Multipath environments

Xem 1-14 trên 14 kết quả Multipath environments
  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Particle Swarm Optimization Based Noncoherent Detector for Ultra-Wideband Radio in Intensive Multipath Environments

    pdf14p sting05 09-02-2012 21 5   Download

  • Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2011, Article ID 412036, 14 pages doi:10.1155/2011/412036 Research Article Performance of Post-Demodulator Adaptive Filters for FSK Signals in a Multipath Environment Shu-Ting Lee,1 Sally L. Wood,1 Michael J. Ready,2 and John R. Treichler2 1 Department 2 Corporate Of Electrical Engineering, Santa Clara University, Santa Clara, CA 95053, USA Division, Applied Signal Technology, Sunnyvale, CA 94086, USA Correspondence should be addressed to Shu-Ting Lee, slee1@scu.

    pdf14p dauphong13 10-02-2012 28 5   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Channel Tracking Using Particle Filtering in Unresolvable Multipath Environments

    pdf11p sting12 11-03-2012 12 3   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Gaussian Channel Model for Mobile Multipath Environment

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  • Introduction to digital modulation Relevant Modulation Schemes (QPSK, GMSK, M-Ary Schemes) Coherent and Differential Reception The impact of the mobile channel on digital modulation – noise and interference – random FM (narrowband fading) – intersymbol interference (wideband fading The bit rate defines the rate at which information is passed. l The baud (or signalling) rate defines the number of symbols per second. Each symbol represents n bits, and has M signal states, where M = 2n. This is called M-ary signalling....

    pdf40p dotai46 07-05-2012 35 10   Download

  • 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

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Automated linear regression tools improve RSSI WSN localization in multipath indoor environment

    pdf27p dauphong12 08-02-2012 24 5   Download

  • Biomedical Engineering can be seen as a mix of Medicine, Engineering and Science. In fact, this is a natural connection, as the most complicated engineering masterpiece is the human body. And it is exactly to help our “body machine” that Biomedical Engineering has its niche. This book brings the state-of-the-art of some of the most important current research related to Biomedical Engineering.

    pdf352p kimngan_1 05-11-2012 32 5   Download

  • Biomedical Engineering can be seen as a mix of Medicine, Engineering and Science. In fact, this is a natural connection, as the most complicated engineering masterpiece is the human body. And it is exactly to help our “body machine” that Biomedical Engineering has its niche. This book brings the state-of-the-art of some of the most important current research related to Biomedical Engineering.

    pdf306p kimngan_1 05-11-2012 20 5   Download

  • Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011, Article ID 263134, 16 pages doi:10.

    pdf16p dauphong13 09-02-2012 32 3   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Polarization Behavior of Discrete Multipath and Diffuse Scattering in Urban Environments

    pdf16p sting11 09-03-2012 10 2   Download

  • The mobile radio propagation environment clearly places fundamental limitations on the performance of radio communication systems. Signals arrive at a receiver via a scattering mechanism, and the existence of multiple propagation paths (multipath) with di€erent time delays, attenuations and phases gives rise to a highly complex, time-varying transmission channel. In order for systems engineers to determine optimum methods of mitigating the impairments caused by multipath propagation, it is essential that the transmission channel be properly characterised. ...

    pdf26p tienvovan 16-09-2010 48 6   Download

  • Characterisation of Multipath Phenomena In Chapter 3 we described some methods for predicting path losses, concentrating on those applicable to mobile communication systems. The discussion centred around techniques that deal principally with radio propagation over irregular terrain; methods of predicting signal strength in urban areas or in other environments, e.g. inside buildings, were deliberately left until Chapter 4. These propagation models are extremely important since the vast majority of mobile communication systems operate in and around centres of population....

    pdf50p tienvovan 16-09-2010 26 5   Download

  • Existing AM and FM broadcasting have remained relatively unchanged since the 1960s when FM stereo transmission was introduced. Meanwhile, audio recording techniques have undergone tremendous change from traditional analog to high quality digital recording with the introduction of compact disc, and most recently MP3 compressed audio recording to permit music be transmitted via the Internet. Traditional analog broadcasts were originally designed for stationary receivers and suffer from degradation of the received signal when used in a mobile environment with weak signal strength and multipath...

    pdf34p tienvovan 16-09-2010 33 4   Download

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