error control techniques for digital communication
Comparison of current control techniques for active filter application
... previously described current control techniques for the active filter. The controllers include the implementationof all the aforementioned refinements, so that the achievedperformance is, as realistically ... the achievable performance on the slope of the currentreference.The improvements in the control techniques result in rathersatisfactory performance levels for all three controllers. How-ever, ... current error, turns out to be better than theother techniques. The deadbeat controller, which has theadvantage of being suitable for a fully digital implementation,is limited in its performance...
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Current control techniques for three phase voltage source PWM converters a survey
... FL controller, (b) control surface of con-ventional PI controller, (c) control surface of FL controller; comparison ofcurrent-tracking performance with PI and FL controller: (d) current waveform,and ... partthe static error can be reduced tozero, the transient error may be unacceptably large. Therefore,feedforward signals for the referenceand disturbanceinputs are added to the feedback control ... favors fully digital control. Thus, the methods which allow digital implementation arepreferred, even with some sacrifice in accuracy and dynamicperformance. In particular, for low-performance applicationswith...
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Multicarrier Techniques for 4G Mobile Communications
... information symbol at the kth subcarrier, and f (t)isthe pulse waveform of the symbol. When the rectangular pulse waveformis used, f (t) is given byMulticarrier Techniques for 4G MobileCommunicationsShinsuke ... Techniques for 4G Mobile Communications, Shinsuke Haraand Ramjee PrasadOFDM for Wireless Multimedia Communications, Richard van Nee andRamjee PrasadRadio over Fiber Technologies for Mobile Communications ... Publication DataHara, ShinsukeMulticarrier techniques for 4G mobile communications. — (Artech House universalpersonal communications series)1. Mobile communication systemsI. Title II. Prasad,...
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Tài liệu Multicarrier Techniques for 4G Mobile Communications P1 docx
... as its Fourier transform:DH() =͵+∞−∞H(⌬t)e−j2⌬td⌬t (2.27)Multicarrier Techniques for 4G MobileCommunicationsMulticarrier Techniques for 4G MobileCommunicationsShinsuke ... 1990s, such asGlobal Systems for Mobile Telecommunications (GSM) [1], Personal Digital Cellular (PDC) [2], and Interim Standard (IS)-95 [3], on digital technologies for voice-oriented traffic. ... techniques to recent applications aiming at the 4G systems. Therefore, we decided towrite a book on multicarrier techniques for 4G mobile communicationssystems.xv15Characteristics of Multipath...
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Tài liệu Multicarrier Techniques for 4G Mobile Communications P doc
... to:d=−fDsind(2.31)therefore, finally, substituting (2.31) into (2.30), we obtain the Dopplerpower spectrum:Figure 2.6 Jakes’ model.30 Multicarrier Techniques for 4G Mobile Communicationsf (t) ... rectangular pulse waveforms for subcarriers, the frequency spectra of the waveforms are widely spread andoverlapped [see Figure 3.3(b)], although it can save the required bandwidth.Therefore, the concept ... written in a column vector form asS = [s (iTs+ tspl), ,s(iTs+ qtspl), ,s(iTs+ NSCtspl)]T(3.8)= W−1(NSC)Ci28 Multicarrier Techniques for 4G Mobile CommunicationsFigure 3.1...
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Multimedia Security:: Steganography and Digital Watermarking Techniques for Protection of Intellectual Property doc
... system, digital watermarking for PCM audio, digital watermarking for wav-table synthesis audio, and digital watermarking for compressed audio. Based on the current technology used in digital ... andcompressed video. Proceeding of the SPIE Digital Computing Tech-niques and Systems for Video Communication, 2952, (pp. 205-213). Digital Watermarking for Protection of Intellectual Property 17Copyright ... solved before digital watermarking can beclaimed to be the ultimate solution for copyright ownership protection in digital media. One of these problems is the effect of geometrical transformations...
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adobe digital imaging how-tos 100 essential techniques for photoshop cs5, lightroom 3, and camera raw 6
... resize each thumbnail, and each has a slide-like border that supplies additional information and controls for manipulating that le (Figure 1b). The Grid view is discussed in Tip #12.The Lightroom ... appears, and ll in the values for the elds that will apply to all the images that will use the preset. As you enter the text for each item, the check box for that eld will be selected automatically. ... modular windows, and edit my raw photos.ptgDAN MOUGHAMIANADOBE® DIGITAL IMAGING HOW-TOs 100 ESSENTIAL TECHNIQUES FOR PHOTOSHOP CS5, LIGHTROOM 3, AND CAMERA RAW 6ptg31#13: Comparing...
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creative sequencing techniques for music production a practical guide to pro tools, logic, digital performer, and cubase
... keyboard controller.111.3 The Music EquipmentTable 1.2 (Continued) Controller no. Function Use32–63 LSB for Control 0–31 These controllers allow you to have a finer scale for the corresponding controllers ... Sound Controller 1 Usually associated with the way the synthesizer produces the sound. It can control, for example, the sample rate of a waveform in a wave table synthesizer71 Sound Controller ... note73 Sound Controller 4 Controls the attack stage of the VCA of a sound, allowing you to adjust the time that the wave form takes to reach its maximum amplitude74 Sound Controller 5 Controls...
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Báo cáo hóa học: " Editorial Advances in Error Control Coding Techniques" ppt
... CorporationEURASIP Journal on Wireless Communications and NetworkingVolume 2008, Article ID 574783, 3 pagesdoi:10.1155/2008/574783EditorialAdvances in Error Control Coding Techniques Yonghui Li,1Jinhong ... approach for enhancing decoder performancein presence of trapping sets by introducing a new conceptcalled trapping set neutralization is proposed in the fifthpaper “New technique for improving performance ... and iterative decodingof LDPC codes over rings for phase-noisy channels,” byKaruppasami and Cowley, a design and decoding method for LDPC codes for channels with phase noise is proposed. Thenew...
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Báo cáo hóa học: " Research Article An Iterative Soft Bit Error Rate Estimation of Any Digital Communication Systems Using a Nonparametric Probability Density Function" pptx
... used for estimating bit error rate(BER) of digital communication systems. The MC method isused when we cannot analytically compute the performanceof communication system receivers. Unfortunately, ... consistent.References[1] M. C. Jeruchim, Techniques for estimating the bit error rate inthe simulation of digital communication systems,” IEEE Journalon Selected Areas in Communications, vol. 2, no. 1, ... ConclusionsIn this paper, we have suggested a new iterative soft bit error rate estimation for the study of any digital communication system performance. This method is based on the use ofnonparametric...
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