Results 341 to 350 of about 1,270,781 (379)
Some of the next articles are maybe not open access.
2021
Ground-based radar systems have been used to observe clouds and precipitation since the 1940s. While weather radars that use centimeter waves can observe precipitation several hundred kilometers away, radars that are dedicated to cloud observations use millimeter waves and have limited ranges of just a few tens of kilometers.
Martin Hagen +7 more
openaire +3 more sources
Ground-based radar systems have been used to observe clouds and precipitation since the 1940s. While weather radars that use centimeter waves can observe precipitation several hundred kilometers away, radars that are dedicated to cloud observations use millimeter waves and have limited ranges of just a few tens of kilometers.
Martin Hagen +7 more
openaire +3 more sources
Decorrelation in interferometric radar echoes
IEEE Transactions on Geoscience and Remote Sensing, 1992A radar interferometric technique for topographic mapping of surfaces, implemented utilizing a single synthetic aperture radar (SAR) system in a nearly repeating orbit, is discussed.
H. Zebker, J. Villasenor
semanticscholar +1 more source
Quantum Radar and Noise Radar Concepts
2021 IEEE Radar Conference (RadarConf21), 2021Comparative analysis of Noise Radar (NR) and Quantum Radar (QR) concepts are presented in the paper. Recently proposed methods for generation of quantum correlated signals directly in microwave frequency range give more chances for design of QR for long-range applications.
openaire +2 more sources
IEEE International Radar Conference, 2005., 2005
In the search for a better rotating radar, a self-supporting array that rolls like a wheel can improve mechanical reliability and return higher-definition target resolution. The Rolling Radar concept evolved from the need to design and build a large rotating 3D radar as an alternative to multifaceted fixed radar installations, or large, expensive ...
openaire +3 more sources
In the search for a better rotating radar, a self-supporting array that rolls like a wheel can improve mechanical reliability and return higher-definition target resolution. The Rolling Radar concept evolved from the need to design and build a large rotating 3D radar as an alternative to multifaceted fixed radar installations, or large, expensive ...
openaire +3 more sources
RADAR | Incoherent Scatter Radar
2003This article is reproduced from the previous edition, volume 4, pp 1812–1819, © 2003, Elsevier Ltd.
openaire +2 more sources
2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2016
Preliminary results of the comparative analysis of Quantum Radar (QR) based upon quantum entanglement phenomenon and Noise Radar (NR) based upon classical coherence notion and correlation processing of random signals are presented in the paper. It has been shown that the basic idea of entangled multi-photon QR for simultaneous implementing of high ...
openaire +2 more sources
Preliminary results of the comparative analysis of Quantum Radar (QR) based upon quantum entanglement phenomenon and Noise Radar (NR) based upon classical coherence notion and correlation processing of random signals are presented in the paper. It has been shown that the basic idea of entangled multi-photon QR for simultaneous implementing of high ...
openaire +2 more sources
Geo-radar in tunneling - The radar tunnel
Fourth International Conference on Ground Penetrating Radar, 1992Between 75 and 100 kilometres of tunnel are excavated in Norway each year. In many of these tunnelling projects, the contractor is looking for methods to acquire geological information during the excavation process, enabling him to carry out the project safely and in a cost effective manner.
Rolf Austvik +2 more
openaire +2 more sources
Radar Polarimetry: Applications to Radar Systems
1994The topic of this chapter is vector signal processing in polarimetric radars, which require simultaneous signal reception through two orthogonally polarized channels.
openaire +3 more sources
Radar Simulation and Radar Improvement of the Galecopperbridge
IABSE Reports, 2013<p>Galecopperbrug is a 3 span cable-stayed bridge with a main span of 180m over the canal.</p><p>During strengthening of the Galecopper bridge, the design team was tasked to solve problems caused to ships radar when using the canal caused by multiple reflections of radar waves amongst the bridge beams.
Dimitri Tuinstra +4 more
openaire +1 more source
Radar Transponders and Radar Target Enhancers
Journal of Navigation, 1995Radar transponders and radar target enhancers have been in use in a variety of applications for many years. Perhaps the most widely-known applications of radar transponders are in Identification Friend or Foe (IFF) and its civilian counterpart, secondary surveillance radar for air traffic control, and as racons in marine navigation and, most recently ...
openaire +2 more sources