Results 1 to 10 of about 29,669 (249)
Data-Aided SNR Estimation for Bandlimited Optical Intensity Channels [PDF]
Sensors, 2022 Not only for radio frequency but also for optical communication systems, knowledge of the signal-to-noise ratio (SNR) is essential, e.g., for an adaptive network, where modulation schemes and/or error correction methods should be selected according to ...
Wilfried Gappmair
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Non-Data-Aided SNR Estimation for Bandlimited Optical Intensity Channels [PDF]
Sensors, 2023 Powerful and reliable estimation of transmission parameters is an indispensable task in each receiver unit—not only for radio frequency, but also for optical wireless communication systems.
Wilfried Gappmair
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A priori SNR estimation and noise estimation for speech enhancement. [PDF]
EURASIP J Adv Signal Process, 2016 A priori signal-to-noise ratio (SNR) estimation and noise estimation are important for speech enhancement. In this paper, a novel modified decision-directed (DD) a priori SNR estimation approach based on single-frequency entropy, named DDBSE, is proposed.
Yao R, Zeng Z, Zhu P.
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Novel Results on SNR Estimation for Bandlimited Optical Intensity Channels [PDF]
Sensors, 2023 In a previous work of the author about non-data-aided estimation of the signal-to-noise ratio (SNR) for bandlimited optical intensity channels, a couple of limitations have been identified in terms of error performance and computational complexity.
Wilfried Gappmair
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Deep Learning-Based SNR Estimation
IEEE Open Journal of the Communications SocietyThe signal-to-noise ratio (SNR) is an important metric for measuring signal quality and its estimation has received widespread attention in various application scenarios.
Shilian Zheng +5 more
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Performance Enhancement of Decision Directed SNR Estimation by Correction Scheme of SNR Estimation Error [PDF]
The Journal of Advanced Navigation Technology, 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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IEEE AccessNoises are commonly present in grayscale images, particularly in Scanning Electron Microscope (SEM) images especially secondary emission noise, which can significantly affect their quality.
Dominic Chee Yong Ong, Kok Swee Sim
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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.
B G Evans
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A Signal-to-Noise Ratio Estimation Method for Underwater Acoustic Adaptive Communication
水下无人系统学报, 2022 To solve the problem of signal-to-noise ratio(SNR) estimation for dynamic communication, an SNR estimation method suitable for underwater acoustic adaptive communication in trans-media heterogeneous networks was proposed.
Wei WANG +4 more
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Improved Weighted Matching Pursuit based Channel Estimation Algorithm
Guangtongxin yanjiu, 2022 Compressive sensing based matching pursuit algorithm can estimate the channel state information of communication system with shorter pilot sequences. It has the advantages of lower computational complexity and less number of pilots.
Zhi-guo Lü, Meng QI, Hong-xiang SHAO
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