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Digital Microwave Radio Program
MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications, 1982In 1981 CECOM placed four contracts for the exploratory development of ECCM techniques which are to be considered for use in a new digital microwave radio development. A spread spectrum modem is under development which will operate in the 4.4 to 5.0 GHz band. The modem will also be designed to operate, with minor changes, in the 14.4 to 15.35 GHz range.
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Programmable channelized digital radio
[Proceedings] NTC-92: National Telesystems Conference, 2003Ongoing work by GEC-Marconi Electronic Systems Division in the development of a multifunction, common module, programmable digital radio/modem is described. The radio system handles conventional narrowband and spread-spectrum waveforms. The architecture developed is a programmable channelized approach.
R.S. Prill, M. Antonesco
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Digital radio frequency memory
Electronics & Communication Engineering Journal, 1990Digital radio frequency memory (DRFM) is a technique in which high-speed sampling and digital memory is used to store radio frequency and microwave signals. It is becoming a popular technique for the implementation of false-target ECM systems. The paper discusses the principles of DRFM and the advantages of alternative system architectures.
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Digital Telecommunications Radio Systems
MTT-S International Microwave Symposium Digest, 2005The increasing need for digital transmission facilities has generated requirements for microwave digital transmission systems that are reliable, have high performance and are spectrally efficient. Application considerations, including interference, frequency planning and growth, of such a system are discussed.
P.R. Hartmann, J.A. Crossett
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Digital mobile radio communication
23rd IEEE Vehicular Technology Conference, 1972This thesis is aimed at the problem of quickly and accurately communicating digital data between fixed and mobile (either vehicle-mounted or hand-held) radio stations. Digital error is of prime concern and the effects which multipath propagation, Gaussian noise, and implusive noise have on digital errors are analyzed.
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2010
In 2000, a further digital broadcasting standard called DRM - Digital Radio Mondiale [ETS 101980] was created. DRM is intended for the frequency band from 30 kHz … 30 MHz, in which the AM service was normally transmitted. The broadcasting frequency bands were basically divided in accordance with their propagation characteristics, as follows: LW ...
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In 2000, a further digital broadcasting standard called DRM - Digital Radio Mondiale [ETS 101980] was created. DRM is intended for the frequency band from 30 kHz … 30 MHz, in which the AM service was normally transmitted. The broadcasting frequency bands were basically divided in accordance with their propagation characteristics, as follows: LW ...
openaire +1 more source