「OFDM」に関連した動画の一覧

	Lecture - 31 Fundamentals of OFDM  Lecture Series on Digital Communication by Prof. Bikash. Kumar. Dey, Department of Electrical Engineering, IIT Bombay. For more details on NPTEL visit nptel.iitm.ac.in 2008年08月28日再生回数 47642
	Understanding Orthogonal Signals for OFDM (Part 1)  www.mindbites.com WSOCT and SavvyPaper teach you about orthogonality of the sine and cosine. Frequency orthogonality and phase orthogonality. 2009年08月04日再生回数 18510
	OFDM Hip Hop Magdeburg  OFDM Soipcutting 2009年05月07日再生回数 11553
	Understanding Orthogonal Signals for OFDM (Part 2)  www.mindbites.com WSOCT and SavvyPaper teach you about orthogonality used for OFDM systems including peak to average power issues or PAP as well as phase noise and inter symbol interference. We use NI Labview software as a teaching aid. 2009年08月04日再生回数 8365
	[OFDM Sim1](Multi Carrier Concept)  In this tutorial; We are going to discover the essential background behind the MCM [Multi carrier Modulation] and its main improvenemnts over single carrier wide band channel modulation نسألكم الدعاء بحسن الخاتمه 2009年12月28日再生回数 9968
	Custom OFDM Waveform Creation Using SystemVue  SystemVue generates Custom OFDM communications signals that can be used to test Layer 1 PHY architectures, both in test equipment as well as simulation. Take a tour of this capability and see how easy it can be to work with the lastest Wireless and Military communications formats. For more information: www.agilent.com For a free evaluation copy of SystemVue: www.agilent.com 2010年11月25日再生回数 2303
	OFDM in optical part 1  Generation and transmission of optical symbol in optical fibres.You can see second part of this presentation by clicking my video library above...press on " OFDM in optical part 2" 2011年05月24日再生回数 870
	Cognitive Radio Using the SystemVue OFDM Library  SystemVue's free OFDM physical layer simulation blockset is used to verify a collision-avoidance algorithm for cognitive radio. An interferer is sensed, and the OFDM carriers reallocated to avoid the source of EVM/BER degradation. For more information: www.agilent.com For a free evaluation copy of SystemVue: www.agilent.com 2010年02月19日再生回数 3581
	Optiwave.com - Coherent Optical OFDM  GET YOUR FREE DOWNLOAD: optiwave.com OptiSystem is a comprehensive software design suite that enables users to plan, test, and simulate optical links in the transmission layer of modern optical networks. Comprehensive Features: ◦Four-wave Mixing, Stimulated Brillouin Scattering (SBS), Self-Phase Modulation, Cross-Phase Modulation. ◦Stimulated Raman Scattering, and full bi-directional capabilities. ◦MLSE (Maximum Likelihood Sequence Estimate), advanced component using the Viterbi algorithm. ◦A robust library of multimode fiber models, including Parabolic-Index and Measured-Index profile. ◦The most advanced optical amplifier design library available. The professional design environment of OptiSystem can simulate emerging PON technologies, such as the various optical code-division multiple-access (OCDMA) techniques for OCDMA-PON architectures. The robust simulation environment enables users to plan, test and simulate optical links in the physical layer of a variety of passive optical networks: BPON, EPON, GPON. Website: optiwave.com Download: optiwave.com Optiwave's suite of software tools include OptiSystem, OptiFDTD, OptiBPM, OptiSPICE, OptiGrating, and OptiFiber. 2011年06月02日再生回数 2011
	Spectrum sculpting using reconfigurable OFDM  This shows the power spectral density of a reconfigurable OFDM system created using the CTVR Plastic Project platform. You may need to click on the resize button to view this properly. The RF hardware used is the Universal Software Radio Peripheral by Ettus Research LLC (ettus.com). The centre frequency of this transmission is 2.35GHz, which is in one of the test bands licenced by ComReg for cognitive radio & dynamic spectrum access testing by CTVR. This IFFT size used in this example is 256. The bandwidth of the transmitted OFDM signal is 1MHz. In this video, the number of subcarriers used is dynamically changed from 255 subcarriers (full bandwidth OFDM) right down to zero subcarriers and back again in various contiguous and non-contiguous configurations. We use this ability to coexist with other spectrum users occupying the same frequency band. By creating nulls in the spectrum, interference to and from other users within these nulls can be minimised. Publications detailing the early experimental outcomes of this work can be found on www.ctvr.ie For more information, contact: Keith Nolan, CTVR. keithnolan AT mee.tcd.ie Paul Sutton, CTVR. suttonpd AT tcd.ie (replace AT with @) 2007年05月23日再生回数 5586