Zobrazeno 1 - 10
of 1 053
pro vyhledávání: '"channel impulse response"'
Publikováno v:
Geo-spatial Information Science, Vol 27, Iss 4, Pp 1162-1181 (2024)
The Ultra-Wideband (UWB) Location-Based Service is receiving more and more attention due to its high ranging accuracy and good time resolution. However, the None-Line-of-Sight (NLOS) propagation may reduce the ranging accuracy for UWB localization sy
Externí odkaz:
https://doaj.org/article/2821680df965468cb144f2c045406a47
Publikováno v:
ETRI Journal, Vol 46, Iss 3, Pp 392-403 (2024)
Even though generalized frequency division multiplexing is an alternative waveform method expected to replace the orthogonal frequency division multiplexing in the future, its implementation must alleviate channel effects. Least-squares (LS), a low-c
Externí odkaz:
https://doaj.org/article/e1e547e3c0964339b64bbff8ecc97796
Autor:
Ammar Fahem Majeed, Rashidah Arsat, Muhammad Ariff Baharudin, Nurul Mu'Azzah Abdul Latiff, Abbas Albaidhani
Publikováno v:
IEEE Access, Vol 12, Pp 179431-179448 (2024)
The accurate distinction between line-of-sight (LOS) and non-line-of-sight (NLOS) propagation channels is paramount for precise distance measurement within ultra-wideband (UWB) indoor localization systems. In complex and dynamic environments, such as
Externí odkaz:
https://doaj.org/article/5fffb83ff3d44c47a54ebb170d0aece1
Autor:
Radek Zavorka, Tomas Mikulasek, Josef Vychodil, Jiri Blumenstein, Aniruddha Chandra, Hussein Hammoud, Jan M. Kelner, Cezary Ziolkowski, Thomas Zemen, Christoph Mecklenbrauker, Ales Prokes
Publikováno v:
IEEE Access, Vol 12, Pp 144738-144749 (2024)
The deployment of wireless systems in millimeter wave relies on a thorough understanding of electromagnetic wave propagation under various weather conditions and scenarios. In this study, we characterize millimeter wave propagation effects from measu
Externí odkaz:
https://doaj.org/article/1c756efe57e44393be1682c2978448bf
Publikováno v:
IEEE Access, Vol 12, Pp 138610-138616 (2024)
This paper proposes a compact ultra-wideband (UWB) direction-finding antenna with a single-radiator multiple-port (SRMP) design. The proposed antenna consists of a single-radiator, self-decoupling feed structure (SDFS), and via walls considering the
Externí odkaz:
https://doaj.org/article/f81f4b5ad5094fa0a25b1cf4cc5e0444
Publikováno v:
IEEE Access, Vol 12, Pp 89947-89956 (2024)
Physical layer secret key generation is a novel research direction that has attracted many researchers in recent years due to its low computational capacity and ability to obtain information-theoretic security. In this paper, we propose two methods b
Externí odkaz:
https://doaj.org/article/af85ff52bab44ca2b3f7409d3178b2bd
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7609 (2024)
Ultra-Wideband (UWB) technology is crucial for indoor localization systems due to its high accuracy and robustness in multipath environments. However, Non-Line-of-Sight (NLoS) conditions can cause UWB signal distortion, significantly reducing positio
Externí odkaz:
https://doaj.org/article/fb274967798a4a4d984ebb63f659cd0b
Autor:
Yanheng Qiu, Xiaomin Chen, Kai Mao, Xuchao Ye, Hanpeng Li, Farman Ali, Yang Huang, Qiuming Zhu
Publikováno v:
Drones, Vol 8, Iss 5, p 191 (2024)
With the fast development of unmanned aerial vehicles (UAVs), reliable UAV communication is becoming increasingly vital. The channel knowledge map (CKM) is a crucial bridge connecting the environment and the propagation channel that may visually depi
Externí odkaz:
https://doaj.org/article/e3b613eadfa34b9b836366adb62aef5b
Publikováno v:
Sensors, Vol 24, Iss 8, p 2428 (2024)
Among other methods, UWB-based multi-anchor localization systems have been established for industrial indoor localization systems. However, multi-anchor systems have high costs and installation effort. By exploiting the multipath propagation of the U
Externí odkaz:
https://doaj.org/article/bf072deaa501437287e11ca00ec7694f
Autor:
Asif Iqbal, Micheal Drieberg, Varun Jeoti, Azrina Abd Aziz, Goran M. Stojanovic, Mitar Simic, Nazabat Hussain
Publikováno v:
IEEE Access, Vol 11, Pp 103333-103349 (2023)
The emerging wireless applications are facing new challenges in combating frequency congestion. As a result, the opportunistic utilization of available frequency spectrum and channel bonding is becoming increasingly common in new wireless standards.
Externí odkaz:
https://doaj.org/article/78902444217d49b5815134a588c3782f