Results 331 to 340 of about 6,360,179 (406)
Some of the next articles are maybe not open access.
IEEE Transactions on Aerospace and Electronic Systems, 1984
Using range and Doppler information to produce radar images is a technique used in such diverse fields as air-to-ground imaging of objects, terrain, and oceans and ground-to-air imaging of aircraft, space objects, and planets. A review of the range-Doppler technique is presented along with a description of radar imaging forms including details of data ...
Jack L. Walker +4 more
openaire +2 more sources
Using range and Doppler information to produce radar images is a technique used in such diverse fields as air-to-ground imaging of objects, terrain, and oceans and ground-to-air imaging of aircraft, space objects, and planets. A review of the range-Doppler technique is presented along with a description of radar imaging forms including details of data ...
Jack L. Walker +4 more
openaire +2 more sources
New Radar Image of Venus [PDF]
Science, 1976 A new radar image of Venus covering the latitude range 46° to 75° and the approximate longitude range 290° to 10° is shown. The resolution is approximately 20 kilometers.
Gordon H. Pettengill +2 more
openaire +2 more sources
2018
Synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) are referred to in literature as imaging radars because of their ability to reconstruct electro-magnetic (e.m.) images of natural and man-made objects by coherently processing the echoes coming from the targets at different aspect angles.
Berizzi, Fabrizio +2 more
openaire +3 more sources
Synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) are referred to in literature as imaging radars because of their ability to reconstruct electro-magnetic (e.m.) images of natural and man-made objects by coherently processing the echoes coming from the targets at different aspect angles.
Berizzi, Fabrizio +2 more
openaire +3 more sources
Space Science Reviews, 2007
Earth-based radar has been one of the few, and one of the most important, sources of new information about Mercury during the three decades since the Mariner 10 encounters. The emphasis during the past 15 years has been on full-disk, dual-polarization imaging of the planet, an effort that has been facilitated by the development of novel radar ...
openaire +3 more sources
Earth-based radar has been one of the few, and one of the most important, sources of new information about Mercury during the three decades since the Mariner 10 encounters. The emphasis during the past 15 years has been on full-disk, dual-polarization imaging of the planet, an effort that has been facilitated by the development of novel radar ...
openaire +3 more sources
Passive OAM-Based Radar Imaging With Single-In-Multiple-Out Mode
IEEE Microwave and Wireless Components Letters, 2018In recent years, the orbital angular momentum (OAM) has been widely applied in the target detection and imaging to improve the performance of conventional radar systems. A passive OAM-based radar imaging method is studied in this letter.
Kang Liu +3 more
semanticscholar +1 more source
Physics Bulletin, 1984
Why is there so much interest in space radar systems? Radar is the way to monitor changing events in a reliable manner as it is largely independent of weather – particularly useful for Europe which is so often widely cloud-covered.
P H A Martin-Kaye, G M Lawrence
openaire +2 more sources
Why is there so much interest in space radar systems? Radar is the way to monitor changing events in a reliable manner as it is largely independent of weather – particularly useful for Europe which is so often widely cloud-covered.
P H A Martin-Kaye, G M Lawrence
openaire +2 more sources
2005
All radar targets can be classified into point and complex targets. A point target is a convenient model object commonly used in radar science and practice to solve certain types of problems. It is defined as a target located at distance R from a radar at the viewing point '0', which scatters the incident radar radiation isotropically.
A. Pasmurov, J. Zinoviev
openaire +2 more sources
All radar targets can be classified into point and complex targets. A point target is a convenient model object commonly used in radar science and practice to solve certain types of problems. It is defined as a target located at distance R from a radar at the viewing point '0', which scatters the incident radar radiation isotropically.
A. Pasmurov, J. Zinoviev
openaire +2 more sources
16th European Microwave Conference, 1986, 1986
This paper is concerned with the problem of obtaining an image by means of a spatially coherent radar signal processing. After a brief review of the above technique, the problems of motion compensation (target tracking) and of 2D-Fourier inversion, arising in practical realisations, are discussed. In addition, the possibility of extending the theory to
GCorsini +4 more
openaire +3 more sources
This paper is concerned with the problem of obtaining an image by means of a spatially coherent radar signal processing. After a brief review of the above technique, the problems of motion compensation (target tracking) and of 2D-Fourier inversion, arising in practical realisations, are discussed. In addition, the possibility of extending the theory to
GCorsini +4 more
openaire +3 more sources
Radar imaging of the lunar poles
Nature, 2003Long-wavelength measurements reveal a paucity of ice in the Moon's polar craters. We have used a radio telescope at Arecibo Observatory, Puerto Rico, to map features of the lunar poles — some as small as 300 metres across — by collecting long-wavelength radar images that can penetrate several metres of lunar dust.
Campbell, Bruce A. +5 more
openaire +3 more sources
Airborne Forward-Looking Radar Super-Resolution Imaging Using Iterative Adaptive Approach
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019Airborne forward-looking radar (AFLR) imaging has raised many concerns in fields of Earth observation, independent of weather and daytime. Constrained by imaging principles, conventional high-resolution radar imaging techniques such as synthetic aperture
Yongchao Zhang +5 more
semanticscholar +1 more source