Results 1 to 10 of about 272,725 (249)

Approaches for Road Surface Roughness Estimation Using Airborne Polarimetric SAR

open access: yesIEEE 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

open access: yesDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 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

Аdaptive broadband low-noise RF amplifier

open access: yesDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 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

open access: yesViatica, 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

open access: yesElectronics 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

TanDEM-X Long-Term System Performance After 10 Years of Operation

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The TanDEM-X mission, formed by the TanDEM-X satellite in cooperation with its almost identical twin TerraSAR-X (TSX), has mainly been designed to acquire bistatic synthetic aperture radar (SAR) images of the Earth. Initiated in 2010, the primary mission
Allan Bojarski   +11 more
doaj   +1 more source

On the Derivation of Volume Decorrelation From TanDEM-X Bistatic Coherence

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The bistatic interferometric coherence is affected by different sources of error, among which volume decorrelation, which quantifies the amount of noise caused by volume scattering mechanisms.
Paola Rizzoli   +5 more
doaj   +1 more source

Estimation and Adjustment of Polarization Errors in Conical Scan Method

open access: yesИзвестия 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

TANDEM-X MISSION STATUS, PRODUCTS AND PERSPECTIVES [PDF]

open access: yesThe 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

The TanDEM-X Mission Phases—Ten Years of Bistatic Acquisition and Formation Planning

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
TanDEM-X is a formation flying interferometer consisting of two SAR satellites. Together they acquire bistatic SAR data of the earth in order to generate a global digital elevation model as well as individual scientific interferometric datasets on user ...
Markus Bachmann   +11 more
doaj   +1 more source

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