Results 41 to 50 of about 43,068 (161)
A Novel Classification Framework for VLF/LF Lightning-Radiation Electric-Field Waveforms
AtmosphereThe classification of very-low-frequency and low-frequency (VLF/LF) lightning-radiation electric-field waveforms is of paramount importance for lightning-disaster prevention and mitigation. However, traditional waveform classification methods suffer from
Wenxing Sun +6 more
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Machine Learning Doppler‐Tolerant One‐Bit Radar Detectors
IET Radar, Sonar & NavigationDoppler‐tolerant waveforms are some of the most common radar waveforms used in practice. However, their deterministic and repetitive nature impedes control of mutual interference when multiple radars operate in close proximity. Noise radar technology may
Kyle P. Wensell +7 more
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No Glitch in the Matrix: Robust Reconstruction of Gravitational Wave Signals under Noise Artifacts
The Astrophysical JournalGravitational wave (GW) observations by ground-based detectors such as LIGO and Virgo have transformed astrophysics, enabling the study of compact binary systems and their mergers.
Chayan Chatterjee, Karan Jani
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Reliable iron-loss evaluation under noisy conditions: Advantages of Bayesian estimation over conventional time averaging [PDF]
AIP AdvancesAccurate evaluation of iron loss in soft magnetic materials is often hindered by low signal-to-noise ratio (SNR) conditions, such as at low frequencies or in materials with low permeability.
Tomomi Suwa +2 more
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Stochastic multi-channel lock-in detection
New Journal of Physics, 2014 High-precision measurements benefit from lock-in detection of small signals. Here we discuss the extension of lock-in detection to many channels, using mutually orthogonal modulation waveforms, and show how the choice of waveforms affects the information
J J Hudson +3 more
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Scientific ReportsQuickly identifying and classifying lightning waveforms is the foundation of lightning forecasting and early warning. In this paper, based on the electric field observation of the Beijing lightning location website of the Institute of Atmospheric Physics,
Caixia Wang +5 more
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Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms
International Journal of Distributed Sensor Networks, 2011 Radio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality.
Qihe Pan, Ram M. Narayanan
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The 'median' method for the reduction of noise and trigger jitter on waveform data
Journal of Research of the National Institute of Standards and Technology, 2005 The "median" method for the reduction of the effect of noise and trigger jitter on waveform data is described. The effectiveness of this method was examined using simulations and experiments and, for typical jitter and noise observed in electrical pulse metrology, is shown to provide reconstructed waveforms with transition durations that accurately ...
Paulter, N. G., Larson, D. R.
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Detection of an unknown waveform randomly recurring in Gaussian noise
Information and Control, 1967 Matched filtering is a widely used signal processing technique for detecting a known signal imbedded in noise. In the pulsed sonar case, the medium often distorts the received signal to such an extent that matched filtering is not optimal. This paper deals with the case where a record is obtained of Gaussian noise containing many repetitions of the ...
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Audiology Research, 2014 The following objectives of the study were formulated: i) to investigate differences in measured signal to noise ratios while recording speech-evoked auditory brainstem response (cABR) and cortical late latency response (LLR) in low and high acceptable ...
Hemanth N. Shetty +2 more
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