Results 251 to 260 of about 12,207 (274)
Some of the next articles are maybe not open access.
Impulse noise cancellation in multicarrier transmission
2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221), 2002A parallel between Reed Solomon codes in the complex field and multicarrier transmission using OFDM is first presented. This shows that when the signal is sent over some channel composed of Gaussian plus impulse noise, the impulse noise can be removed by a procedure similar to channel decoding, using information carried by the "syndrome". These results
F. Abdelkefi, P. Duhamel, F. Alberge
openaire +1 more source
Nonparametric Impulsive Noise Removal
2004In this paper a novel class of filters designed for the removal of impulsive noise in color images is presented. The proposed filter class is based on the nonparametric estimation of the density probability function in a sliding filter window. The obtained results show good noise removal capabilities and excellent structure preserving properties of the
Bogdan Smolka, Rastislav Lukac
openaire +1 more source
Comparison of impulse noise damage risk criteria using the chinchilla impulse noise exposures.
The Journal of the Acoustical Society of America, 2010The 1968 CHABA recommendations to limit impulsive noise exposure to levels below 140 dB sound pressure level form the basis of current United States occupational and military standards. The U.S. military standard, MIL-STD 1474D, estimates the number of allowable shots to which a person may be exposed using peak level, B-duration, for varying levels of ...
William J. Murphy +2 more
openaire +1 more source
The Journal of the Acoustical Society of America, 1969
When measuring ac signals with an averaging instrument, there is always a problem of what is actually measured at the low end of the frequency range. Actually, it is not only the frequency content of the signal itself that is important, but rather the frequency content of the envelope of the signal.
openaire +1 more source
When measuring ac signals with an averaging instrument, there is always a problem of what is actually measured at the low end of the frequency range. Actually, it is not only the frequency content of the signal itself that is important, but rather the frequency content of the envelope of the signal.
openaire +1 more source
Noise dosimeter for monitoring exposure to impulse noise
Applied Acoustics, 2005Abstract Commercially available noise dosimeters do not perform properly in impulsive noise environments because they suffer from instrumentation limitations and lack metrics that characterize impulse noise. In this paper, a design concept is proposed for an impulse noise monitoring dosimeter that addresses the current dosimeter’s limited ...
Chucri A. Kardous +2 more
openaire +1 more source
Robust Adaptation in Impulsive Noise
IEEE Transactions on Signal Processing, 2016The popular least-mean-squares (LMS) algorithm for adaptive filtering is nonrobust against impulsive noise in the measurements. The presence of this type of noise degrades the transient and steady-state performance of the algorithm. Since the distribution of the impulsive noise is generally unknown, a robust semi-parametric approach to adaptive ...
Sara Al-Sayed +2 more
openaire +1 more source
IEEE Transactions on Communication Technology, 1964
The impulse-noise cancelling device recently described by W.L. Black [IEEE Trans on Comm. Systems, vol. CS-11, p. 506; December, 1963] has in principle two noteworthy properties that he did not mention. First, the canceller does not fail completely when two noise pulses overlap in time, since the residual d.isturbance, if the two pulse responses are ...
openaire +1 more source
The impulse-noise cancelling device recently described by W.L. Black [IEEE Trans on Comm. Systems, vol. CS-11, p. 506; December, 1963] has in principle two noteworthy properties that he did not mention. First, the canceller does not fail completely when two noise pulses overlap in time, since the residual d.isturbance, if the two pulse responses are ...
openaire +1 more source
Noise sampling issues for impact/impulse noise surveys
The Journal of the Acoustical Society of America, 2003Noise-induced hearing loss (NIHL) has been recognized as a serious health concern for decades. ISO Standard 1999:1990 provides a means to predict noise-induced hearing loss (NIHL) based on LAeq measurements in the working environments of workers. This standard seems to work well for predicting hearing loss in continuous noise fields.
Mary M. Prince, Jeffrey S. Vipperman
openaire +1 more source
This document focuses on the data flow into the Impulsive Underwater Noise database, which hosts underwater noise collected continuously over a period of time. The data hosted at ICES are primarily collected by research institutions within HELCOM and/or OSPAR member countries.
openaire +1 more source
openaire +1 more source
Journal of Occupational and Environmental Medicine, 1967
R R, Coles, C G, Rice
openaire +2 more sources
R R, Coles, C G, Rice
openaire +2 more sources