Results 21 to 30 of about 36,429 (287)

Effective-SNR estimation for wireless sensor network using Kalman filter [PDF]

open access: yes, 2013
In many Wireless Sensor Network (WSN) applications, the availability of a simple yet accurate estimation of the RF channel quality is vital. However, due to measurement noise and fading effects, it is usually estimated through probe or learning based ...
Dai, Xuewu   +6 more
core   +1 more source

SNR Estimation in Linear Systems With Gaussian Matrices [PDF]

open access: yesIEEE Signal Processing Letters, 2017
This paper proposes a highly accurate algorithm to estimate the signal-to-noise ratio (SNR) for a linear system from a single realization of the received signal. We assume that the linear system has a Gaussian matrix with one sided left correlation.
Mohamed A. Suliman   +3 more
openaire   +3 more sources

On the effect of SNR and superdirective beamforming in speaker diarisation in meetings [PDF]

open access: yes, 2012
This paper examines the effect of sensor performance on speaker diarisation in meetings and investigates the use of more advanced beamforming techniques, beyond the typically employed delay-sum beamformer, for mitigating the effects of poorer sensor ...
Mike Lincoln   +5 more
core   +1 more source

Distance Estimate of Tycho’s SNR

open access: yesJournal of Physics: Conference Series, 2018
5 pages, 2 figures, conference PhysicA.SPb ...
Kozlova, A. V., Blinnikov, S. I.
openaire   +2 more sources

Significant Wave Height Estimation Using Multi-Satellite Observations from GNSS-R

open access: yesRemote Sensing, 2021
This study proposes a significant wave height (SWH) retrieval method based on multi-satellite observations using Global Navigation Satellite System Reflectometry (GNSS-R).
Lingyu Qin, Ying Li
doaj   +1 more source

NDA Waveform Estimation in the Low-SNR Regime [PDF]

open access: yesIEEE 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.
José A. Lopez-Salcedo, Gregori Vázquez
openaire   +2 more sources

On the influence of detection tests on deterministic parameters estimation [PDF]

open access: yes, 2006
In non-linear estimation problems three distinct regions of operation can be observed. In the asymptotic region, the Mean Square Error (MSE) of Maximum Likelihood Estimators (MLE) is small and, in many cases,close to the Cramer-Rao bound (CRB).
Chaumette, Eric   +5 more
core   +1 more source

An improved discrete Fourier transformation channel estimation algorithm with low complexity for orthogonal frequency division multiplexing‐based power line carrier communication systems

open access: yesIET Communications, 2023
Orthogonal frequency division multiplexing (OFDM) technology has been increasingly applied to power line carrier communication (PLC). Discrete Fourier Transformation (DFT)‐based channel estimation algorithm is suitable for OFDM‐based PLC due to its low ...
Gao Fan   +7 more
doaj   +1 more source

Throughput improvement on bidirectional Fano algorithm [PDF]

open access: yes, 2010
Recently, we introduced a bidirectional Fano algorithm (BFA) [10] which can achieve much higher decoding throughput compared to the regular unidirectional Fano algorithm (UFA), especially at low signal-to-noise-ratio (SNR).
Koçak, T   +7 more
core   +1 more source

Adaptive Coded Modulation for OFDM System

open access: yesJournal of Engineering, 2023
This paper studies the adaptive coded modulation for coded OFDM system using punctured convolutional code, channel estimation, equalization and SNR estimation.
Serkout N. Abdullah   +1 more
doaj   +1 more source

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