Clutter

Weiner,

doi:10.1049/sbra001e_ch9

Cited by 4 publications

(3 citation statements)

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“…These procedures are illustrated using one acquisition from the Multi-Channel Airborne Radar Measurement (MCARM) bistatic clutter collections. Results similar to some of the results presented in this paper have appeared in the literature (see, e.g., [7]- [9] for discussions of bistatic SAR resolution cell area), but they do not appear to be fully known to the bistatic clutter measurement community [1], and a concise end-to-end procedure for bistatic resolution cell characterization does not yet appear to exist.…”

Section: Introductionsupporting

confidence: 76%

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Bistatic resolution cell characterization using digital elevation and Land-Use Land-Cover data

Hack

Umbach

Patton

2015

2015 IEEE Radar Conference (RadarCon)

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Bistatic clutter measurement requires accurate characterization of the incident and scattering geometry, resolution cell area, and terrain type. This paper presents a methodology to characterize the geometry and terrain type of bistatic clutter range-Doppler resolution cells over uneven terrain using digital elevation map (DEM) and Land-Use Land-Cover (LULC) data. A procedure to calculate the local ground plane using DEM data is presented, which enables calculation of the incident and scattering angles relative to the ground plane normal vector. Then, closed form expressions for a parallelogram approximation to the bistatic resolution cell area are presented for arbitrary bistatic geometries. Finally, terrain type is classified using LULC data. These procedures are illustrated using one acquisition from the Multi-Channel Airborne Radar Measurement (MCARM) bistatic clutter collections.

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Section: Introductionsupporting

confidence: 76%

“…Resolution cell area may be beamwidth-limited, delay-limited, or Doppler-limited, depending on the sensor system and collection geometry [1]. Beamwidth-limited cells are bounded by the transmitter and/or receiver antenna mainlobe beamwidths.…”

Section: Introductionmentioning

confidence: 99%

Bistatic resolution cell characterization using digital elevation and Land-Use Land-Cover data

Hack

Umbach

Patton

2015

2015 IEEE Radar Conference (RadarCon)

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“…Unlike monostatic sea clutter analysis, very few bistatic sea clutter results have been published [8] [17], leaving the area of bistatic clutter research open to considerable additional investigation.…”

Section: Introductionmentioning

confidence: 99%

Coherent analysis of horizontally-polarized monostatic and bistatic sea clutter

Ritchie

Al-Ashwal

Stove

et al. 2012

IET International Conference on Radar Systems (Radar 2012)

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Venus Express bistatic radar: High‐elevation anomalous reflectivity

et al. 2009

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[1] Magellan (MGN) bistatic radar observations in 1994 confirmed earlier Pioneer Venus reports of unusual Venus surface reflectivity and emissivity at elevations above 6054 km radius. They also revealed that the anomalous values of surface dielectric constant e near Cleopatra Patera included a large imaginary component (e % Ài 100) at 13 cm wavelength, consistent with a semiconducting surface material. The MGN observations were conducted using a linearly polarized wave, canted at 45°with respect to the plane of incidence and radiated by the MGN synthetic aperture radar antenna toward the specularly reflecting region of the mean planetary surface. In 2006 similar experiments were conducted using 13 cm circularly polarized transmissions from Venus Express (VEX). The VEX signal-to-noise ratio (SNR) was lower than that of MGN, but elevated jej has been inferred broadly over Maxwell Montes. A quasi-specular echo was detected near Cleopatra but with insufficient SNR to address the question of conductivity. An early failure of the VEX 13 cm radio system precludes further measurements with VEX.

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Clutter

Cited by 4 publications

References 0 publications

Bistatic resolution cell characterization using digital elevation and Land-Use Land-Cover data

Bistatic resolution cell characterization using digital elevation and Land-Use Land-Cover data

Coherent analysis of horizontally-polarized monostatic and bistatic sea clutter

Venus Express bistatic radar: High‐elevation anomalous reflectivity

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