Comparison of measured and predicted bistatic scattering from a right-angle dihedral

Tempelis, Andreas Z.; Jussaume, Matthew E.; Jackson, Julie Ann

doi:10.1109/radar.2011.5960515

Cited by 3 publications

References 8 publications

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Integrating electromagnetics and signal processing into new radar algorithms

Fuller¹,

Hack²,

Sutara³

et al. 2011

2011 International Conference on Electromagnetics in Advanced Applications

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Modern remote sensing applications, including radar, require thoughtful consideration of electromagnetic principles for constructing advanced signal processing algorithms for detection, estimation, tracking, imaging and feature extraction. Starting from a generalized picture of the distributed sensing paradigm, this paper presents current efforts at the Radar Instrumentation Laboratory, Air Force Institute of Technology to develop efficient target models for use in integrated imaging and feature extraction algorithms for fully polarimetric synthetic aperture radar (SAR). In continuing the development of anisotropic target models, closed form expressions are presented for canonical objects, and using both simulation and measurement from the Gotcha challenge data, a new and efficient integrated algorithm is demonstrated for finding distributed objects in SAR imagery.

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Integrating electromagnetics and signal processing into new radar algorithms

Fuller¹,

Hack²,

Sutara³

et al. 2011

2011 International Conference on Electromagnetics in Advanced Applications

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Improved Calibration Technique for Quasi-Monostatic Polarimetric Measurement System Using a Dihedral as the Calibration Reference

2019

IEEE Trans. Antennas Propagat.

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The alluring polarimetric characteristics of a dihedral corner reflector make it specially useful as a polarimetric calibration reference. However, for a radar cross section (RCS) range with quasi-monostatic geometry where there exists a small bistatic angle, the polarimetric calibration error rapidly increases as the bistatic angle increases when a dihedral is used as the polarimetric calibration reference. In this work, an improved calibration technique for quasi-monostatic polarimetric measurement system is proposed. The scattering mechanism of a rectangular dihedral corner reflector in a quasi-monostatic radar system is analyzed, where the bistatic angle constrains to be within a few degrees. The polarimetric characteristic of the dihedral is evaluated by means of physical optics (POs) approximation. Combining the evaluation formulation with a nonlinear calibration technique, the polarimetric measurement error model can be adapted for the quasi-monostatic geometry so that accurate polarimetric calibration may be accomplished. The experimental results are presented to validate the proposed technique with essential improvement in the calibrated cross polarimetric measurements.

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Parametric models for signature prediction and feature extraction

Jackson

2018

2018 International Applied Computational Electromagnetics Society Symposium (ACES)

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Comparison of measured and predicted bistatic scattering from a right-angle dihedral

Cited by 3 publications

References 8 publications

Integrating electromagnetics and signal processing into new radar algorithms

Integrating electromagnetics and signal processing into new radar algorithms

Improved Calibration Technique for Quasi-Monostatic Polarimetric Measurement System Using a Dihedral as the Calibration Reference

Parametric models for signature prediction and feature extraction

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