Attitude and Size Estimation of Satellite Targets Based on ISAR Image Interpretation

Wang, Jiadong; Du, Lan; Li, Yachao; Lyu, Guoxin; Chen, Bin

doi:10.1109/tgrs.2021.3139962

Cited by 17 publications

(5 citation statements)

References 34 publications

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“…Other researchers [8,9] have also recently discussed using ISAR to image objects in space using radars mounted in space, although they appear specifically to restrict themselves to the imaging of satellites, rather than space debris, spacecraft on extra-terrestrial missions or other objects. Their work simulates radars operating at Ku and X bands respectively, rather than the sub-THz frequencies assumed for the sensor in our work.…”

Section: Other Work On the Analysis Of Isar Images Of Satellites From...mentioning

confidence: 99%

“…The authors in Ref. [8] look at estimating the size and attitude of the satellite from observing its 'capsule' (presumably its body), rather than the solar arrays or other 'descriptors' which we use. It uses Deep Learning to teach it how to separate the body from the other descriptors.…”

Section: Other Work On the Analysis Of Isar Images Of Satellites From...mentioning

confidence: 99%

“…As mentioned above, there is a lot of other information which can be used to help with the process, such as the object's kinematics, its orientation, whether it is rolling etc. (see for, example [8][9][10].) In this diagram of the processing, this information is shown to be included at the last stage of the processing.…”

Section: System Architecturementioning

confidence: 99%

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Recognition of objects in orbit and their intentions with space‐borne sub‐THz Inverse Synthetic Aperture Radar

Cherniakov,

Hoare,

Gashinova

et al. 2023

IET Radar Sonar & Navi

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An important aspect of Space Situational Awareness is to estimate the intent of objects in space. This paper discusses how discriminating features can be obtained from Inverse Synthetic Aperture Radar images of such objects and how these discriminators can be used to recognise the objects or to estimate their intent. If the object is, for example, a satellite of a known type, the scheme proposed is able to recognise it. The ability of the scheme to detect damage to the object is also discussed. The focus is on imagery obtained in the sub‐terahertz band (typically 300 GHz) because of the greater imaging capability given by the diffuse scattering which is observed at these frequencies. The paper also discusses the importance of being able to use images obtained by electromagnetic simulation to be able to train the subsystem which recognises features of the objects and describes a practical scheme for creating these simulations for large objects at these very short wavelengths.

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Section: Other Work On the Analysis Of Isar Images Of Satellites From...mentioning

confidence: 99%

Section: Other Work On the Analysis Of Isar Images Of Satellites From...mentioning

confidence: 99%

See 1 more Smart Citation

Recognition of objects in orbit and their intentions with space‐borne sub‐THz Inverse Synthetic Aperture Radar

Cherniakov,

Hoare,

Gashinova

et al. 2023

IET Radar Sonar & Navi

View full text Add to dashboard Cite

show abstract

“…For the first category, the attitude information can be extracted from the scattering point extraction and 3D reconstruction methods. These methods rely on the scatter points association among long-time observation ISAR images [1][2][3] or multi-station ISAR images [4] . Factorization method, which is transferred from computer vision technologies, is usually adopted for ISAR target 3D-reconstruction [5] .…”

Section: Introductionmentioning

confidence: 99%

Joint estimation of space target attitude and size based on polarimetric ISAR images and modified U-net model

Cui,

Fu,

Chen

2023

Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manu

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“…In recent years, many scholars have proposed a large number of space target attitude estimation methods based on the special structural features of the space target body or components. The linear structural features of space target components are used in [11][12][13], the rectangular structure features of the space targets are used in [14,15], and the cuboid or cylindrical structural features of space targets are used in [16]. This type of algorithm utilizes the special structural feature constraints of the space targets to establish the estimation objective function, and achieves good estimation performance under the condition of a high signal-to-noise ratio (SNR).…”

Section: Introductionmentioning

confidence: 99%

Estimating the Observation Area of a Stripmap SAR via an ISAR Image Sequence

Li,

Chen,

Cao

et al. 2023

Remote Sensing

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The stripmap mode is a basic and important mode for spaceborne synthetic aperture radars (SARs). Estimating the time-varying area observed by spaceborne SARs operating in stripmap mode is a practical but challenging field of research. In this article, we propose a novel method that parameterizes the time-varying area observed by the spaceborne SAR operating in the boresight stripmap mode into a fixed antenna attitude. Based on the principle of minimizing the dihedral angle between the plane containing the ideal estimated scatterers and the plane containing the actual parabolic antenna edge of a spaceborne SAR, an objective function is established for estimating the area observed by a spaceborne SAR operating in the boresight stripmap mode. Then, simulation experiments are designed to validate the feasibility and the robustness of the proposed method. The experimental simulation results show that the proposed method is feasible, and even under low signal-to-noise ratio (SNR) conditions of 10 dB, the proposed method still has good robustness.

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Attitude and Size Estimation of Satellite Targets Based on ISAR Image Interpretation

Cited by 17 publications

References 34 publications

Recognition of objects in orbit and their intentions with space‐borne sub‐THz Inverse Synthetic Aperture Radar

Recognition of objects in orbit and their intentions with space‐borne sub‐THz Inverse Synthetic Aperture Radar

Joint estimation of space target attitude and size based on polarimetric ISAR images and modified U-net model

Estimating the Observation Area of a Stripmap SAR via an ISAR Image Sequence

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