Results 11 to 20 of about 145,983 (280)
Signal estimation in cognitive satellite networks for satellite-based industrial internet of things [PDF]
, 2021 Satellite industrial Internet of Things (IIoT) plays an important role in industrial manufactures without requiring the support of terrestrial infrastructures.
Chen, Yunfei +5 more
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Joint Channel Estimation Algorithm Based on DFT and DWT
Applied Sciences, 2022 Channel estimation is an important component of orthogonal frequency division multiplexing (OFDM) systems. The existence of virtual subcarriers leads to energy spreading in the time-domain when using Inverse Fast Fourier Transform (IFFT), resulting in ...
Zhe Zhang, Xin Bian, Mingqi Li
doaj +1 more source
Continuous Hidden Markov Model Based Spectrum Sensing with Estimated SNR for Cognitive UAV Networks
Sensors, 2022 In this paper, to enhance the spectrum utilization in cognitive unmanned aerial vehicle networks (CUAVNs), we propose a cooperative spectrum sensing scheme based on a continuous hidden Markov model (CHMM) with a novel signal-to-noise ratio (SNR ...
Yuqing Feng +3 more
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Entropy-Based Non-Data-Aided SNR Estimation [PDF]
2019 53rd Asilomar Conference on Signals, Systems, and Computers, 2019 A non-data-aided SNR estimation of a communication channel is addressed in this paper. The main contribution relies on the relationship between an entropy measure of a given constellation and the link quality. The main advantage is that the second order Rényi entropy is invariant to the rotation of the constellation and it is not envelope-based as the ...
Cabrera Estanyol, Ferran de +1 more
openaire +2 more sources
SNR Estimation in Linear Systems With Gaussian Matrices [PDF]
IEEE 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 +4 more sources
Distance Estimate of Tycho’s SNR
Journal of Physics: Conference Series, 2018 5 pages, 2 figures, conference PhysicA.SPb ...
Kozlova, A. V., Blinnikov, S. I.
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An Iterative Receiver for OFDM With Sparsity-Based Parametric Channel Estimation [PDF]
, 2018 In this work we design a receiver that iteratively passes soft information between the channel estimation and data decoding stages. The receiver incorporates sparsity-based parametric channel estimation.
Badiu, Mihai-Alin +3 more
core +2 more sources
Optimization Algorithm for DOA Estimation of a Shallow Sea Target Based on Active Time Reversal [PDF]
Xibei Gongye Daxue Xuebao, 2018 Time reversal technique is applied to the DOA estimation of a shallow sea target, and a method based on active time reversal (ATR) is proposed to achieve correct estimation under multipath and low signal-to-noise (SNR) conditions. Combining the classical
doaj +1 more source
Significant Wave Height Estimation Using Multi-Satellite Observations from GNSS-R
Remote 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
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IET 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