Results 261 to 270 of about 885,980 (316)
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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.
Takeharu Kohri, Takeshi Hattori
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Radio Photographs, Radio Movies, and Radio Vision
Transactions of the Society of Motion Picture Engineers, 1923Attempts to send pictures electrically, and to see by wire, i.e., “television,” are very old, dating back well-nigh a hundred years. And as radio differs from wire only as a means of carrying the picture characteristics over the intervening distance between stations, with the advantages in favor of radio, it is quite natural that the early workers ...
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Green Radio Technologies [Mobile Radio]
IEEE Vehicular Technology Magazine, 2010Nokia Siemens Networks and Vodafone have successfully tested a new antenna technology designed to reduce carbon emissions and improve the cost efficiency of mobile phone networks for operators. According to the companies, the tests, carried out through the Nokia Siemens Networks Innovation Center (NICE) initiative between the two companies, mark the ...
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IEEE Communications Magazine, 1981
In this review, we look, however briefly, at some of the highlights in the nearly 70 years of amateur radio, from sparks and coherers to sophisticated solid-state transceivers. We believe that this record testifies to the worth of the amateur approach in almost every phase of the radio communications art.
Edmund Laport +2 more
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In this review, we look, however briefly, at some of the highlights in the nearly 70 years of amateur radio, from sparks and coherers to sophisticated solid-state transceivers. We believe that this record testifies to the worth of the amateur approach in almost every phase of the radio communications art.
Edmund Laport +2 more
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IEEE Journal on Selected Areas in Communications, 1999
Conventional software radios take advantage of vastly improved analog to digital converters (ADCs) and digital signal processing (DSP) hardware. Our approach, which we refer to as virtual radios, also depends upon high performance ADCs. However, rather than use DSPs, we have chosen to ride the curve of rapidly improving workstation hardware.
Vanu G. Bose +3 more
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Conventional software radios take advantage of vastly improved analog to digital converters (ADCs) and digital signal processing (DSP) hardware. Our approach, which we refer to as virtual radios, also depends upon high performance ADCs. However, rather than use DSPs, we have chosen to ride the curve of rapidly improving workstation hardware.
Vanu G. Bose +3 more
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2015 IEEE International Symposium on Circuits and Systems (ISCAS), 2015
The average smart phone user picks up the device 1,500 times a week. Wireless communication appears to be taking over our lives but it also presents interesting challenges to RF designers. This paper contends that the mobile terminal will emerge as a central command post for most of our daily affairs and will therefore sustain an increasingly heavier ...
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The average smart phone user picks up the device 1,500 times a week. Wireless communication appears to be taking over our lives but it also presents interesting challenges to RF designers. This paper contends that the mobile terminal will emerge as a central command post for most of our daily affairs and will therefore sustain an increasingly heavier ...
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Radio Astronomy (Radio Astronomie)
1971The President welcomed members of the Commission and the large gathering of non-members present. He recorded with deep regret the death in July 1968 of Professor S. E. Khaikin of Pulkovo Observatory.
J. P. Wild, S. F. Smerd
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The Radio Antipodal and Radio Numbers of the Hypercube.
Ars Comb., 2011A radio k-labeling of a connected graph G is an assignment f of non negative integers to the vertices of G such that |f(x) − f(y)| \ge k + 1 − d(x, y), for any two vertices x and y, where d(x, y) is the distance between x and y in G. The radio antipodal number is the minimum span of a radio (diam(G) − 1)-labeling of G and the radio number is the ...
Khennoufa, Riadh, Togni, Olivier
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Radio as Technology, Radio as Art
2023Part One, ‘Radio as Technology, Radio as Art,’ gathers a selection of essays that seek to sketch out radio’s artistic future. Part One includes longer essays as well as short reflections discussing the promises that radio holds for artistic creation, and advocating for the need to recognise radio’s revolutionary aesthetics.
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Education for Radio, Radio for Education
The Clearing House: A Journal of Educational Strategies, Issues and Ideas, 1936(1936). Education for Radio, Radio for Education. The Clearing House: A Journal of Educational Strategies, Issues and Ideas: Vol. 10, No. 7, pp. 400-401.
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