Results 201 to 210 of about 52,011 (257)
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2023
Abstract One of the first applications of the wartime and postwar informational studies of noise was the spread-spectrum technology that scrambled transmitted signals in a communication system for encryptive or antijamming purposes. These scrambled signals effectively “rode on” a noisy carrier.
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Abstract One of the first applications of the wartime and postwar informational studies of noise was the spread-spectrum technology that scrambled transmitted signals in a communication system for encryptive or antijamming purposes. These scrambled signals effectively “rode on” a noisy carrier.
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Spread spectrum communications: myths and realities
IEEE Communications Magazine, 1979Spread spectrum communication techniques date back to the early fifties. Since the earliest applications, system improvements have been more evolutionary than revolutionary. Like most improvements in electronic systems, these are due primarily to the availability of ever higher speed integrated circuit components, which translate in this case ...
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A spread spectrum communications channel sounder
IEEE Transactions on Communications, 1997The design of a microwave channel probing analyzer is presented and discussed. Special attention is paid to the characteristics of the transmission path to be measured; the choice of spread spectrum probing signal; the signal processing methods used; modulation, demodulation, and synchronization at the transmitter and receiver sites; the path model to ...
John Austin +4 more
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Combination Sequences for Spread Spectrum Communications
IEEE Transactions on Communications, 1977Certain communication systems which employ spread spectrum techniques as a means of supporting multiple users need very long codes to guard against the threat of intentional jamming, but cannot tolerate the lengthy acquisition time which long codes usually require.
Laurence B. Milstein +1 more
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Spreading codes for wireless spread spectrum communications
Proceedings of ICC/SUPERCOMM '96 - International Conference on Communications, 2002Spread spectrum techniques are often utilized when designing wireless communication systems. The success of a spread spectrum system depends greatly upon the spreading codes employed by the transmitters. In this paper, a novel approach to the generation of spreading codes is examined.
K. Hetling, G. Saulnier, P. Das
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Spread-spectrum communication techniques
Electronics & Communication Engineering Journal, 1994Spread-spectrum modulation can be used in a radio system to reduce the likelihood of intercept, as well as providing some protection against jamming and interference. These antijam, anti-interference and low-probability-of-intercept properties are highly desirable in secured communication systems.
T.S.D. Tsui, T.G. Clarkson
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SPREAD SPECTRUM COMMUNICATION VIA CHAOS
International Journal of Bifurcation and Chaos, 1999A new scheme is proposed for spread spectrum communication which transmits both analog and binary data via chaotic carriers. The proposed systems have some standard properties of spread spectrum communication. Some computer simulations and performance analysis are given to examine the validity of this scheme.
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Spread spectrum for mobile communications
IEEE Transactions on Vehicular Technology, 1991The characteristics of spread spectrum that make it advantageous for mobile communications are described. The parameters that determine both the performance and the total capacity are introduced, and an analysis which yields (approximately) the number of users that can simultaneously communicate, while maintaining a specified level of performance, is ...
R.L. Pickholtz +2 more
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Spread Spectrum Communications—A Review
IETE Technical Review, 1993Spread spectrum communications have been used in military applications since long. They are now finding civilian applications also. This paper presents a review of different techniques of spectrum spreading, despreading, code acquisition and tracking. Some results on anti-jamming have been given.
S L Maskara, S Chakrabarti
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Spread Spectrum for Wireless Communications
1995Though originally developed as a military technology, spread-spectrum communications has achieved widespread commercial acceptance in the last several years. The increased interest in spread spectrum for wireless communications can be attributed to the high spectral effiiciency of Code Division Multiple Access techniques, and to the natural resistance ...
R. M. Buehrer, B. D. Woerner
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