Bistatic scattering characterization of complex objects

Eigel, R.L.; Collins, P.J.; Terzuoli, A.J.; Nesti, G.; Fortuny, J.

doi:10.1109/36.868867

Cited by 40 publications

(16 citation statements)

References 5 publications

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“…A system dedicated to the simultaneous acquisition of mono-and bistatic SAR data has been suggested in [5][9] together with a wealth of scientific applications. For example, a quantitative evaluation of the bistatic radar cross section (RCS) facilitates the detection and recognition of targets based on their characteristic bistatic radar signatures [18] [19]. The segmentation and classification in radar images is expected to be improved by comparing the spatial statistics of mono-and bistatic scattering coefficients [20].…”

Section: Bistatic Observationmentioning

confidence: 99%

Spaceborne bi- and multistatic SAR: potential and challenges

Krieger

Moreira

2006

IEE Proc., Radar Sonar Navig.

273

120

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Bi-and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas which are mounted on separate platforms. Such a spatial separation has several operational advantages which will increase the capability, reliability and flexibility of future SAR missions. We will introduce various spaceborne bi-and multistatic SAR configurations and compare their potentials for different applications like frequent monitoring, wide swath imaging, scene classification, single-pass cross-track interferometry or resolution enhancement.

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Section: Bistatic Observationmentioning

confidence: 99%

Spaceborne bi- and multistatic SAR: potential and challenges

Krieger

Moreira

2006

IEE Proc., Radar Sonar Navig.

273

120

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“…Furthermore, a vector network analyzer (Agilent HP 8510), which was used in a multiple sources configuration with two synthesizers and two external mixers (the measured noise floor level is about −100 dB and the dynamic range is equal to 89 dB) is used to mesure the amplitude and the phase of the electric fields. In this study, we use two types of transmitting antennas: a parabolic one (Hyptra NE5256) which operates in C-band (4-8 GHz) and a horn antenna that operates in X-band (8)(9)(10)(11)(12). The receiving antenna is a wide band ridged horn antenna (ARA DRG-118) with a frequency range of 1 to 18 GHz.…”

Section: The Indoor Scaled-model Measurementsmentioning

confidence: 99%

“…Some experiments have been performed by using two antennas on separate platforms [12][13][14][15][16] while others are carried out with a monostatic radar and a reflective plane [17]. Within this framework, ONERA has performed scaled-model measurements in its anechoic facility BABI.…”

Section: Introductionmentioning

confidence: 99%

A Rigorous Forest Scattering Model Validation Through Comparison With Indoor Bistatic Scattering Measurements

Bellez¹,

Roussel²,

Dahon³

et al. 2011

PIER B

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Abstract-In this paper, we present numerical simulations and indoor bistatic scattering measurements on scaled targets. The targets are vertical and/or tilted dielectric parallelepipeds representing the main forest elements (tree-trunks and primary branches) at VHF and low-UHF frequencies. They are placed above an aluminum circular plate to simulate a flat ground. The measurements have been conducted in the anechoic chamber of the "Centre Commun de Ressources Microondes" (CCRM) in Marseille, France. A 3D forest scattering model using a Method of Moments (MoM) is deployed to simulate the electric fields scattered by these targets. Two radar geometric, azimuthal and zenithal, bistatic configurations with special attention to the specular direction have been considered. Simulation results and experimental data are confronted for both V V -and HH-polarizations in order to evaluate the accuracy of our model. We have obtained a very good agreement between theoretical and experimental scattered fields for both the magnitude and phase.

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“…The addition of a receiver in a second location introduces new error sources involving antenna placement, increased sensitivity to misplacement of the calibration objects, and the suitability of particular objects for bistatic measurements. Several considerations arise in the selection of objects for bistatic calibration [4]- [6]: the variability of the bistatic scattering pattern across the angular region of interest, the intensity of the scattering across the angular region of interes, the availability of a reliable reference dataset such as calculations, and polarization-changing phenomena. As a result, reference objects that are quite suitable for monostatic calibration, such as dihedrals and trihedrals, are not always desirable for bistatic measurements.…”

Section: Introductionmentioning

confidence: 99%

An investigation of bistatic calibration objects

Bradley

Collins

Fortuny-Guasch

et al. 2005

IEEE Trans. Geosci. Remote Sensing

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Abstract-Several popular metallic bistatic calibration objects are investigated, including a sphere, long and short cylinders, dihedral, trihedral, circular disk and wire mesh. Comparisons are made between the advantages and disadvantages of various objects for calibration. The analysis addresses sensitivity to object alignment error, availability of accurate radar cross section (RCS) calculations and bistatic RCS levels. Both theoretical concepts and practical considerations are discussed based on measurements accomplished at the European Microwave Signature Laboratory (EMSL) of the EC Joint Research Center (JRC) in Ispra, Italy. This facility has the capability to produce far-field fully polarimetric precision bistatic measurements in a 30 cm diameter quiet zone, suitable for comparing different calibration objects.

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Bistatic scattering characterization of complex objects

Cited by 40 publications

References 5 publications

Spaceborne bi- and multistatic SAR: potential and challenges

Spaceborne bi- and multistatic SAR: potential and challenges

A Rigorous Forest Scattering Model Validation Through Comparison With Indoor Bistatic Scattering Measurements

An investigation of bistatic calibration objects

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