Xem 1-4 trên 4 kết quả Electronic beamforming
  • This project explores the development of a multiple input multiple output (MIMO) simulator using ray tracing techniques. This project gives an overview of ray tracing techniques, beamforming, MIMO channel models and MIMO systems. It explains the ability of MIMO systems to offer significant capacity increases over traditional wireless systems, by exploiting the phenomenon of multipath. By modelling high frequency radio waves as travelling along localized linear trajectory paths, they can be approximated as rays, just as in optics....

    pdf73p vankent 19-07-2010 39 7   Download

  • It is my great pleasure to be an editor for InTech Open Access publisher, one of the most successful Open Access book publishersin the fields of science, technology and medicine. Sensor arrays are used to overcome the limits of simple and/or individual conventional sensors. Obviously, it is more complicated to deal with some issues related to sensor arrays, e.g. signal processing, than the conventional sensors. Some of the issues are addressed in this book, with emphasis on signal...

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  • Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2010, Article ID 873916, 7 pages doi:10.

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  • Multiple simultaneous beams exist when an array of N elements is connected to a beamformer with 1M beam ports, where N and 1M may be different. Multiplebeam systems have many uses: in electronic countermeasures, in satellite communications, in multiple-target radars, and in adaptive nulling, for example. The last application uses adaption in beam space as it avoids several serious difficulties that arise with adaption in array space. (Mayhan, 1972).

    pdf54p huggoo 23-08-2010 63 11   Download

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