Results 11 to 20 of about 195,437 (263)

Application of Composite Spectrum in Agricultural Machines

open access: yesSensors, 2020
Composite spectrum (CS) is a data-fusion technique that reduces the number of spectra to be analyzed, simplifying the analysis process for machine monitoring and fault detection. In this work, vibration signals from five components of a combine harvester
Fernando Feijoo   +2 more
doaj   +1 more source

Target Localization Based on High Resolution Mode of MIMO Radar with Widely Separated Antennas

open access: yesRemote Sensing, 2022
Coherent processing of multiple-input multiple-output (MIMO) radar with widely separated antennas has high resolution capability, but it also brings ambiguity in target localization.
Jiaxin Lu   +3 more
doaj   +1 more source

Sixty Years of Coherent Versus Non-Coherent Tradeoffs and the Road From 5G to Wireless Futures

open access: yesIEEE Access, 2019
Sixty years of coherent versus non-coherent tradeoff as well as the twenty years of coherent versus non-coherent tradeoff in Multiple-Input Multiple-Output (MIMO) systems are surveyed. Furthermore, the advantages of adaptivity are discussed.
Chao Xu   +7 more
doaj   +1 more source

DOA estimation of multiple non-coherent and coherent signals using element transposition of covariance matrix

open access: yesICT Express, 2020
Up to date, investigation of direction of arrival (DOA) gains more effort on multiple signals rather than coherent signals, particularly coherent signals measured by non-uniform and circular arrays — which still remains room for exploration.
Van-Sang Doan, Dong-Seong Kim
doaj   +1 more source

Coherent Measurements of a Multistatic MIMO Radar Network With Phase Noise Optimized Non-Coherent Signal Synthesis

open access: yesIEEE Journal of Microwaves, 2022
For multistatic radar networks in the upper mm-wave range with a large spacing between its radar sensor nodes, a coherent signal distribution is very complex and thus very costly.
Andre Durr   +5 more
doaj   +1 more source

Influence of coherent structure on turbulence characteristics of 0814 strong typhoon Hagupit

open access: yesShenzhen Daxue xuebao. Ligong ban, 2022
In order to explore the formation mechanism of the nonstationary wind speed in the eye wall regions and eye region of a typhoon, taking the measured data of No.0814 strong typhoon Hagupit as the research object, we identify and extract the coherent ...
LI Lixiao   +5 more
doaj   +1 more source

CPFSK Signal Detection in White and Bursty Impulsive Noises

open access: yesIEEE Access, 2019
Designing communication techniques for non-Gaussian impulsive noise has been attracting considerable attention from the research community. In this paper, we focus on the continuous phase frequency shift keying (CPFSK) signal detection for both white and
Guosheng Yang   +4 more
doaj   +1 more source

Macrostructure of the parliament debates and some of their linguistic features on sintagmatically-lexical level [PDF]

open access: yesBaština, 2019
The beginning of studying argumentation stems from the time of Old Greece and the development of rhetoric as discipline. Contemporary argumentation theory is based on Aristotle's rhetoric.
Vojinović-Kostić Jelena
doaj  

Non-Coherent Open-Loop MIMO Communications Over Temporally-Correlated Channels

open access: yesIEEE Access, 2016
This paper investigates the use of non-coherent communication techniques for open-loop transmission over temporally-correlated Rayleigh-fading MIMO channels.
Jorge Cabrejas   +6 more
doaj   +1 more source

Signal acquisition of Luojia-1A low earth orbit navigation augmentation system with software defined receiver

open access: yesGeo-spatial Information Science, 2021
Low Earth Orbit (LEO) satellite navigation signal can be used as an opportunity signal in the case of a Global Navigation Satellite System (GNSS) outage, or as an enhancement by means of traditional GNSS positioning algorithms.
Liang Chen   +7 more
doaj   +1 more source

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