Results 251 to 260 of about 92,069 (306)

Investigating the impact of viscosifier concentrations on hydraulic horsepower at the bit. [PDF]

Sci Rep
Ohaegbulam C, Wecheonwu B, Igwilo K, Ezekannagha C, Nkemakolam I, Onyejekwe I.   +5 more
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Bit error rate evaluation for orthogonal space-time block codes in the presence of channel estimation errors

, 2012
Lennert Jacobs
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Bit error rates for general beams

Applied Optics, 2008
In order to analyze the effect of beam type on free space optical communication systems, bit error rate (BER) values versus signal-to-noise ratio (SNR) are calculated for zero order and higher order general beam types, namely for Gaussian, cos-Gaussian, cosh-Gaussian, and annular beams.
Serap Altay, Arpali, Halil T, Eyyuboğlu, Yahya, Baykal   +2 more
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Off-track bit error rate modeling

Journal of Applied Physics, 1999
Traditionally, channel generated bit error rates (BERs) at a certain signal to noise ratio (SNR) have been modeled by a Gaussian distribution function. This approach has been suitable for a peak detection channel as the analysis is performed in only one bit. In the case of a partial response maximum likelihood (PRML) channel, one data bit is determined
Yuan Qin, Juan Fernandez-de-Castro, Jim Giusti   +2 more
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Sequential Bayesian Bit Error Rate Measurement

IEEE Transactions on Instrumentation and Measurement, 2004
As bit error rates decrease, the time required to measure a bit error rate (BER) or perform a BER test (i.e., to determine that a particular communications device's BER is less than some acceptable limit) increases dramatically. One cause of long measurement times is the difficulty of deciding a priori how many bits to measure to establish the BER to ...
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Bit error probabilities in a two-rate communication system

IEEE International Conference on Communications, 2003. ICC '03., 2004
We examine a two-rate communication system where the transmission is suspended if the received SNR falls below a given threshold. We assume an FDD system and derive novel closed-form bit error probabilities in the presence of feedback errors in flat Rayleigh fading environment for single antenna transmission, orthogonal space-time block coding and ...
Hämäläinen Jyri, Wichman Risto
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Bit Error Probability and Bit Outage Rate in Chaos Communication

Circuits, Systems and Signal Processing, 2005
This paper investigates the notion of the probability of bit error (PBE) and its distribution in chaos-based communication systems; these are seen as being the fundamental quantities to both the well-known bit error rate (BER) and the new concept in chaos communications of bit outage rate (BOR).
Anthony J. Lawrance, Gan Ohama
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Normalized adaptive minimum bit-error-rate beamformers

2004 IEEE Region 10 Conference TENCON 2004., 2004
We address the convergence limitations of adaptive minimum bit-error-rate beamformers (AMBER) beamformers under fading channel environments by developing the normalized AMBER (NAMBER) beamforming algorithms. NAMBER beamformers make use of probability-of-bit-error cost functions that are normalized vs. input signal level.
I.D.S. Garcia, J.J.S. Marciano, R.D. Cajote   +2 more
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Bit Error Rates

2001
A practical consideration that has so far received little attention is the correcting power of the coding required to do the job. In other words, if we need a certain improvement in channel performance, how many bits must we be able to correct? This aspect of the subject gets quite mathematical, so I shall give only a simplified view of the problem in ...
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