Comparative Study of Some Population-Based Optimization Algorithms on Inverse Scattering of a Two-Dimensional Perfectly Conducting Cylinder in Dielectric Slab Medium

Chiu, Chien‐Ching; Sun, Chih-Ming; Li, Ching‐Lieh; Huang, Cheng-Yang

doi:10.1109/tgrs.2012.2208756

Cited by 35 publications

(22 citation statements)

References 45 publications

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“…As a matter of fact, for a nontrivial TM (TE) incident field, we have H 0,z = 0 and E 0,t = 0 (E 0,z = 0 and H 0,t = 0) everywhere, and by (25) and (26) lim…”

Section: Considerations On the Forward Scattering Problemmentioning

confidence: 99%

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Electromagnetic Inverse Scattering of Axially Moving Cylindrical Targets

Pastorino

Raffetto

Randazzo

2015

IEEE Trans. Geosci. Remote Sensing

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Electromagnetic inverse scattering techniques are considered to reconstruct the permittivity and the velocity profiles of axially moving cylindrical targets. Two approaches are proposed. One of these is based on a two-step procedure. It is shown that it provides good approximations of the profiles to be reconstructed in a very efficient way, when the peak velocity is small with respect to the speed of light in vacuum. These features are obtained by neglecting the movement in the first step, which is devoted to the reconstruction of the geometric and dielectric properties of the cylindrical targets. The second approach is more classical and is defined as a global optimization problem. It is shown that the two procedures are in some way complementary in the sense that, when the two-step procedure can be applied, it is by far the best, with the general procedure giving large errors; vice versa, the two-step procedure is in trouble when the other one gives good results. In carrying out this analysis, some estimates on the effects of the movement on the scattered field components are deduced in the limit as the peak velocity goes to zero.Index Terms-Bianisotropic media, inverse scattering procedures, moving media, reconstruction of permittivity and velocity profiles, time-harmonic electromagnetic scattering.

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“…As a matter of fact, for a nontrivial TM (TE) incident field, we have H 0,z = 0 and E 0,t = 0 (E 0,z = 0 and H 0,t = 0) everywhere, and by (25) and (26) lim…”

Section: Considerations On the Forward Scattering Problemmentioning

confidence: 99%

“…These quantities can be used to define a cost function indicating how far the trial solution x t is from the true solution x of the inverse scattering problem [13]. This way, in particular, the inverse scattering problem is recast as an optimization problem [13], [25].…”

Section: Different Approaches For the Reconstruction Of The Permimentioning

confidence: 99%

Electromagnetic Inverse Scattering of Axially Moving Cylindrical Targets

Pastorino

Raffetto

Randazzo

2015

IEEE Trans. Geosci. Remote Sensing

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“…The related coefficients of the APSO are set below. The learning coefficients 1 c and 2 c are set to 2.8 and 1.3 [14], respectively. The mutation probability is 0.4.…”

Section: Ru mentioning

confidence: 99%

“…There are many applications such as geophysical prospecting, medical imaging, nondestructive evaluated, determination of underground tunnels and pipelines, etc [1]- [4]. However, it is well known that one major difficulty of inverse scattering is its nonlinearity because it involves the product of two unknowns: the electrical properties of object, and the electric field within the object [5].…”

Section: Introduction (Heading 1)mentioning

confidence: 99%

Microwave imaging of buried dielectric cylinders by asynchronous particle swarm optimization

Tuen

Lee

et al. 2014

2014 International Conference on Intelligent Green Building and Smart Grid (IGBSG)

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This paper presents the studies of time domain inverse scattering for a two dimensional inhomogeneous dielectric cylinder buried in a slab medium by the finite difference time domain (FDTD) method and the asynchronous particle swarm optimization (APSO) method. The APSO is applied to reconstruct permittivity of the two-dimensional inhomogeneous dielectric cylinder. Numerical result shows that APSO is able to yield good reconstructed quality.

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“…[22][23][24] No numerical results have been published on the DDE algorithm for metallic cylinder scatterers hidden behind a homogeneous wall in the time domain, although four population-based optimisation algorithms (including APSO, PSO, DDE and SADDE) have been applied to reconstruct the image of a two-dimensional metallic cylinder buried in a dielectric slab medium. 25 These results are considered only to be indicative and not of general application to optimisation problems in electromagnetics. Moreover, the numerical results 25 presented were for the scatterer buried in the second layer of a three-layer structure.…”

Section: Introductionmentioning

confidence: 99%

The reconstruction of time domain through-wall imaging for a metallic cylinder

Wan

Chen

Sun

et al. 2014

The Imaging Science Journal

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Shape reconstruction from scattered electromagnetic fields is considered for two-dimensional through-wall imaging (TWI). The finite-difference time-domain method is applied to calculate the scattered E fields for forward scattering. Inverse scattering problems are transformed into optimisation problems based on the scattered E fields. A dynamic differential evolution (DDE) stochastic searching algorithm for shape reconstruction of a two-dimensional conducting target hidden behind a homogeneous building wall is demonstrated using simulated backscattered fields. The DDE is a population-based optimisation approach that aims to minimise the objective function between mimic measurements and computer-simulated data. Thus, the shape of a metallic cylinder can be obtained by minimising the objective function. Simulations show that DDE can successfully reconstruct TWI for a metallic cylinder. In addition, the effect of Gaussian noise on the reconstruction is investigated.

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Comparative Study of Some Population-Based Optimization Algorithms on Inverse Scattering of a Two-Dimensional Perfectly Conducting Cylinder in Dielectric Slab Medium

Cited by 35 publications

References 45 publications

Electromagnetic Inverse Scattering of Axially Moving Cylindrical Targets

Electromagnetic Inverse Scattering of Axially Moving Cylindrical Targets

Microwave imaging of buried dielectric cylinders by asynchronous particle swarm optimization

The reconstruction of time domain through-wall imaging for a metallic cylinder

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