Data Extrapolation Based CLEAN Algorithm for One Dimensional Scattering Center Extraction

Erer, İşın; Gultekin,; Gunel,

doi:10.1109/siu.2006.1659774

Cited by 1 publication

(2 citation statements)

References 8 publications

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“…4 in red dots and yellow stars, respectively. The scattering fields of the LSCs are computed by the currents near the vertex and interaction points [9], as shown in Fig. 5.…”

Section: Lscmentioning

confidence: 99%

“…The existing methods for parameter extraction include forward methods and inverse methods. In forward methods, the scattering contribution of each SC is obtained by electromagnetic calculations, such as the method of using high-frequency methods [8] and another that utilizes equivalent currents computed by the full-wave method [9]. In inverse methods, the SC parameters are mainly extracted from the scattering fields of the target or the imaging results by parameter estimation, such as the CLEAN method [10], maximum likelihood estimation [11], support vector machine [12], genetic algorithm (GA) and particle swarm optimization (PSO) [13−15].…”

Section: Introductionmentioning

confidence: 99%

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Scattering center modeling for low-detectable targets

Chen

Guo

Xiao

et al. 2022

J. of Syst. Eng. Electron.

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The scattering centers (SCs) of low-detectable targets (LDTs) have a low scattering intensity. It is difficult to build the SC model of an LDT using the existing methods because these methods mainly concern dominant SCs with strong scattering contributions. This paper presents an SC modeling approach to acquire the weak SCs of LDTs. We employ the induced currents at the LDT to search SCs, and the joint time-frequency transform together with the Hough transform to separate the scattering contributions of different SCs. Particle swarm optimization (PSO) is applied to improve the estimation results of SCs. The accuracy of the SC model built by this approach is verified by a full-wave numerical method. The validation results show that the SC model of the LDT can precisely simulate the signatures of highresolution images, such as high-resolution range profile and inverse synthetic aperture radar (ISAR) images.

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“…4 in red dots and yellow stars, respectively. The scattering fields of the LSCs are computed by the currents near the vertex and interaction points [9], as shown in Fig. 5.…”

Section: Lscmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%