Results 31 to 40 of about 36,429 (287)
DOA estimation algorithm based on spread spectrum sequence in low signal-to-noise ratio
EURASIP Journal on Wireless Communications and Networking, 2022 Spread spectrum communication is a common communication method in underwater communication. Based on the space-time processor received by the array, it can filter the signals arriving along each path separately.
Feng Zhou +4 more
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Joint Model-Order and Robust DoA Estimation for Underwater Sensor Arrays
Sensors, 2023 The direction-of-arrival (DoA) estimation algorithms have a fundamental role in target bearing estimation by sensor array systems. Recently, compressive sensing (CS)-based sparse reconstruction techniques have been investigated for DoA estimation due to ...
Umar Hamid +2 more
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A non-data-aided SNR estimator based on maximum likelihood method for communication between orbiters
EURASIP Journal on Wireless Communications and Networking, 2020 Signal-to-noise ratio (SNR) is an important metric for performance assessment in numerous scenerios. In order to ensure the reliability and effectiveness of the system performance, plenty of situations require the information of SNR estimate. At the same
Zezhou Sun, Xin Gong, Fan Lu
doaj +1 more source
SNR estimation in communication systems using cognitive radio
, 2022 The fast and great developments of communication systems especially on wireless communication lead to big responsibilities on engineers to design systems have the ability for signal to noise ratio (SNR) estimation at the receivers.
Türkben, Ayça Kurnaz +1 more
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An improved SNR estimator for speech enhancement
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008 In this paper, we propose an MMSE a priori SNR estimator for speech enhancement. This estimator has similar benefits to the well-known decision-directed approach, but does not require an ad-hoc weighting factor to balance the past a priori SNR and current ML SNR estimate with smoothing across frames.
Ren, Yao, Johnson, Michael T.
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Entropy-based non-data-aided SNR estimation [PDF]
, 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.
Cabrera Estanyol, Ferran de +3 more
core +1 more source
Multitaper Estimation Of The Coherence Spectrum In Low Snr [PDF]
, 2014 Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
Brynolfsson, Johan, Sandsten, Maria
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Approximate maximum likelihood estimation of two closely spaced sources [PDF]
, 2014 The performance of the majority of high resolution algorithms designed for either spectral analysis or Direction-of-Arrival (DoA) estimation drastically degrade when the amplitude sources are highly correlated or when the number of available snapshots is
Chaumette, Eric +2 more
core +1 more source
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
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel +8 more
wiley +1 more source