نتایج جستجو برای: آشکارساز mrc

تعداد نتایج: 5783  

2013
Rashid A. Fayadh F. Malek Hilal A. Fadhil Norshafinash Saudin

At receiving high data rate in ultra wideband (UWB) technology for many users, there are multiple user interference and inter-symbol interference as obstacles in the multi-path reception technique. Since the rake receivers were designed to collect many resolvable paths, even more than hundred of paths. Rake receiver implementation structures have been proposed towards increasing the complexity ...

2008
August Krogh Homer Smith Ancel Keys David H. Evans Bodil Schmidt-Nielsen

Evans DH. Teleost fish osmoregulation: what have we learned since August Krogh, Homer Smith, and Ancel Keys. Am J Physiol Regul Integr Comp Physiol 295: R704– R713, 2008. First published June 4, 2008; doi:10.1152/ajpregu.90337.2008.—In the 1930s, August Krogh, Homer Smith, and Ancel Keys knew that teleost fishes were hyperosmotic to fresh water and hyposmotic to seawater, and, therefore, they w...

Journal: :IET Communications 2014
Mandar Kulkarni Lovish Choudhary Brijesh Kumbhani Rakhesh S. Kshetrimayum

In this study, bit error rate (BER) performance of multiple input multiple output (MIMO) systems employing transmit antenna selection with maximal ratio combining (TAS/MRC) and orthogonal space time block codes (OSTBC) is analysed and compared. Analysis has been done for several modulation schemes in equicorrelated Rayleigh fading channels. Novel infinite series expressions for BER of TAS/MRC a...

2004
W. H. Lam

This paper derives analytically some simple closed form expressions for the average symbol error rate (SER) of M-ary phase shift keying (MPSK), M-ary differential phase shift keying (MDPSK) and noncoherent Mary frequency shift keying (MFSK) over a Nakagami-m fading channel with Lfold maximal ratio combining (MRC) and selection combining (SC) space diversity receptions. Numerical results demonst...

2007
Edward S Morris Vanessa Rowe Helen Bofinger Renae Skoczylas Neil Raffelt Olivier Fahy Angela C Burman Tatjana D Banovic Rachel D Kuns Andrew D Clouston Amanda C Stanley Tatjana Banovic Shaun R McColl Christian R Engwerda Kelli PA McDonald Geoffrey R Hill

word count: 141 Manuscript word count: 4,785 Running title: IFNγ and GVHD. This work was supported in part by grants from the Queensland Cancer Fund and NH&MRC. CRE and KPAM are NH&MRC RD Wright Fellows. GRH is an NH&MRC Practitioner Fellow. Corresponding author: Dr Geoffrey Hill, Bone Marrow Transplantation Laboratory, Queensland Institute of Medical Research, 300 Herston Rd, QLD 4006, AUSTRAL...

2001
Robert P. Sherman

Han’s maximum rank correlation (MRC) estimator is shown to be √ n-consistent and asymptotically normal. The proof rests on a general method for determining the asymptotic distribution of a maximization estimator, a simple U-statistic decomposition, and a uniform bound for degenerate U-processes. A consistent estimator of the asymptotic covariance matrix is provided, along with a result giving t...

1997
S. Tateesh S. A. Atungsiri Ahmet M. Kondoz

This paper investigates the bene ts of link adaptation according to the propagation conditions using multi-rate vocoders and channel coders. A multi-rate source and channel coding (MRC) system trades-o the source codec bit rate against channel codec bit rate according to the prevailing channel conditions. MRC systems continuously recon gure transmission resources to optimally combat channel deg...

2011
Diana Kuh Mary Pierce Judith Adams John Deanfield Ulf Ekelund Peter Friberg Arjun K Ghosh Nikki Harwood Alun Hughes Peter W Macfarlane Gita Mishra Denis Pellerin Andrew Wong Alison M Stephen Marcus Richards Rebecca Hardy

MRC Unit for Lifelong Health and Ageing, Research Department of Epidemiology and Public Health, University College London, London, UK, Clinical Radiology, Manchester Royal Infirmary, Oxford Road, Manchester, UK, Vascular Physiology Unit, Institute of Child Health, University College London, London, UK, MRC Epidemiology Unit, Cambridge, UK, Cardiovacular Institute, Sahlgrenska University Hospita...

2004
SEMION GUTMAN ALEXANDER G. RAMM

The Rayleigh conjecture on the representation of the scattered field in the exterior of an obstacle D is widely used in applications. However this conjecture is false for some obstacles. AGR introduced the Modified Rayleigh Conjecture (MRC), and in this paper we present successful numerical algorithms based on the MRC for various 2D and 3D obstacle scattering problems. The 3D obstacles include ...

2009
A. Downing D. Rueckert A. D. Edwards J. V. Hajnal

A. Downing, D. Rueckert, A. D. Edwards, and J. V. Hajnal Robert Steiner MRI Unit, Imaging Sciences Department, MRC Clinical Sciences Centre, Hammersmith Hospital, Imperial College London, London, United Kingdom, Visual Information Processing Group, Department of Computing, Imperial College London, London, United Kingdom, Department of Paediatrics, Imaging Sciences Department, MRC Clinical Scien...

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