Results 311 to 320 of about 989,982 (368)
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Digital-to-radio converter for software radio
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525), 2002We have proposed a digital-to-radio (D/R) converter that can directly change a digital signal generated by a logic circuit into a radio signal. This D/R converter enables an RF circuit and an antenna to be composed of one simple device, and the radio can be directly controlled by software; this is the essence of software radio.
T. Kohri, T. Hattori
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The digital implementation of radio
[Conference Record] GLOBECOM '92 - Communications for Global Users: IEEE, 2003A class of highly programmable radio architectures is described. Because of distinctly different constraints associated with each propagation environment, compact modular radio frequency (RF) units are needed for each class of radio network to be accessed.
J. Lodge, V. Szwarc
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1995
Mobile and portable telephone systems present some unique engineering challenges. One of these is their use of radio wave propagation, with its highly variable path characteristics. Another is the fact that the switching system no longer can count on a given subscriber set simply being at the end of a corresponding wire pair.
Bernhard E. Keiser, Eugene Strange
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Mobile and portable telephone systems present some unique engineering challenges. One of these is their use of radio wave propagation, with its highly variable path characteristics. Another is the fact that the switching system no longer can count on a given subscriber set simply being at the end of a corresponding wire pair.
Bernhard E. Keiser, Eugene Strange
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MILCOM 97 MILCOM 97 Proceedings, 2002
For several years, GEC-Marconi Hazeltine (GMH) and Northrop Grumman Corp. (NGC) have been developing and field demonstrating a common module programmable digital radio (PDR) for army, air force and navy applications. This third generation 1.5 MHz to 2 GHz software radio handles not only the traditional narrow band waveforms (HF, VHF, UHF), but also ...
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For several years, GEC-Marconi Hazeltine (GMH) and Northrop Grumman Corp. (NGC) have been developing and field demonstrating a common module programmable digital radio (PDR) for army, air force and navy applications. This third generation 1.5 MHz to 2 GHz software radio handles not only the traditional narrow band waveforms (HF, VHF, UHF), but also ...
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Journal of Radio & Audio Media, 2014
Dubber, A. (2014). Radio in the Digital Age. Cambridge, UK: Polity Press. 208 pages.Radio may not even exist.
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Dubber, A. (2014). Radio in the Digital Age. Cambridge, UK: Polity Press. 208 pages.Radio may not even exist.
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Popular Music and Society, 2015
In Radio in the Digital Age, Andrew Dubber provides a timely look at the role of radio in contemporary digital society.
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In Radio in the Digital Age, Andrew Dubber provides a timely look at the role of radio in contemporary digital society.
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DRM---- the Digital Radio on the Way
2007 IEEE Symposium on Computers and Communications, 2007Short-wave together with medium- and long-wave broadcasting still has large listenership worldwide. With the newly developed digital system DRM will overcome these reception problems and bring high audio quality, which will change the whole broadcasting scenario.
Feng Zhang +3 more
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Digital cellular radio systems [PDF]
, 1989 In the last chapter, the use of established analogue modulation techniques was described in the context of high-capacity cellular radio telephone applications. Conclusions regarding existing systems operation and future developments may be drawn, and these centre on the issue of capacity.
J. G. Gardiner, J. D. Parsons
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1985
Considers free-space propagation and discusses deviations from it due to effects of terrain, atmosphere, and precipitation Describes multipath fading due to ground reflection or atmospheric refraction and characterizes it with fading parameters and statistical models Describes empirical path loss models Explains digital radio performance
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Considers free-space propagation and discusses deviations from it due to effects of terrain, atmosphere, and precipitation Describes multipath fading due to ground reflection or atmospheric refraction and characterizes it with fading parameters and statistical models Describes empirical path loss models Explains digital radio performance
openaire +2 more sources