requirement of frequency domain analysis in multimedia
Frequency-Domain Analysis
... 120 FREQUENCY- DOMAIN ANALYSIS There is some ambiguity in the published literature regarding the definition of what is called the Nyquist frequency. Most of the books define half the sampling frequency ... sampling frequency of 0.8π , instead of the original frequency of 2π .If the sampling frequency in this example is 10,000 Hz, then the Nyquist fre-quency is 5000 Hz, and therefore the input signal ... between 1500 and 2000 Hz. Since the maximum frequency in theoutput signal is 2000 Hz, one might think of reconstructing the continuous-timesignal using a sampling frequency of 4000 Hz. But this is...
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Báo cáo hóa học: " Editorial Human-Activity Analysis in Multimedia Data" pdf
... accompanying text, andtypically hinges on a host of machine-learning methodolo-gies to handle the inherent variability and complexity of theensuing features. The computational efficiency of the ... use of a broader spectrum of multimedia information, comple-menting video with audio or text information as well as othertypes of sensor signals, whenever available.The first group of papers in ... original work is properly cited.Many important applications in multimedia revolve aroundthe detection of humans and the interpretation of their be-havior. These include surveillance and intrusion...
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Báo cáo hóa học: " Frequency Domain Detectors in Different Short-Range Ultra-Wideband Communication Scenarios" ppt
... Morosi was born in Firenze, Italy, in 1968. He received the Dr. Ing. degree in electronics engineering in 1996 and thePh.D. degree in informat ion and telecom-munication engineering in 2000 from ... corresponding time domain processing. In this paper, an original frequency domain detector(FDD) for UWB impulse radio (UWB-IR) short-range down-link communications will be proposed and simulated in ... haveto be taken into account. Frequency domain equalization (FDE) [8], proposed andstudied for a single-carrier single-user environment, is sim-ply the frequency domain analog of conventional...
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Báo cáo hóa học: " Research Article Frequency-Domain Equalization in Single-Carrier Transmission: Filter Bank Approach" doc
... benefit, since CPs addoverhead and reduce the spectral efficiency. Furthermore, in the FSE case, frequency- domain filtering with a filter bank isquite effective in suppressing strong interfering spectral ... filter banks (FBs) for frequency- domain equalization (FDE) in single-carrier systems. The key aspect is mildly frequency- selective subband processing instead of a simple complex gain factor persubband. ... is absent since it can be realized together with theequalizer in the frequency domain [1]. In the case of SSE, the folding is carried out before equal-ization, where the folding frequency is...
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Báo cáo " Quantitative distribution of groundwater chemical components in the Red River Delta based on frequency analysis " pot
... 15000-17000Fig.8. Frequency distribution of chlorineions(Cl-) in dryseason of Holoceneaquifer.Accordingly, probability distribution of chlorineions in dryseason of Holoceneaquiferis ... characterized by a fine grain size andcoarsegrainsize[4,5].Finesedimentscompos edmainly of sand in thelowerpartandweatheredclay in the upper part of VinhPhuc Formation(Q13vp). ... In this paper, by processing 760 analysis results of groundwater samples issued byDepartment of GeologyandMinerals of Vietnam,andbyusing frequency analysis techniques,theauthors...
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Báo cáo hóa học: " Permutation Correction in the Frequency Domain in Blind Separation of Speech Mixtures" ppt
... spectral continuity of the mixing (and therefore of theunmixing) fi lters is used in the initialization of the joint di-agonalization algorithm. The exploitation of the continuity of the unmixing filters ... Makino, “Es-timating the number of s ources for frequency- domain blindsource separation,” in Proceedings of the 5th International Con-ference on Independent Component Analysis and Blind SignalSeparation ... Processing, vol. 8, no. 3, pp. 320–327, 2000.[2] P. Smaragdis, “Blind separation of convolved mixtures in the frequency domain, ” in Proceedings of the InternationalICSC Workshop on Independence...
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Báo cáo hóa học: " On the Compensation of Delay in the Discrete Frequency Domain" pot
... Compensation of Delay in the Discrete Frequency Domain 2049Theoretical frequency domain SNRExperimental time domain SNRExperimental frequency domain SNR05 101520253035Ratioofnumberofbinstodelay05101520253035SNR ... and1That is, the number of bins in the frequency domain implementation isequal to the number of time domain taps. On the Compensation of Delay in the Discrete Frequency Domain 2051 of perfect delay ... ability of a DFT filterbank frequency domain filter to effect time domain delay is examined. This is achieved by comparing thequality of equalisation using a DFT filterbank frequency domain filter...
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Báo cáo y học: "Proteomic analysis of mechanisms of hypoxia-induced apoptosis in trophoblastic cells"
... many proteins involved in apoptosis, including the expression profiles of proteins involved in the mito-chondrial (bcl-2, bax, and bcl-x, etc.) and stress reac-tion-related pathways of apoptosis ... identify key molecules in the course of hy-poxia-induced apoptotic pathways. Such analysis of trophoblastic cells will, in the near future, yield in- sights into the mechanisms of preeclampsia and ... trend of protein changes for the experimental sample to control detected by using the Odyssey Infrared Imaging System. (+) means an increase of signal intensity, and (-) means a decrease of signal...
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Review and analysis of renewable energy perspectives in Serbia
... - Ministry of Mining and Energy of Republic of Serbia. Strategy of development of energy industry of Republic of Serbia until 2015, draft report, 2005. [6] EPS – Electric Power Industry of ... International Business and Cooperation, 2009. [17] Ministry of Energy and Mining. Renewable Energy in Serbia. Ministry of Energy and Mining, 2009. [18] Statistical Office of the Republic of Serbia. ... aiming in the reform and stabilization in all sectors, also including the energy sector. Within this framework, in 2004 the country adopted the Energy Law, while in 2005, the Ministry of Mining...
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Tài liệu A Comparative Analysis of Individual Communication Processes in Small docx
... turn-taking and speaking time distribution. In the following, the construct of turn-taking behaviors is reviewed.Turn-taking is the ordering of moves that involve any organized interplay of speech acts.A ... duration) in small-groupdecision-making meetings. The findings of the current study add value to a very extensiveliterature on cross-cultural communication in examining whether and how individualscommunicate ... of turn taking and speaking time in group decision-making meetings. As for Research Question 3, it first examines the impact of cultures on thedistribution of turn-takings and speaking time....
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