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Analysis of UWB Systems for Synchronization and Fine Timing
2020
International journal of recent technology and engineering
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Ultra-Wide Band (UWB) technology due to its high speed, data rate and multipath immune characteristics is one of the promising solutions for communication systems. ...
This paper explores the different types of UWB receivers which are Transmitted Reference (TR) UWB Receivers and Frequency Shifted Reference (FSR) UWB Receiver focusing on the synchronization and timing ...
for applications with low data rates [17] . ...
doi:10.35940/ijrte.f7661.038620
fatcat:jkuv36tiuvfnblu4o55ko42ba4
Wideband, Multiband, Tunable, and Smart Antenna Systems for Mobile and UWB Wireless Applications
2013
International Journal of Antennas and Propagation
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Acknowledgments The editors would like to express their gratitude to the authors and the anonymous reviewers for their contributions to this special issue. ...
., the authors, firstly, propose an innovative radiating systems based on the metamaterial technology for global navigation satellite system (GNSS) applications in radio frequency interference conditions ...
Introduction With the advent of high data rate 3G and 4G wireless communication systems and the app-based use paradigm, wireless connectivity through multiple air interfaces has become a common requirement ...
doi:10.1155/2013/254807
fatcat:ihyzszvg3fcgxej6m6335vwrzm
Hybrid coherent and frequency-shifted-reference ultrawideband radio
2009
Physical Communication
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Zhang, Slightly frequency-shifted-reference ultrawideband (UWB) radio, IEEE Trans. ...
In particular, we consider a TR scheme that employs slightly frequency-shifted-reference (FSR) signals [D.L. Goeckel, Q. ...
In order to avoid the delay unit, an alternative, called slightly frequency-shifted reference (FSR), was recently proposed by one of us [15] . ...
doi:10.1016/j.phycom.2009.06.003
fatcat:xms3jgc7yndenfjnaroerwttl4
A Simple Adaptive Beamformer for Ultrawideband Wireless Systems
2006
2006 IEEE International Conference on Ultra-Wideband
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It is shown that this simple architecture can provide useful interference rejection and range extension capabilities for high data-rate UWB wireless networks. ...
This paper introduces a simple beamformer for ultrawideband (UWB) wireless networks. The architecture consists of a two-element antenna array, a phase shifter and a signal combiner. ...
INTRODUCTION Ultrawideband (UWB) wireless systems have attracted much attention in recent years as a means of providing a short range, high data rate wireless solution [1, 2] . ...
doi:10.1109/icu.2006.281592
fatcat:cg4mwcsaivbonfuto36k2epxly
Optimized Irregular Variable Length Coding Design for Iteratively Decoded UltraWideBand Time-Hopping Spread-Spectrum Impulse Radio
2009
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
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The proposed scheme can achieve near-zero bit error ratio at low SNR values. This IVLC based scheme provides a gain of up to 0.45 dB over the identical-rate single class VLC based scheme. ...
A number of component Variable Length Coding (VLC) codebooks with different coding rates are being utilized by IVLC scheme for encoding specific fractions of the input source symbol stream. ...
Heavy digital imaging and multimedia applications result in the requirements of high data rate wireless links. ...
doi:10.1109/vetecs.2009.5073751
dblp:conf/vtc/RiazBMNCH09
fatcat:drwhlibk6vfhfk7aevhito2w34
Rapidly Tunable Dual-Comb RF Photonic Filter for Ultrabroadband RF Spread Spectrum Applications
2016
IEEE transactions on microwave theory and techniques
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We demonstrate a rapidly frequency-tunable radio frequency (RF) filter using microwave photonics technology for ultrawideband RF spread spectrum applications. ...
The low control voltage (ca. 1 V) and the linear relationship between control voltage and passband frequency facilitate agile frequency tuning for processing of signals with time-varying frequency content ...
Xue for helpful technical discussions. ...
doi:10.1109/tmtt.2016.2599162
fatcat:jkfut3j5znh2fbyasyu2bxduxi
Differential UWB Communications With Digital Multicarrier Modulation
2008
IEEE Transactions on Signal Processing
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In this paper, we investigate digital multicarrier differential (MCD) modulation and demodulation schemes for UWB communications. ...
We also show that our approach enables variable data rates, and remains operational even in the presence of severe interframe interference (IFI). ...
Goeckel for his comments and suggestions that helped improve the quality of this paper. ...
doi:10.1109/tsp.2007.901656
fatcat:xtycffcpvzgdnmn3tz6jnj4qpe
Differential UWB Communications with Digital Multi-Carrier Modulation
2006
2006 IEEE International Conference on Ultra-Wideband
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In this paper, we investigate digital multicarrier differential (MCD) modulation and demodulation schemes for UWB communications. ...
We also show that our approach enables variable data rates, and remains operational even in the presence of severe interframe interference (IFI). ...
Goeckel for his comments and suggestions that helped improve the quality of this paper. ...
doi:10.1109/icu.2006.281514
fatcat:kgme3f4vijaypfw7x5aekxoj3a
Multi-Differential Slightly Frequency-Shifted Reference Ultra-wideband (UWB) Radio
2006
2006 40th Annual Conference on Information Sciences and Systems
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The frequency-shifted reference (FSR) ultrawideband (UWB) communication scheme has been recently proposed by the authors. ...
The key idea of the FSR-UWB system is to employ a reference signal that is slightly shifted in frequency from the data-bearing signal, and it has been shown that this results in a very simple receiver ...
Thus, for low data rate applications, this frequency shift is well below the coherence bandwidth of the channel, and, thus reference and data signals that are orthogonal over a symbol period go through ...
doi:10.1109/ciss.2006.286542
fatcat:4ocxutfvqfgbfh5ikxopp2k76u
Multiple-Access Ultrawideband Communications Using Frequency Modulation of Quasi-Orthogonal Impulse-Like Waveforms
2020
IET Communications
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Comparison between the bit error performance of impulse frequency shift keying, impulse phase shift keying, pulse position, and binary phase shift keying modulation schemes is presented too. ...
M-ary UWB impulse frequency shift keying In [17] two periodic impulse waveforms were introduced that have the following expressions: ...
For example, the high-resolution capabilities and low design cost suggest UWB systems as a solution for the design of high accuracy-low cost location-based services for indoor applications [12] [13] [ ...
doi:10.1049/iet-com.2018.6100
fatcat:nmi7tmuldnbalkhr76kbu5zqva
A compact printed triangular monopole antenna for ultrawideband applications
2014
Microwave and optical technology letters (Print)
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Due to numerous features, such as high-speed data rate, low power consumption, small emission power, and low cost, UWB system has gained much attraction in the recent years. ...
In this communication, a novel printed triangular monopole antenna (PTMA) with enhanced bandwidth is proposed for UWB applications. ...
doi:10.1002/mop.28290
fatcat:crbhnitunnfyhjmevwho2nc6ky
A confocal microwave imaging algorithm for breast cancer detection
2001
IEEE Microwave and Wireless Components Letters
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We present a computationally efficient and robust image reconstruction algorithm for breast cancer detection using an ultrawideband confocal microwave imaging system. ...
Index Terms-Breast cancer detection, FDTD, microwave imaging, ultrawideband radar. ...
Kelcz for providing the breast MRI data, Dr. C. Furse for helpful discussions on creating MRIderived FDTD models, and Ms. E. Fear and Dr. M. Stuchly for their support of CMI. ...
doi:10.1109/7260.915627
fatcat:zlzkon6jsreivj4uj43ectxc64
Ambiguity functions of laser-based chaotic radar
2004
IEEE Journal of Quantum Electronics
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By having the features of both ultrawideband radar and random signal radar, the chaotic oscillation waveform of the CRADAR system with the OI scheme is shown to possess the advantages of high range resolution ...
, excellent ECCM capability, ideal thumbtack-like ambiguity function, and uncoupled range and range rate resolution functions. ...
Unlike the ridges seen in linear frequency modulated and stepped frequency radar systems which are due to the coupling between the Doppler frequency shift and the modulation frequency generated, the skewness ...
doi:10.1109/jqe.2004.836811
fatcat:xaybtrbuyje4xoddshyokliwba
Spatially Resolved Fast-Time Vibrometry Using Ultrawideband FMCW Radar Systems
2020
IEEE transactions on microwave theory and techniques
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This article introduces a signal processing chain for ultrawideband frequency-modulated continuous-wave (FMCW) radar. ...
It uses fast-time measurement to evaluate the instantaneous phase, thus allowing for spatially resolved sensing of multiple simultaneously vibrating radar targets, faster than the chirp rate. ...
Mayr for their valuable comments and suggestions. ...
doi:10.1109/tmtt.2020.3038080
fatcat:sx56dg4ta5auphq5ao4jt4nm6m
Performance Comparison of TR and FSRUWB System Using Particle Filter: Effects of Frequency, Data Rate, Multi-Path and Multi-Channel Communication
2022
International Journal on Recent and Innovation Trends in Computing and Communication
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In this study, we introduced a novel scheme based on Transmitted References (TR) and Frequency Shifted Reference (FSR) for ultra-wideband (UWB) system. ...
By taking into account tracking loop-based particle filtering together with a data collecting approach for single and multi-path channel situations, the suggested method is an enhanced model. ...
This shift in the frequency is less than the frequency coherence of channels; hence, the references are compatible with low data rate applications as desired.
III. ...
doi:10.17762/ijritcc.v10i2s.5943
fatcat:y5t7bhu7ejaqxazic7k6jqojpe
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