Results 321 to 330 of about 6,564,297 (383)
Some of the next articles are maybe not open access.
Spaceborne Synthetic Aperture Radar Imaging Algorithms: An overview
IEEE Geoscience and Remote Sensing Magazine, 2022Spaceborne synthetic aperture radar (SAR) has been widely used in the national defense, geologic mapping, disaster estimation, and other fields. This technique has realized the technological leap forward from low-Earth-orbit (LEO) to medium-Earth-orbit ...
Guangcai Sun +5 more
semanticscholar +1 more source
Inverse Synthetic Aperture Radar Imaging Using a Fully Convolutional Neural Network
IEEE Geoscience and Remote Sensing Letters, 2020The traditional inverse synthetic aperture radar (ISAR) imaging uses the range-Doppler (RD) type of methods. The compressive sensing (CS)-based ISAR imaging is capable of obtaining good target images of high contrast and less sidelobe with much less ...
Changyu Hu, Ling Wang, Ze Li, Daiyin Zhu
semanticscholar +1 more source
Through Fog High-Resolution Imaging Using Millimeter Wave Radar
Computer Vision and Pattern Recognition, 2020This paper demonstrates high-resolution imaging using millimeter Wave (mmWave) radars that can function even in dense fog. We leverage the fact that mmWave signals have favorable propagation characteristics in low visibility conditions, unlike optical ...
Junfeng Guan +4 more
semanticscholar +1 more source
An Advanced Nonlinear Frequency Modulation Waveform for Radar Imaging With Low Sidelobe
IEEE Transactions on Geoscience and Remote Sensing, 2019With the development of high-resolution radar satellite for global comprehensive environmental monitoring, day-and-night and all-weather surveillance has become an active and growing research field. However, in all cases, these applications require radar
Guodong Jin +7 more
semanticscholar +1 more source
Chip‐Based Microwave‐Photonic Radar for High‐Resolution Imaging
Laser & Photonics reviews, 2020Radar is the only sensor that can realize target imaging at all time and all weather, which would be a key technical enabler for future intelligent society.
Simin Li +9 more
semanticscholar +1 more source
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
Journal of Geophysical Research, 1976
The paper presents a set of seven radar brightness images and the corresponding altitude contours of small portions (circular regions of 1500-km diameter) of the Venus surface located at the center of the disk taken in the winter of 1973-1974. The regions imaged are arranged in an equatorial belt on the one face of Venus which is always seen on the ...
R. M. Goldstein +2 more
openaire +1 more source
The paper presents a set of seven radar brightness images and the corresponding altitude contours of small portions (circular regions of 1500-km diameter) of the Venus surface located at the center of the disk taken in the winter of 1973-1974. The regions imaged are arranged in an equatorial belt on the one face of Venus which is always seen on the ...
R. M. Goldstein +2 more
openaire +1 more source
Radar Imaging for Maritime Observation
2018Radar imaging is one of the most important tools for monitoring the sea surface. This book presents the most recent radar signal processing techniques and innovative radar concepts. The first part of the book discusses mathematical details of both SAR and ISAR techniques.
BERIZZI, FABRIZIO +2 more
openaire +2 more sources
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 +1 more source
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 +1 more source
Fractures In Limestone Imaged By Radar
11th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1998Radar data collected along profiles and in grids have assisted in identifying subsurface pathways that might carry motor fuel known to be contaminating domestic water wells. Disruptions of reflections were visible in conventional radar profiles were interpreted as fractures zone in limestone bedrock. Radar data acquired in a grid over zones where these
openaire +1 more source