| Radar Backscatter from the Sea: Controlled Experiments |
APR 92 |
5 pages |
| Authors:
R. K. Moore; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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 | The subwindowing method of modelling synthetic-aperture-radar (SAR) imaging of ocean waves was extended to allow wave propagation in arbitrary directions. Simulated images show that the SAR image response to swells that are imaged by velocity bunching is reduced by random smearing due to wind-generated waves. The magnitude of this response is not accurately predicted by introducing a finite coherence time in the radar backscatter. The smearing does not affect the ... |
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| Investigation of the Properties of Radar Backscatter from Sea Ice |
SEP 89 |
6 pages |
| Authors:
R. K. Moore; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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| Measurements of the radar backscatter from sea ice have been made during the years 1985-1988 using specialized radar scatterometers developed for the purpose. Most of the experiments during this period have involved artificial sea ice grown at CRREL, but measurements also were made during LIMEX in the Labrador Sea during March, 1989. Much of the work involved use of a very fine resolution scatterometer to determine the sources of scattering ... |
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| Measurements of Radar Backscatter from Arctic Sea Ice in the Summer |
JUL 1981 |
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| Authors:
R. G. Onstott; S. Gogineni; C. V. Delker; R. K. Moore; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
|
 | Measurements of radar backscatter from sea ice located near Svalbarb and Greenland were made during the summer of 1980 as part of Project YMER. These data were acquired using the University of Kansas helicopter-borne microwave active spectrometer (HELOSCAT II) which operated over a frequency range of 8 to 18 GHz and an angle of incidence range of 0 degrees to 50 degrees. The presence of meltponds, the transformation of the ... |
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| Measurements of Radar Backscatter form Arctic Sea Ice in the Summer. Appendices A and B |
JUL 1981 |
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| Authors:
R. G. Onstott; S. Gogineni; R. K. Moore; C. V. Delker; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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| For abstract see AD-A105 586. |
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| Four Years of Low Altitude Sea Ice Broadband Backscatter Measurements |
JUL 1980 |
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| Authors:
R. G. Onstott; R. K. Moore; S. Gogineni; C. Delker; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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| The ability to use radar to discriminate Arctic Sea ice types has been investigated using surface-based and helicopter-borne scatterometer systems. The surface-based FM/CW radar operated at 1.5 GHz and at multiple frequencies in the 8-18 GHz region. Measurements were made at angles of 10 degrees to 70 degrees from nadir. The helicopter-based radar operated at the 8- 18 GHz frequencies with incidence angles of 0 degrees to 60 degrees. Extensive ... |
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| Dielectric Properties of Snow |
1980 |
13 pages |
| Authors:
W. H. Stiles; F. T. Ulaby; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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| This paper is a review of the dielectric properties of snow in the radio frequency range from 100 kHz to 35 GHz. Applicable dielectric mixing formulas are discussed and compared to available experimental data. Below 1 GHz, the dielectric behavior of snow is well understood and has led to development of sensors to measure the liquid water content of snow, while above 1 GHz, the scarcity of experimental data and ... |
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| Radar Image Simulation: Validation of the Point Scattering Model. Volume 1 |
SEP 1977 |
277 pages |
| Authors:
J. C. Holtzman; V. H. Kaupp; J. L. Abbott; V. S. Frost; E. E. Komp; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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| The purpose of this report is to present the validation of the Point Scattering Radar Image Simulation Model and its software implementation developed at RSL (Remote Sensing Laboratory, University of Kansas, Lawerence, Kansas). The work was sponsored by ETL (Engineer Topographic Laboratories, U.S. Army, Fort Belvoir, Virginia). Two different instances of model validation are reported. First is validation of both SLAR(Side-Looking Airborne Radar) and PPI (Plan-Position Indicator) radar simulation models ... |
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| Radar Image Simulation: Validation of the Point Scattering Method. Volume 2 |
SEP 1977 |
363 pages |
| Authors:
J. C. Holtzman; V. H. Kaupp; J. L. Abbott; V. S. Frost; E. E. Komp; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE REMOTE SENSING LAB
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| The technical details of all aspects of the radar image simulation are reported. In particular, the activities associated with the Point Scattering Method are discussed. They include: (1) construction of a ground truth data base, i.e., the terrain model which incorporates elevation and dielectric behavior; (2) digitization of the terrain information to build a digital matrix; (3) formation of a backscatter data catalogue; (4) radar device modeling; and (5) problems ... |
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Reports by Corporate Author
