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Experimental demonstration of a noise-tunable delay line with applications to phase synchronization
(Elsevier Science, 2015-05)
In this paper we propose and demonstrate a discrete circuit capable of generating arbitrary time delays dependent on noise, either added externally or already present in the signal of interest due to a finite signal-to-noise ...
Noise reduction in resonator-based ultrasound sensors by using a CW laser and phase detection
(Optical Society of America, 2019-06)
The detection of ultrasound via optical resonators is conventionally performed by tuning a continuous-wave (CW) laser to the linear slope of the resonance and monitoring the intensity modulation at the resonator output. ...
Noncontact AC Voltage Measurements: Error and Noise Analysis
(Institute of Electrical and Electronics Engineers, 2018-08)
A capacitive noncontact ac voltage measurement technique and its feasibility to measure arbitrary waveform signals are analyzed. The method provides self-calibration of the scale factor, an important feature considering ...
A 2GS/s 6-bit CMOS time-interleaved ADC for analysis of mixed-signal calibration techniques
(Springer, 2015-07)
A 2-GS/s 6-bit time interleaved (TI) successive approximation register (SAR) analog-to-digital converter (ADC) is designed and fabricated in a 0.13 lm CMOS process. The architecture uses 8 time-interleaved track-andhold ...
Spectral estimation of terahertz time-domain signals using a simple parametric method
(Institution of Engineering and Technology, 2015-12)
A simple method for spectral estimation of terahertz signals using an autoregressive model is developed. The technique shows a better spectral variance and resolution over the use of the Fast Fourier Transform, which is ...
Voice Signal Typing Using a Pattern Recognition Approach
(Mosby-Elsevier, 2020-05)
Voice signal classification in three types according to their degree of periodicity, a task known as signal typing, is a relevant preprocessing step before computing any perturbation measures. However, it is a time consuming ...
Dielectric antenna effects in integrating line piezoelectric sensors for optoacoustic imaging
(IOP Publishing, 2020-06)
This work studies the adverse effects, as regards noise, of immersing in water an integrating line piezoelectric detector devoted to optoacoustic imaging. We found that the sensor, in conjunction with the acoustic coupling ...
Influence of background size, luminance and eccentricity on different adaptation mechanisms
(Pergamon-Elsevier Science Ltd, 2016-08)
Mechanisms of light adaptation have been traditionally explained with reference to psychophysical experimentation. However, the neural substrata involved in those mechanisms remain to be elucidated. Our study analyzed links ...
Simulation capability of tropical and extratropical seasonal climate anomalies over South America
(Springer, 2005-07-26)
An ensemble of 20 extended integrations of the atmospheric model CSIRO Mark 2, forced with the sea surface temperature observed during the 1986–1998 period, was performed to analyze the simulation capability of seasonal ...
Adaptive Background Compensation of Frequency Interleaved DACs with Application to Coherent Optical Transceivers
(Institute of Electrical and Electronics Engineers, 2021-03)
Digital-to-analog converters (DACs) with bandwidths larger than 70 GHz and sampling rates in excess of 170 GS/s will soon be required in ultra-high speed communication applications such as coherent optical transceivers ...