Temat: ultra wide band - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Technologia UWB w procesie dystrybucji
UWB technology in the distribution process
Autorzy:: Rzempołuch, M.
Powiązania:: https://bibliotekanauki.pl/articles/2058321.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: dystrybucja
cross docking
Ultra Wide Band
distribution
Opis:: Celem artykułu jest przedstawienie i objaśnienie technologii UWB oraz możliwości jej zastosowania, a w szczególności dla procesu dystrybucji. Przedstawiono model w jakim mogłaby funkcjonować ta technologia w cross dockingu.
The aim of the article is to present and explain the UWB technology and its applicability, in particular for the distribution process. A cross docking model with this technology
Źródło:: Journal of TransLogistics; 2018, 4, 1; 149--156
2450-5870
Pojawia się w:: Journal of TransLogistics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Development of Data Processing Tools for the Analysis of Radargrams in Utility Detection Using Ground Penetrating Radar
Autorzy:: Sagnard, F.
Powiązania:: https://bibliotekanauki.pl/articles/308222.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: buried pipes
dielectric characterization
GPR
ICA
PCA
polarization
template matching
ultra-wide band
Opis:: The extraction of quantitative information from Ground Penetrating Radar (GPR) data sets (radargrams) to detect and map underground utility pipelines is a challenging task. This study proposes several algorithms included in the main stages of a data processing chain associated with radargrams. It comprises preprocessing, hyperbola enhancing, hyperbola detection and localization, and parameter extraction. Additional parameters related to the GPR system such as the frequency band and the polarization bring data sets additional information that need to be exploited. Presently, the algorithms have been applied step by step on synthetic and experimental data. The results help to guide future developments in signal processing for quantitative parameter estimation.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 3; 55-68
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Improved CSE with DLS-MMSE Criteria in TH-UWB System
Autorzy:: Djebbari, Ali
Elahmar, Sid Ahmed
Powiązania:: https://bibliotekanauki.pl/articles/2058501.pdf
Data publikacji:: 2022
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: channel shortening equalizer
inter-symbol interferences
rake receiver
time hopping
ultra-wide band
ZF-MMSE
Opis:: This article presents a study on the use of deter ministic least squares criteria combined with the minimum mean square error method for the purpose of computing filter coefficients of the channel shortening equalizer. This method is well known to alleviate inter-symbol interference in time hopping UWB systems. The validity of this method is applied to shorten the impulse response of the effective UWB channels and, therefore, reduce the complexity of the rake receiver. Results show a very promising advantage compared to partial rake (P-Rake), selective-rake (S-Rake) and optimal maximum shortening signal-to-noise ratio methods.
Źródło:: Journal of Telecommunications and Information Technology; 2022, 1; 93--98
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Fading Channel Prediction for 5G and 6G Mobile Communication Systems
Autorzy:: Soszka, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/2055227.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: 5G
6G
channel prediction
channel state information
sub-6 GHz
millimetre-wave
neural network
artificial intelligence
narrowband
wide band
ultra wide band
Opis:: Nowadays, there is a trend to employ adaptive solutions in mobile communication. The adaptive transmission systems seem to answer the need for highly reliable communication that serves high data rates. For efficient adaptive transmission, the future Channel State Information (CSI) has to be known. The various prediction methods can be applied to estimate the future CSI. However, each method has its bottlenecks. The task is even more challenging while considering the future 5G/6G communication where the employment of sub-6 GHz and millimetre waves (mmWaves) in narrow-band, wide-band and ultra-wide-band transmission is considered. Thus, author describes the differences between sub-6 GHz/mmWave and narrow-band/wide-band/ultra-wide-band channel prediction, provide a comprehensive overview of available prediction methods, discuss its performance and analyse the opportunity to use them in sub-6 GHz and mmWave systems. We select Long Short-Term Memory Recurrent Neural Network (RNN) as the most promising technique for future CSI prediction and propose optimising two of its parameters - the number of input features, which was not yet considered as an opportunity to improve the performance of CSI prediction, and the number of hidden layers.
Źródło:: International Journal of Electronics and Telecommunications; 2022, 68, 1; 153--160
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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