Results 21 to 30 of about 20,377 (206)

Counter-Interception and Counter-Exploitation Features of Noise Radar Technology

open access: yesRemote Sensing, 2021
In defense applications, the main features of radars are the Low Probability of Intercept (LPI) and the Low Probability of Exploitation (LPE). The counterpart uses more and more capable intercept receivers and signal processors thanks to the ongoing ...
Gaspare Galati   +3 more
doaj   +1 more source

Radar Signal Intrapulse Modulation Recognition Based on a Denoising-Guided Disentangled Network

open access: yesRemote Sensing, 2022
Accurate recognition of radar modulation mode helps to better estimate radar echo parameters, thereby occupying an advantageous position in the radar electronic warfare (EW).
Xiangli Zhang   +7 more
doaj   +1 more source

Noise Radar Technology as an Interference Prevention Method [PDF]

open access: yesJournal of Electrical and Computer Engineering, 2013
In some applications, such as automotive and marine/navigation, hundreds of radars may operate in a small environment (e.g., a road complex or a strait) and in an allocated frequency band with limited width. Therefore, a compatibility problem between different radars arises that is not easily solved by time, frequency, space, or polarization diversity.
GALATI, GASPARE, PAVAN, GABRIELE
openaire   +4 more sources

Robust Cognitive Radar Tracking Based on Adaptive Unscented Kalman Filter in Uncertain Environments

open access: yesIEEE Access, 2020
This article presents an approach for cognitive radar to track the target state despite unknown statistics or sudden changes in noise exposed to uncertain environments.
Lei Zhong, Yong Li, Wei Cheng, Wei Zhou
doaj   +1 more source

Generating and Detecting Solvable Chaos at Radio Frequencies with Consideration to Multi-User Ranging

open access: yesSensors, 2020
High entropy waveforms exhibit desirable correlation properties in radar and sonar applications when multiple systems are used in close proximity. Unfortunately, the information content of these signals can impose high sampling requirements for digital ...
Aubrey N. Beal   +2 more
doaj   +1 more source

NOISE FEATURES OF BREATH AND HEARTBEAT INFORMANT SIGNALS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2022
Subject and Purpose. The subject of research is the flicker noise present in informant signals of search-and-rescue radars, specifically its properties and the effect it may have on algorithms for detecting and identifying manifestations of human breath ...
O. V. Sytnik
doaj   +1 more source

Wave Measurements Using Multi-Frame Processing of Marine Radar Data

open access: yesSensors, 2021
Marine radars have proven to be useful for measuring ocean waves, but the accuracy of the measurements is limited by several factors including the look-angle dependence of the radar signals as well as noise in the radar data.
David Lyzenga, Mirko Previsic
doaj   +1 more source

Data Processing and Interpretation of Antarctic Ice-Penetrating Radar Based on Variational Mode Decomposition

open access: yesRemote Sensing, 2019
In the Arctic and Antarctic scientific expeditions, ice-penetrating radar is an effective method for studying the bedrock under the ice sheet and ice information within the ice sheet.
Siyuan Cheng   +5 more
doaj   +1 more source

An improved hydrometeor detection method for millimeter-wavelength cloud radar [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
A modified method with a new noise reduction scheme that can reduce the noise distribution to a narrow range is proposed to distinguish clouds and other hydrometeors from noise and recognize more features with weak signal in cloud radar observations ...
J. Ge   +7 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Imaging of Space Targets Using Wideband Pseudo-Noise Signals with Low Peak-to-Average Power Ratio

open access: yesRemote Sensing
With the number of new satellites increasing dramatically, comprehensive space surveillance is becoming increasingly important. Therefore, high-resolution inverse synthetic aperture radar (ISAR) imaging of satellites can provide an in-situ assessment of ...
Simon Anger   +3 more
doaj   +1 more source

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