Results 41 to 50 of about 2,207,221 (306)
Performance Enhancement of Decision Directed SNR Estimation by Correction Scheme of SNR Estimation Error [PDF]
The Journal of Korea Navigation Institute, 2012 In this paper, the SNR estimation error of Decision Directed SNR estimation method in AWGN is investigated, which uses samples received in reference decision region. In communication system receiver, when SNR estimation scheme using error vectors between ideal sample points and received sample points of reference region is adopted, the samples contain ...
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Perceptually Motivated Wavelet Packet Transform for Bioacoustic Signal Enhancement [PDF]
, 2008 A significant and often unavoidable problem in bioacoustic signal processing is the presence of background noise due to an adverse recording environment. This paper proposes a new bioacoustic signal enhancement technique which can be used on a wide range
Cohen I. +8 more
core +2 more sources
, 2011 We study the information rates of non-coherent, stationary, Gaussian, multiple-input multiple-output (MIMO) flat-fading channels that are achievable with nearest neighbour decoding and pilot-aided channel estimation.
Asyhari, A. Taufiq +2 more
core +1 more source
Improved SNR estimation for BPSK and QPSK signals
Electronics Letters, 2009 A novel non-data-aided SNR estimation technique for BPSK and QPSK modulations in complex additive white Gaussian noise (AWGN) is proposed. It uses the constant amplitude property of in-phase and quadrature components of these modulations to achieve an improved performance.
Evans, BG, Ijaz, I, Awoseyila A
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Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm
Tongxin xuebao, 2006 As a necessary input parameter for MAP decoding algorithm,SNR was normally obtained from the channel estimation unit.Corresponding research indicated that SNR estimation deviation degraded significantly the performance of Turbo decoding.MAP decoding ...
WAN Ke, FAN Ping-zhi
doaj +2 more sources
Bioinspired auditory sound localisation for improving the signal to noise ratio of socially interactive robots [PDF]
, 2006 In this paper we describe a bioinspired hybrid architecture for acoustic sound source localisation and tracking to increase the signal to noise ratio (SNR) between speaker and background sources for a socially interactive robot's speech recogniser system.
Erwin, Harry +2 more
core +2 more sources
Non-Data-Aided Parameter Estimation in an Additive White Gaussian Noise Channel
, 2005 Non-data-aided (NDA) parameter estimation is considered for binary-phase-shift-keying transmission in an additive white Gaussian noise channel. Cramer-Rao lower bounds (CRLBs) for signal amplitude, noise variance, channel reliability constant and bit ...
Brannstrom, Fredrik, Rasmussen, Lars K.
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Reduced Muscular Carnosine in Proximal Myotonic Myopathy—A Pilot 1H‐MRS Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Myotonic dystrophy type 2 (proximal myotonic myopathy, PROMM) is a progressive multisystem disorder with muscular symptoms (proximal weakness, pain, myotonia) and systemic manifestations such as diabetes mellitus, cataracts, and cardiac arrhythmias.
Alexander Gussew +11 more
wiley +1 more source
Signal-to-noise ratio estimation for M-QAM signals in η−μand κ−μfading channels
EURASIP Journal on Advances in Signal Processing, 2019 In this paper, signal-to-noise ratio (SNR) estimation is carried out by the method of moments (MOM) for fading channels modeled by probability distributions η−μ and κ−μ, considering M-ary quadrature amplitude modulation (M-QAM) with constellation energy ...
Wamberto José Lira de Queiroz +3 more
doaj +1 more source
NDA Waveform Estimation in the Low-SNR Regime [PDF]
IEEE Transactions on Signal Processing, 2007 This correspondence addresses the problem of nondata-aided waveform estimation for digital communications. Based on the unconditional maximum likelihood criterion, the main contribution of this correspondence is the derivation of a closed-form solution to the waveform estimation problem in the low signal-to-noise ratio regime.
López Salcedo, José Antonio +1 more
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