Results 21 to 30 of about 155,552 (273)

Wideband Dipole Antenna

open access: yesBulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics, 2016
Войтович Николай Иванович, д-р техн. наук, профессор, заведующий кафедрой конструирования и производства радиоаппаратуры, Южно-Уральский государственный университет, г. Челябинск; voytovichni@mail.ru. Ершов Алексей Валентинович, канд. техн. наук, доцент кафедры конструирования и производства радиоаппаратуры, Южно-Уральский государственный университет ...
VOYTOVICH N.I., ERSHOV A.V.
openaire   +4 more sources

Experimental study of on-body radio channel performance of a compact ultra wideband antenna [PDF]

open access: yes, 2015
In this paper, on-body radio channel performance of a compact ultra wideband (UWB) antenna is investigated for body-centric wireless communications.
Abbasi, Qammer H.   +3 more
core   +1 more source

Fully Conventional Anchor-Free Siamese Networks for Object Tracking

open access: yesIEEE Access, 2019
Siamese network have been extensively applied in the tracking field because of its huge speed advantage and great precision performance in solving the tracking problems. In this paper, we propose an efficient framework for real-time object tracking which
Guang Han   +4 more
doaj   +1 more source

Joint Estimation of Azimuth and Distance for Far-Field Multi Targets Based on Graph Signal Processing

open access: yesRemote Sensing, 2022
Target position estimation is one of the important research directions in array signal processing. In recent years, the research of target azimuth estimation based on graph signal processing (GSP) has sprung up, which provides new ideas for the Direction
Kefei Liao   +3 more
doaj   +1 more source

Feature Fusion and Adversary Occlusion Networks for Object Detection

open access: yesIEEE Access, 2019
Current object detection techniques have difficulties in detecting small objects and a low level of accuracy in detecting occluded objects. To solve these problems, this paper proposes an object detection framework named FFAN which is based on Faster R ...
Guang Han   +4 more
doaj   +1 more source

Nonlinear voltage dependence of shot noise [PDF]

open access: yes, 1999
The current noise in a multi-probe mesoscopic conductor can have a nonlinear dependence on the strength of driving bias voltage. This paper presents a theoretical formulation for the nonlinear noise spectra.
A. Kumar   +38 more
core   +2 more sources

Ultra-Wideband Radio

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Summary: The application of ultra-wideband (UWB) technology to low-cost short-range communications presents unique challenges to the communications engineer. The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels are explored, and their effects on UWB hardware design are illustrated.
Pozar David M   +2 more
openaire   +2 more sources

Adapting Dynamic Appearance for Robust Visual Tracking

open access: yesIEEE Access, 2017
This paper designs a robust discriminative tracking method based on correlation filter and key point matching, the highlight of which is the ability to adapt appearance changes.
Guang Han   +4 more
doaj   +1 more source

Rayleigh wave manipulation based on phase shift between two periodic surface corrugations

open access: yesResults in Physics, 2023
The propagation of Rayleigh waves along solid surfaces has attracted great attention due to its ubiquity in seismic waves, non-destructive evaluation, acoustic surface wave devices, and so on.
Qiao-Mu Zhang   +6 more
doaj   +1 more source

Tunable Terahertz Absorber Based on Bulk-Dirac-Semimetal Metasurface

open access: yesIEEE Photonics Journal, 2018
We propose a tunable terahertz (THz) absorber design that utilizes a bulk Dirac semimetal (BDS)-based metasurface. The absorber consists of a BDS film with a periodic ring slot, dielectric layer, and fully reflective gold mirror.
Yannan Jiang   +3 more
doaj   +1 more source

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