Radio Transmission and Solar Activity*
نویسندگان
چکیده
منابع مشابه
Quadrature Amplitude Modulated Digital Radio Transmission Modeling and Simulation
Computer aided design and computer aided modeling tools are becoming increasingly important in the design and performance evaluation of communication systems. In this work, we report on the computer simulation modeling study of terrestrial digital microwave radio transmission, using Block Oriented System Simulator package (BOSS). The work concentrates on semi-analytical error rate evaluation in...
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The emission of solar flares at millimeter wavelengths is of great interest both in its own right and because it is generated by the energetic electrons which also emit gamma rays. Since high-resolution imaging at gamma-ray energies is not presently possible, millimeter observations can act as a substitute. Except for that class of flares known as gamma-ray flares the millimetric emission is op...
متن کاملSolar Radio Bursts and Space Weather
Space Weather is the study of the conditions in the solar wind that can affect life on the surface of the Earth, particularly the increasingly technologically sophisticated devices that are part of modern life. Solar radio observations are relevant to such phenomena because they generally originate as events in the solar atmosphere, including flares, coronal mass ejections and shocks, that prod...
متن کاملWideband CDMA Radio Transmission Technology
2 Introduction and Background 4 Objective 5 Motivation/Problem Statement 5 Analysis/Implementation 5 Operating Band Structure 5 W-CDMA Schemes 7 Data and Chip rate 8 Channel Bandwidth 8 Spreading and Modulation 9 Transmitter Specifications 9 Receiver Sensitivity 10 Handover 10 Wideband CDMA comparisons 11 Conclusion 11 References 12
متن کاملRadio-Activity
In a previous paper* Fr. Sierp and myself have dealt with some of the numerous hot springs in the Bombay Presidency. The favourable reception which that paper has received relieves me of the necessity of dwelling once more on the importance of the subject. The methods used in the present paper in measuring the radio-activity of the water and the gases are the same as in the former investigation...
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ژورنال
عنوان ژورنال: Nature
سال: 1938
ISSN: 0028-0836,1476-4687
DOI: 10.1038/142499a0