Results 31 to 40 of about 37,537 (191)
Wideband Waveform Design for Robust Target Detection
, 2014 Future radar systems are expected to use waveforms of a high bandwidth, where the main advantage is an improved range resolution. In this paper, a technique to design robust wideband waveforms for a Multiple-Input-Single-Output system is developed.
Panahi, Ashkan +2 more
core +1 more source
Joint distribution of polarization-multiplexed UWB and WiMAX radio in PON [PDF]
, 2009 In this paper, the feasibility of the joint distribution of ultra-wideband (UWB) and WIMAX wireless using polarization multiplexing as a coexistence technique is proposed and experimentally demonstrated within the framework of passive optical networks ...
Llorente, Roberto +3 more
core +3 more sources
An Ultra-Wideband Frequency System for Non-Destructive Root Imaging
Sensors, 2018 Understanding the root system architecture of plants as they develop is critical for increasing crop yields through plant phenotyping, and ultra-wideband imaging systems have shown potential as a portable, low-cost solution to non-destructive imaging ...
Thomas Truong, Anh Dinh, Khan Wahid
doaj +1 more source
A time domain spherical near-field measurement facility for UWB antennas employing a hardware gating technique [PDF]
Advances in Radio Science, 2010 A spherical near-field antenna measurement facility employing a time domain hardware gating technique is presented. On-off keyed sinusoidal impulses are used as stimuli requiring wideband antennas with a bandwidth in excess of 400 MHz.
M. D. Blech +6 more
doaj +1 more source
Application of UWB technology in accurate personnel positioning system
Meikuang Anquan, 2021 In this paper, through the research of ultra wideband wireless carrier communication technology（ＵＷＢ）, using TOF time difference positioning method, using the distance from the signal source to each monitoring point to determine the location of the ...
CHANG Lin
doaj +1 more source
Dynamic Spectrum Sharing in the Age of Millimeter Wave Spectrum Access
, 2020 Next-generation wireless networks are facing spectrum shortage challenges, mainly due to, among other factors, the projected massive numbers of IoT connections and the emerging bandwidth-hungry applications that such networks ought to serve.
Hamdaoui, Bechir +2 more
core +1 more source
Радіоелектронні і комп'ютерні системи, 2021 Mathematical models of the fields of stochastic ultra-wideband signals that are necessary for solving problems of aperture synthesis of images using active radar methods are presented.
Valeriy Volosyuk +6 more
doaj +1 more source
Narrowband Registration of Ultra-Wideband Signal
Journal of Physics: Conference Series, 2016 The research of various parameters influence on the Fresnel reflector focusing properties in particular spatial sizes, the focal point position, etc. is conducted. The version of using a flat Fresnel reflector for receiving ultra-wideband signals with the use of Wiener filtering is suggested.
A V Kamenev +3 more
openaire +1 more source
Design of a tunable multi-band differential LC VCO using 0.35 mu m SiGe BiCMOS technology for multi-standard wireless communication systems [PDF]
, 2009 In this paper, an integrated 2.2-5.7GHz multi-band differential LC VCO for multi-standard wireless communication systems was designed utilizing 0.35 mu m SiGe BiCMOS technology. The topology, which combines the switching inductors and capacitors together
Bakkaloglu, Ahmet Kemal +8 more
core +1 more source
A wideband noise-canceling CMOS LNA exploiting a transformer [PDF]
, 2006 A broadband LNA incorporating single-ended to differential conversion, has been successfully implemented using a noise-canceling technique and a single on-chip transformer. The LNA achieves a high voltage gain of 19dB, a wideband input match (2.5-4.0 GHz)
Blaakmeer, Stephan C. +3 more
core +5 more sources