA and the adjoint variable method, we can calculate the derivatives of error function with respect to complex permittivity variables, and reduce the computational costs. Proposed method is validated by applying to the reconstruction of unknown 2-D scatterers which are illuminated by TM2 with a gaussian pulsed plane wave.

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M3 - Conference article

AN - SCOPUS:0036066987

SN - 0149-645X

VL - 2

SP - 1143

EP - 1146

JO - IEEE MTT-S International Microwave Symposium Digest

JF - IEEE MTT-S International Microwave Symposium Digest

T2 - IEEE MSS-S International Microwave Symposium Digest

Y2 - 2 June 2002 through 7 June 2002

ER -

A new 2-D image reconstruction algorithm based on FDTD and design sensitivity analysis

Abstract

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