Zobrazeno 1 - 10
of 1 226
pro vyhledávání: '"MA, Jianjun"'
The propagation of millimeter wave (MMW) and sub-terahertz (THz) signals through plasma sheaths is a critical concern for maintaining communication with hypersonic vehicles, yet the impact of complex plasma structures on these high-frequency channels
Externí odkaz:
http://arxiv.org/abs/2407.18476
The calibration of weather radar for detecting meteorological phenomena has advanced rapidly, aiming to enhance accuracy. Utilizing an unmanned aerial vehicle (UAV) equipped with a suspended metal sphere introduces an efficient calibration method by
Externí odkaz:
http://arxiv.org/abs/2407.04719
Autor:
Li, Da, Li, Peian, Zhao, Jiabiao, Liang, Jianjian, Liu, Jiacheng, Liu, Guohao, Lei, Yuanshuai, Liu, Wenbo, Deng, Jianqin, Liu, Fuyong, Ma, Jianjun
Unmanned Aerial Vehicle (UAV) assisted terahertz (THz) wireless communications have been expected to play a vital role in the next generation of wireless networks. UAVs can serve as either repeaters or data collectors within the communication link, t
Externí odkaz:
http://arxiv.org/abs/2404.02663
Autor:
Cui, Jiayuan, Li, Da, Zhao, Jiabiao, Liu, Jiacheng, Liu, Guohao, He, Xiangkun, Su, Yue, Song, Fei, Li, Peian, Ma, Jianjun
The dielectric properties of environmental surfaces, including walls, floors and the ground, etc., play a crucial role in shaping the accuracy of terahertz (THz) channel modeling, thereby directly impacting the effectiveness of communication systems.
Externí odkaz:
http://arxiv.org/abs/2404.02661
Non-line-of-sight (NLOS) data transmission through surface reflection is pivotal for enhancing the reach and efficiency of terahertz (THz) communication systems. However, this innovation also introduces significant eavesdropping risks, exacerbated by
Externí odkaz:
http://arxiv.org/abs/2403.01074
Autor:
Liu, Guohao, He, Xiangkun, Zhao, Jiabiao, Li, Da, Liang, Hong, Sun, Houjun, Mittleman, Daniel M., Ma, Jianjun
In the evolving domain of wireless communication, the investigation on terahertz (THz) frequency spectrum, spanning 0.1 to 10 THz, has become a critical focus for advancing ultra-high-speed data transmission technologies. The effective deployment of
Externí odkaz:
http://arxiv.org/abs/2402.01119
Autor:
Li, Da, Liu, Wenbo, Wei, Menghan, Liu, Jiacheng, Liu, Guohao, Li, Peian, Sun, Houjun, Ma, Jianjun
In the evolving landscape of terahertz communication, the behavior of channels within indoor environments, particularly through glass doors, has garnered significant attention. This paper comprehensively investigates terahertz channel performance und
Externí odkaz:
http://arxiv.org/abs/2311.07924
Autor:
Liu, Jiacheng, Li, Da, Liu, Guohao, Qiao, Yige, Wei, Menghan, Zhang, Chengyu, Song, Fei, Ma, Jianjun
In the field of integrated sensing and communication, there's a growing need for advanced environmental perception. The terahertz (THz) frequency band, significant for ultra-high-speed data connections, shows promise in environmental sensing, particu
Externí odkaz:
http://arxiv.org/abs/2311.08599
The advancement of millimeter wave and terahertz technologies have revolutionized high speed wireless networks and precise tracking systems. These technologies offer unique penetration capabilities in specific scenarios, significantly enhancing the c
Externí odkaz:
http://arxiv.org/abs/2311.07855
Publikováno v:
Zhongguo quanke yixue, Vol 27, Iss 09, Pp 1102-1108 (2024)
Background The diagnosis of Parkinson disease (PD) is mainly based on clinical symptoms, and there is a lack of objective methods for correct diagnosis. At present, there have been studies on retinal structural changes as a biomark for early diagnosi
Externí odkaz:
https://doaj.org/article/29bcb7b1d6c040958131b5c144e12fe8