Scattering center modeling for low-detectable targets

Yanxi Chen; Kunyi Guo; Guangliang Xiao; Xinqing Sheng

doi:10.23919/JSEE.2022.000051

Scattering center modeling for low-detectable targets

Yanxi Chen, Kunyi Guo^*, Guangliang Xiao, Xinqing Sheng

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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 high-resolution images, such as high-resolution range profile and inverse synthetic aperture radar (ISAR) images.

Original language	English
Pages (from-to)	511-521
Number of pages	11
Journal	Journal of Systems Engineering and Electronics
Volume	33
Issue number	3
DOIs	https://doi.org/10.23919/JSEE.2022.000051
Publication status	Published - 1 Jun 2022

Keywords

full-wave method
low-detectable target (LDT)
scattering center (SC) model
stealth target
time-frequency representation

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10.23919/JSEE.2022.000051

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title = "Scattering center modeling for low-detectable targets",

abstract = "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 high-resolution images, such as high-resolution range profile and inverse synthetic aperture radar (ISAR) images.",

keywords = "full-wave method, low-detectable target (LDT), scattering center (SC) model, stealth target, time-frequency representation",

author = "Yanxi Chen and Kunyi Guo and Guangliang Xiao and Xinqing Sheng",

note = "Publisher Copyright: {\textcopyright} 1990-2011 Beijing Institute of Aerospace Information.",

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doi = "10.23919/JSEE.2022.000051",

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T1 - Scattering center modeling for low-detectable targets

AU - Chen, Yanxi

AU - Guo, Kunyi

AU - Xiao, Guangliang

AU - Sheng, Xinqing

PY - 2022/6/1

Y1 - 2022/6/1

N2 - 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 high-resolution images, such as high-resolution range profile and inverse synthetic aperture radar (ISAR) images.

AB - 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 high-resolution images, such as high-resolution range profile and inverse synthetic aperture radar (ISAR) images.

KW - full-wave method

KW - low-detectable target (LDT)

KW - scattering center (SC) model

KW - stealth target

KW - time-frequency representation

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Scattering center modeling for low-detectable targets

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Keywords

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