Results 31 to 40 of about 16,631 (258)

Information technology based on noise-like signals [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this article is a brief overview of the results of research on the use of noise-like signals in broadband radio systems conducted under the leadership of Yuri Vasilyevich Gulyaev. Methods.
Gulyaev, Yuri Vasilyevich   +3 more
doaj   +1 more source

Developments in target micro-doppler signatures analysis: radar imaging, ultrasound and through-the-wall radar [PDF]

open access: yes, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Soraghan, J. J.   +5 more
core   +1 more source

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

Correlation between cosmic noise absorption and VHF coherent echo intensity [PDF]

open access: yes, 2005
International audienceWe present examples and statistical analysis of the events with statistically significant correlation between the cosmic noise absorption (CNA) and the signal-to-noise ratio (SNR) of the VHF coherent echo intensity in the area ...
Makarevitch, R.A.   +4 more
core   +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

Adaptive detection of distributed targets in compound-Gaussian noise without secondary data: A Bayesian approach [PDF]

open access: yes, 2011
In this paper, we deal with the problem of adaptive detection of distributed targets embedded in colored noise modeled in terms of a compound-Gaussian process and without assuming that a set of secondary data is available.The covariance matrices of the ...
Bandiera, Francesco   +6 more
core   +1 more source

Doppler-Spread Clutter Suppression in Single-Channel Noise Radar

open access: yes, 2022
S.881-883Continuous emission noise radars suffer from the problem of reduced sensitivity due to masking effects caused by the side-lobes of direct signal leakage, clutter returns and echoes of close targets.
Worms, Josef   +4 more
core   +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 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

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