See through the wall detection and classification of scattering primitives

Marble, Jay A.; Hero, Alfred O.

doi:10.1117/12.665934

Cited by 6 publications

(2 citation statements)

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“…LITERATURE REVIEW Dihedral scattering mechanisms are found in a variety of scenes and have been used to model vehicle-ground bounce [3], tree trunk-ground interface [4], interior building walls [5], and exterior building-sidewalk-road interactions. Dihedral corner reflectors may also be deliberately placed in a scene for use in radar calibration [6].…”

Section: Introductionmentioning

confidence: 99%

Analytic Physical Optics Solution for Bistatic, 3D Scattering From a Dihedral Corner Reflector

Jackson

2012

IEEE Trans. Antennas Propagat.

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We derive an analytic scattering model for 3D bistatic scattering from a dihedral using geometrical optics (GO) and physical optics (PO). We use GO to trace ray reflections, and we evaluate the PO integral(s) for the field scattered by each plate of the dihedral. Multiple cases of reflection geometry are considered to account for effects of the dihedral plate size and antenna aspect angles. The complex-valued (amplitude and phase) scattering response is derived. The resulting parametric scattering model is presented in terms of the vertical and horizontal co-polarization and cross-polarization responses that correspond to the outputs of industry-standard numerical prediction codes. Comparing the derived model to available codes for method of moments (MoM), shooting and bouncing rays (SBR), and parametric models (PM), we demonstrate that the derived solution achieves the same accuracy as SBR, approximates MoM, is more accurate than PM, and does so in fast computation time comparable to a PM.

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Section: Introductionmentioning

confidence: 99%

Analytic Physical Optics Solution for Bistatic, 3D Scattering From a Dihedral Corner Reflector

Jackson

2012

IEEE Trans. Antennas Propagat.

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“…In literature, there is consensus that building features can be more reliably extracted using an approach exploiting scatterer models, e.g., [4], [15]- [19]. In this approach, the building structural elements are represented by canonical scatterers such as spheres, cylinders, corners, and planar surfaces.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Building Features from Stand-Off Measured Through-Wall Radar Data

Wit¹,

Rossum²

2016

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Automated extraction of building features is a great aid in synthesizing building maps from radar data. In this paper, a model-based method is described to detect and classify canonical scatters, such as corners and planar walls, inside a building. Once corners and walls have been located, a building map can be synthesized. To detect and classify the canonical scatterers, sparse reconstruction with an overcomplete dictionary is used. The dictionary is tuned to phase models that are specific to the different canonical scatterers, i.e., a linear phase change for walls and a quadratic phase change for corners. This is a potentially robust method for detecting canonical scatterers because the polynomial degree of the measured phase is preserved, even after propagation through a wall. Building-feature extraction results obtained with actually stand-off measured through-wall radar data are discussed.Index Terms-Overcomplete dictionary (OCD), radar imaging, sparse reconstruction, through-wall radar.

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Extension of analytic physical optics to calculate bistatic 3D scattering from obtuse dihedral

Song

Yang

et al. 2017

Journal of Electromagnetic Waves and Applications

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See through the wall detection and classification of scattering primitives

Cited by 6 publications

References 0 publications

Analytic Physical Optics Solution for Bistatic, 3D Scattering From a Dihedral Corner Reflector

Analytic Physical Optics Solution for Bistatic, 3D Scattering From a Dihedral Corner Reflector

Extraction of Building Features from Stand-Off Measured Through-Wall Radar Data

Extension of analytic physical optics to calculate bistatic 3D scattering from obtuse dihedral

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