Results 31 to 40 of about 38,067 (289)
Физика волновых процессов и радиотехнические системыBackground. One of the urgent tasks of processing ultra-wideband signals is the assessment of their frequency parameters in complex signal-noise conditions. Aim.
The Tuan Doan, Pavel A. Trifonov
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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
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Quality measurements of an UWB reduced-size CPW-fed aperture antenna [PDF]
, 2015 The paper presents a characterization of a compact co-planar waveguide (CPW)-fed slot loaded low return loss planar printed antenna designed for wireless communication and ultra-wideband (UWB) applications. Following a review of the antenna design, which
Ammar, M. +5 more
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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
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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
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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
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An Ultra-fast DOA Estimator with Circular Array Interferometer Using Lookup Table Method [PDF]
, 2015 The time-consuming phase ambiguity resolution makes the uniform circular array (UCA) interferometer not suitable for real-time direction-of-arrival (DOA) estimation. This paper introduces the lookup table (LUT) method to solve this problem.
Huang, J. J. +4 more
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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
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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
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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
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