Results 141 to 150 of about 2,705,955 (242)

Analysis of low probability of intercept (LPI) radar signals using cyclostationary processing

open access: yes, 2012
LPI radar is a class of radar systems possessing certain performance characteristics that make them nearly undetectable by today's digital intercept receivers. This presents a significant tactical problem in the battle space. To detect these types of radar, new digital receivers that use sophisticated signal processing techniques are required.
openaire   +1 more source

Çoklu işaret ortamında düşük olasılıklı algılama (DOA) radarı işareti tanımlanması ve sınıflandırılması

open access: yes, 2020
Düşük güç ve yüksek bant genişliğine sahip modern düşük algılama olasılıklı radarların geleneksel elektronik harp cihazları tarafından algılanması ve parametrelerinin çıkarılması zorlaşmıştır. Bu kapsamda, yeni nesil sinyal işleme algoritmaları geliştirilerek özellikle düşük olasılıklı algılama radarlarının işaretlerinin etkin şekilde tanımlanması ve ...
openaire   +1 more source

Surrogate Models studies for laser-plasma accelerator electron source design through numerical optimisation [PDF]

open access: yesarXiv
The optimisation of the plasma target design for high quality beam laser-driven plasma injector electron source relies on numerical parametric studies using Particle in Cell (PIC) codes. The common input parameters to explore are laser characteristics and plasma density profiles extracted from computational fluid dynamic studies compatible with ...
arxiv  

86th Annual Meeting of the Meteoritical Society (2024)

open access: yes
Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

On The Identification of Low Probability of Intercept Radar Signals using Time-Frequency Signal Analysis and Processing [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2019
Low probability of intercept (LPI) radar signals are gaining recognition in the field of electronic warfare (EW) due to their unique characteristics. This paper presents an alternative method of analyzing and identifying these LPI signals using Wigner ...
AHMAD Ashraf Adamu   +3 more
doaj  

Morphometric Study of Craters on Saturn's Moon Rhea. [PDF]

open access: yesPlanet Sci J, 2021
Aponte-Hernández B   +3 more
europepmc   +1 more source

Postpartum depression: a developed and validated model predicting individual risk in new mothers. [PDF]

open access: yesTransl Psychiatry, 2022
Munk-Olsen T   +10 more
europepmc   +1 more source

Analysis of low probability of intercept (LPI) radar signals using the Wigner Distribution

open access: yes, 2004
The parameters of Low Probability of Intercept (LPI) radar signals are hard to identify by using traditional periodogram signal processing techniques. Using the Wigner Distribution (WD), this thesis examines eight types of LPI radar signals. Signal to noise ratios of 0 dB and -6dB are also investigated.
openaire   +1 more source

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