A multichannel random pulse counter

A Flexible Multichannel Digital Random Pulse Generator Based on FPGA

The present paper describes a multichannel digital random pulse generator implemented in a 65-nm FPGA device. The random time interval generation is based on inverse transformation method. The output pulse generation rate, pulse width and the probability distribution function (PDF) of each channel might be individually selected by the computer through a USB cable connection. Statistical propert...

Improving Pulse Rate Measurements during Random Motion Using a Wearable Multichannel Reflectance Photoplethysmograph

Photoplethysmographic (PPG) waveforms are used to acquire pulse rate (PR) measurements from pulsatile arterial blood volume. PPG waveforms are highly susceptible to motion artifacts (MA), limiting the implementation of PR measurements in mobile physiological monitoring devices. Previous studies have shown that multichannel photoplethysmograms can successfully acquire diverse signal information ...

Probing a Random Medium with a Pulse *

This paper studies the reflection of pulses from a randomly layered half space. It characterizes the statistical properties of the reflected signals at the surface in a suitable asymptotic limit in which the pulse width is large compared to the typical size of the inhomogeneous layers but small compared to the macroscopic variations of the medium properties. It is shown how this characterizatio...

Acoustic Pulse Spreading in a Random Fractal

A Counter-Intuitive Correlation in a Random Tournament

Abstract. Consider a randomly oriented graph G = (V, E) and let a, s and b be three distinct vertices in V . We study the correlation between the events {a → s} and {s → b}. We show that, when G is the complete graph Kn, the correlation is negative for n = 3, zero for n = 4, and that, counter-intuitively, it is positive for n ≥ 5. We also show that the correlation is always negative when G is a...