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Passive Millimeter-Wave Dual-Polarization Imagers
By: Koehl, E.R.; Elmer, T.W.; Gopalsami, N.; Shaolin Liao; Heifetz, A.; Raptis, A.C.; Dieckman, E.; Avers, K.;
2012 / IEEE
This item was taken from the IEEE Periodical ' Passive Millimeter-Wave Dual-Polarization Imagers ' We have developed two passive millimeter-wave imagers for terrestrial remote sensing: one is an integrated imaging and spectroscopy system in the 146-154-GHz range with 16 channels of 500-MHz bandwidth each, and the other is a single-channel dual-polarized imaging radiometer in the 70-100-GHz range. The imaging in both systems is implemented through translation of a 15-cm Gaussian dielectric imaging lens. We compared the outdoor images of objects such as car, vegetation, sky, and ground by both the systems under various weather conditions, including clear, cloudy, and rainy times. A ray-tracing simulation with radiative transfer equation was used to quantify the polarization diversity of the acquired images.
Frequency 70 Ghz To 100 Ghz
Passive Millimeter Wave Dual-polarization Imagers
Terrestrial Remote Sensing
Single-channel Dual-polarized Imaging Radiometer
Gaussian Dielectric Imaging Lens
Outdoor Object Images
Clear Weather Conditions
Cloudy Weather Conditions
Ray Tracing Simulation
Radiative Transfer Equation
Frequency 146 Ghz To 154 Ghz
Bandwidth 500 Mhz
Millimetre Wave Imaging
Geophysical Image Processing
Electromagnetic Wave Polarisation
Components, Circuits, Devices And Systems
Power, Energy And Industry Applications