Morteza Ziyadi, Amirhossein Mohajerin-Ariaei, Mohammad Reza Chitgarha, Salman Khaleghi, Ahmed Almaiman, Yinwen Cao, Amin Abouzaid, Bishara Shamee, 1 Moshe Tur, Loukas Paraschis, Carsten Langrock, Martin M. Fejer, Joseph D. Touch, and Alan E. Willner 1 Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA 2 Information Sciences Institute, Uni...

NE Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK TDL Genetics, The Doctors Laboratory, London, UK UCL Institute of Child Health, London, UK University College Hospital NHS Foundation Trust, London, UK Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK *Correspondence to: Lyn S. Chitty. E-mail: [email protected]...

This paper is a review of methods and techniques used for precise measurement of time intervals (TIs) or precise conversion of TIs to digital data. The following methods are described: the counter method and averaging, time stretching, time-to-amplitude conversion followed by analogue-to-digital conversion, the Vernier method, conversion utilizing tapped delay lines, and interpolation methods. ...

This paper demonstrates the performance of Ultra Wideband (UWB) systems in the Stochastic Tapped Delay Line (STDL) model of the UWB channel with RAKE receiver. System models are based on Direct Sequence Code Division Multiple Access (DS-CDMA) principle. The system has been studied in presence of multiple user interference and Gaussian noise. During the analysis, various types of narrow, sub-nan...

Due to the low power spectral properties of ultra wideband (UWB) signals, the technology is suitable to be used, e.g., in covert military applications. The open literature lacks of UWB radio channel models that are generated for outdoor use. This paper describes the radio channel measurement campaign carried out to increase the knowledge of the UWB propagation mechanisms in typical Finnish fore...

We report a case of multiple sclerosis-associated fulminant tumefactive demyelinating lesion (TDL) with the special feature of delayed humoral immune response. Plasma exchange (PE) yielded significant benefit in two consecutive steroid-unresponsive relapses, while signs of an intrathecal B-cell response were only present 2 years later at the second relapse. Remission was achieved and sustained ...

We establish a statistical model for the ultra-wide bandwidth (UWB) indoor channel based on an extensive measurement campaign in a typical modern office building with 2-ns delay resolution. The approach is based on the investigation of the statistical properties of the multipath profiles measured in different rooms over a finely spaced measurement grid. The analysis leads to the formulation of ...

The existing derivations of conventional fast RLS adaptive filters are intrinsically dependent on the shift structure in the input regression vectors. This structure arises when a tapped-delay line (FIR) filter is used as a modeling filter. In this paper, we show, unlike what original derivations may suggest, that fast fixed-order RLS adaptive algorithms are not limited to FIR filter structures...

We evaluate the link performance of an ultra-wide band (UWB) system using reduced-complexity Rake receivers, which are based on either partial combining (called PRake) or selective combining (called SRake). The first is suboptimum and combines the first arriving multipath components, while the second combines the strongest multipath components. We use a statistical tapped-delay-line channel mod...