Angular Glint Error Simulation Using Attributed Scattering Center Models

Guo, Kun-Yi; Xiao, Guangliang; Zhai, Yun; Sheng, Xin‐Qing

doi:10.1109/access.2018.2846538

Cited by 7 publications

(6 citation statements)

References 32 publications

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“…The scattering centre distributions of the three types of ballistic targets are summarised in [7] and depicted in Fig. 1.…”

Section: Micro‐motion Model Of the Streamlined Ballistic Targetmentioning

confidence: 99%

“…Micro-motion model of the streamlined ballistic target: The scattering centre distributions of the three types of ballistic targets are summarised in [7] and depicted in The scattering centres of the streamlined ballistic target include SSCS and SSCE as analysed above. The mD characteristics of SSCE for the streamlined ballistic target are consistent with the cone-cylinder and bluntnosed ballistic targets.…”

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confidence: 99%

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Micro‐Doppler characteristics of streamlined ballistic target

et al. 2019

Electron. lett.

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Micro-Doppler (mD) characteristics of the ballistic targets have attracted great attention due to the potential in target discrimination. However, current investigations mainly focus on blunt-nosed cone and cone-cylinder-shaped targets. In practical applications, ballistic targets are always designed as the streamlined shape due to smaller aerodynamic resistance and lower detectability. In this Letter, the mD characteristics of streamlined ballistic targets are analysed. Owing to the unique mD signatures, the sliding scattering centre induced by the reflection from the streamlined curved surface is particularly focused. Finally, simulation results via the electromagnetic computation verify the correctness of the analysis.

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“…The scattering centre distributions of the three types of ballistic targets are summarised in [7] and depicted in Fig. 1.…”

Section: Micro‐motion Model Of the Streamlined Ballistic Targetmentioning

confidence: 99%

mentioning

confidence: 99%

Micro‐Doppler characteristics of streamlined ballistic target

et al. 2019

Electron. lett.

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“…The accelerated algorithm which is called adaptive cross approximation (ACA) [8] for calculating the performance of angular glint was presented. And by introducing the scattering models [9]- [10], the angular error had been estimated and simulated. The deviation of angular glint could also be calculated in the near field [11]- [12] based on the method of near-field iterative physical optics.…”

Section: Introductionmentioning

confidence: 99%

Fast Estimated Calculation of Wideband Radar Angular Glint Using Single Frequency Method

Wang

Dong

et al. 2020

IEEE Access

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In this paper, we proposed a fast and accurately calculated method to estimate the deviation of wideband angular glint based on single frequency or narrow band modeling method of the angular glint. By analyzing the three existing methods of modeling the target angular glint, we show that such methods are consistent when the geometrical optics approximation and linear polarized receiving antenna are assumed. Considering of the tracking system by wideband monopulse radar, the fast calculated method we present can estimate the angular glint in each resolution unit using modeling method of single frequency which is the center one of the whole bandwidth. The mathematical analysis of the unity between the wideband and narrowband modeling method is demonstrated, and the correctness of the new calculated method is well validated by high-frequency electromagnetic simulations based on the physical optics.

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“…These methods can be classified into two categories, the inverse methods and the forward methods. In inverse methods, scattering centres are extracted from the images of synthetic aperture radar (SAR) or inverse SAR (ISAR) through combining the high‐frequency asymptotic methods and parameter estimation methods [18–20]; in forward methods, the scattered waves of individual scattering centres are obtained directly through ray tracing and clustering [21, 22] or the electromagnetic computation of local currents [23]. These methods are proven to be effective in building the scattering centre models of complex targets.…”

Section: Introductionmentioning

confidence: 99%

Modifications on parametric models for distributed scattering centres on surfaces with arbitrary shapes

Zhao

Guo

Sheng

2019

IET Radar, Sonar & Navigation

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Distributed scattering centre (DSC) is a particular type of scattering centres which has the strongest scattering amplitude among all scattering centres. Furthermore, their distributed signatures in radar images have directly shown geometries of targets. Therefore, DSCs play an important role in target recognition. DSCs are currently described by the attributed scattering centre (ASC) model, which is developed out of the asymptotic expansion solutions to canonical geometries. However, rather than canonical geometries, real radar targets have various geometric structures, which show different signatures in radar images. In order to characterise these various signatures, the parametric model is modified. Scattered fields from planar and single-curved surfaces with arbitrary shapes are studied in this study and motivated by which, the parametric models of DSCs for more general structures are presented. To validate these models, the scattered waves and the post-imaging results simulated by these models are compared with those obtained by a rigorous full-wave numerical method, and those obtained by the conventional ASC model. The comparison results demonstrate these models have a higher accuracy over the conventional model in simulations of scattered waves, as well as inverse synthetic aperture radar image signatures of different geometric structures.

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Angular Glint Error Simulation Using Attributed Scattering Center Models

Cited by 7 publications

References 32 publications

Micro‐Doppler characteristics of streamlined ballistic target

Micro‐Doppler characteristics of streamlined ballistic target

Fast Estimated Calculation of Wideband Radar Angular Glint Using Single Frequency Method

Modifications on parametric models for distributed scattering centres on surfaces with arbitrary shapes

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