Results 261 to 270 of about 10,510,029 (299)

Communication over fading dispersive channels with feedback

IEEE Transactions on Information Theory, 1972
An intermittent on-off noiseless feedback scheme for binary communication over the slow- and fast-fading Rayleigh channels is proposed and analyzed. At high energy-to-noise ratios, doubling the number of feedback iterations yields a 3-dB power saving for the slowly fading channel.
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Parameterization of plume dispersion over water

Atmospheric Environment (1967), 1986
Abstract Data collected during a continuous surface release point source tracer experiment off the California coast have been analyzed to obtain the conventional, hourly averaged sigma-y and sigma-z values widely used in Gaussian plume dispersion formulae.
C.E. Skupniewicz, G.E. Schacher
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Dispersion Parameters over Forested Terrain

Journal of Applied Meteorology, 1988
Abstract A unique set of micrometeorological data was obtained during a 1967–70 multidisciplinary environmental field program in a tropical forest environment. The program was under the sponsorship of the Advanced Research Project Agency (ARPA) and was known as Project TREND (Tropical Environmental Data). Wind variability parameters, which characterize
R. T. Pinker, J. Z. Holland
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Superoscillating Signal Transmission over Dispersive Media

2023 23rd International Conference on Transparent Optical Networks (ICTON), 2023
Yosef Ben-Ezra, Boris I. Lembrikov
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Wireless Communication over Dispersive Channels.

2010
Broadband wireless communication systems require high transmission rates, where the bandwidth of the transmitted signal is larger than the channel coherence bandwidth. This gives rise to time dispersion of the transmitted symbols or frequency-selectivity with different frequency components exhibiting different gains.
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Airflow and Dispersion over Complex Terrain

1989
To exploit recent experimental and theoretical research on the air flow over terrain with moderate-to-low slopes, a code for widespread use on a personal computer has been developed. The basis of the analysis used in the code depends primarily on Fourier transformation of both the equations of motion and the underlying terrain.
D. J. Carruthers, J. C. R. Hunt, R. J. Holroyd   +2 more
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Shadows over screening mammography dispersed

Clinical Radiology, 1990
T, Mathiesen, H, Flensburg
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A Tracer Study of Dispersion Over a City

Journal of the Air Pollution Control Association, 1966
The planning and conduct of series of tracer experiments carried out in St. Louis in the period between 1963 and 1965 is described. Tentative results indicate that horizontal dispersion over an urban area does not differ greatly from that observed over open country, except for a much greater initial spreading of the tracer plume.
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Modeling Over-Dispersed Microbiome Data

2018
However, count data is not purely relative—the count pair (1, 2) carries different information than counts of (1000, 2000) even though the relative amounts of the two components are the same.
Yinglin Xia, Jun Sun, Ding-Geng Chen
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Dispersion in the Ether: Light over the Water

Physics in Perspective, 2001
This is an account of measurements of the velocity of light by James Young (1811–1883) and George Forbes (1849–1936) around 1880 based upon an improved version of Fizeau's toothed-wheel method. They presented evidence for a dispersive effect resulting in a difference in the velocity of 1.8% across the visible spectrum.
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