Results 1 to 10 of about 779,461 (277)
Physical Review Letters, 2020 We propose a quantum metrology protocol for the localization of a non-cooperative point-like target in three-dimensional space, by illuminating it with electromagnetic waves. It employs all the spatial degrees of freedom of N entangled photons to achieve an uncertainty in localization that is sqrt(N) times smaller for each spatial direction than what ...
Lorenzo Maccone, Changliang Ren
openaire +4 more sources
Approaches for Road Surface Roughness Estimation Using Airborne Polarimetric SAR
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 The road surface roughness is an important parameter that determines the quality of a road network. It has a direct influence on the grip and skid resistance of the vehicles.
Arun Babu +2 more
doaj +1 more source
Increasing the noise immunity of radio receiving paths with automatic sensitivity control
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 The relevance of the study of automatic sensitivity control systems (ASC) is determined by their demand for the creation and modernization of radio receiving paths (RRP) with increased noise immunity for radar systems, radio navigation and radio ...
Р. V. Zayats, I. Y. Malevich
doaj +1 more source
Radar: The Cassini Titan Radar Mapper [PDF]
Space Science Reviews, 2004 The Cassini RADAR instrument is a multimode 13.8 GHz multiple-beam sensor that can operate as a synthetic-aperture radar (SAR) imager, altimeter, scatterometer, and radiometer. The principal objective of the RADAR is to map the surface of Titan. This will be done in the imaging, scatterometer, and radiometer modes. The RADAR altimeter data will provide
Elachi, Charles +21 more
openaire +5 more sources
Аdaptive broadband low-noise RF amplifier
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2020 Adaptive broadband low-noise radio frequency amplifiers (ABLNRFA) are widely used in the construction of systems for protecting radio receiving paths from nonlinear damage in a non-stationary electromagnetic environment (EME).
I. Yu. Malevich, P. V. Zayats
doaj +1 more source
Camille Drevet : Les Annamites chez eux (1928) ou l’écriture de l’urgence
Viatica, 2018 Les Annamites chez eux, published in 1928 by Camille Drevet, has a strong link with what is called here “emergency writing”. Sketching a portrait of this feminist, the article examines the theoretical viewpoints surrounding the specific case of female ...
Emmanuelle Radar
doaj +1 more source
Radar detection and speed estimation of high‐speed targets using phase‐modulated waveforms
Electronics Letters, 2023 Specifying parameters of high‐speed targets as range and velocity in radar systems operating with phase‐modulated signals is a problematic process because of the serious effect of high Doppler frequency on these types of waveforms.
Alaa G. Zahra +3 more
doaj +1 more source
Estimation and Adjustment of Polarization Errors in Conical Scan Method
Известия высших учебных заведений России: Радиоэлектроника, 2018 The article proposes a solution of a problem of polarization error compensation for radar object direction finding by means of conical scan method.
A. A. Bludov +3 more
doaj +1 more source
Circulation Retrieval of Wake Vortices under Rainy Conditions with an X Band Radar
Leida xuebao, 2017 At airports, runway operation is the limiting factor for the overall throughput; specifically the fixed and overly conservative ICAO wake turbulence separation minima.
Jean-Yves Schneider +2 more
doaj +1 more source
TANDEM-X MISSION STATUS, PRODUCTS AND PERSPECTIVES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 TanDEM-X is an innovative single-pass interferometric radar mission, which is comprised of two formation flying satellites. The TerraSAR-X (TSX) satellite was launched on June 15th 2007, and its almost identically constructed twin satellite TanDEM-X (TDX)
J. Böer +5 more
doaj +1 more source