Results 281 to 290 of about 6,077,443 (312)

Analysis of the Level Crossing Rates for Ordered Random Processes

2011 IEEE International Conference on Communications (ICC), 2011
Given n independent but not necessarily identical random processes, this paper investigates the general problem of determining how frequently, on average, any given process becomes at least the p-th (p = 1, 2, . . . , n - 1) largest among all processes.
K. D. Prathapasinghe Dharmawansa, Matthew R. McKay, Peter J. Smith 0001   +2 more
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Speech recognition based on zero crossing rate and energy

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1985
This paper investigates the possibility of implementing a speaker-trained, small vocabulary, isolated word recognition system based on the zero crossing rate and energy features of the utterances.
Yiu-Kei Lau, Chok-Ki Chan
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Intelligibility for the zero-crossing rate compression of speech

The Journal of the Acoustical Society of America, 1978
A patient with hearing loss mainly in the high-frequency range can not clearly comprehend speech. Therefore, if the frequency band is compressed to a lower range, it is possible that the speech perception of such a patient can be improved. To test this possibility, the instrument described below was constructed and experimentally tested.
H. Miyaguchi, S. Ozawa, H. Ono, S. Saito
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Monitoring surface EMG spectral changes by the zero crossing rate

Medical & Biological Engineering & Computing, 1986
A system is described which monitors spectral changes of the surface EMG. It is shown analytically that a relationship exists between the zero crossing rate (ZCR) and the mean, Fa, and median, Fm, frequencies of the surface EMG. Under the existing conditions of this relationship a system can be built which can estimate and monitor the Fa or Fm of the ...
G F, Inbar, J, Allin, O, Paiss, H, Kranz
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The Cross Rate: Linear Processing for the Two User Broadcast Channel

2010 IEEE International Conference on Communications, 2010
A novel linear precoding technique for the two user broadcast channel is presented. The performance measure used is the cross rate, defined as the difference between the sum throughputs of the system and its transpose. We show that the cross rate optimization problem can be reformulated as an alternating optimization of the steering matrix and power ...
Alon Shalev Housfater, Teng Joon Lim
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Predicting Intersystem Crossing Rates with AIMS-DFT Molecular Dynamics

The Journal of Physical Chemistry A, 2018
Accurate prediction of the intersystem crossing rates is important for many different applications in chemistry, physics, and biology. Recently, we implemented the ab initio multiple spawning (AIMS) molecular dynamics method to describe the intersystem crossing processes, where nonradiative transitions between electronic states with different spin ...
Dmitry A. Fedorov, Aleksandr O. Lykhin, Sergey A. Varganov   +2 more
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Zero-crossing rate of differentiated speckle intensity

Journal of the Optical Society of America A, 1994
The zero-crossing rate of differentiated speckle whose intensity is governed by a negative exponential probability-density function (i.e., fully developed speckle) is evaluated in closed form with the use of an exact expression for the joint probability-density function of the intensity and its first two derivatives.
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Level crossing rates in binary counting systems

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1996
Abstract The statistics of threshold level crossings, which were first calculated by Rice [1], are applied to an amplifier system employing a realistic filter to derive the dependence of the rate on the magnitudes of the noise sources in the system.
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The Impact of Cross-Rate Interference on LORAN-C Receivers

IEEE Transactions on Aerospace and Electronic Systems, 1985
Wong [1] recommends that 16 additional LORAN-C ground stations are needed to provide redundant coverage throughout the conterminous U.S. so that LORAN-C can provide the primary navigation service to civil aviation. The purpose of this paper is to estimate the effect of the interference from the additional stations on the acquisition (phase code ...
M. Zeltser, M. El-Arini
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Application of the level crossing rate function to sea clutter

2012 IEEE Radar Conference, 2012
The contribution of this paper is to propose, and compute the level crossing rate (LCR), average calm duration (ACD) and average surge duration (ASD) in the context of radar clutter and false alarm analysis. The derived formulas for the LCR, ACD and ASD are then compared to their measured values calculated from experimental radar sea clutter and are ...
M. Farshchian, A. Abdi, F. Posner
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