requirement of frequency domain analysis in multimedia
Frequency-Domain Analysis
Ngày tải lên :
29/09/2013, 21:20
... 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 the
output signal is 2000 Hz, one might think of reconstructing the continuous-time
signal 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
Ngày tải lên :
22/06/2014, 19:20
... accompanying text, and
typically hinges on a host of machine-learning methodolo-
gies to handle the inherent variability and complexity of the
ensuing 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 other
types of sensor signals, whenever available.
The first group of papers in ... original work is properly cited.
Many important applications in multimedia revolve around
the 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
Ngày tải lên :
22/06/2014, 22:20
... Morosi was born in Firenze, Italy,
in 1968. He received the Dr. Ing. degree
in electronics engineering in 1996 and the
Ph.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 ... have
to be taken into account.
Frequency domain equalization (FDE) [8], proposed and
studied 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
Ngày tải lên :
22/06/2014, 23:20
... benefit, since CPs add
overhead and reduce the spectral efficiency. Furthermore, in
the FSE case, frequency- domain filtering with a filter bank is
quite 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 per
subband. ... is absent since it can be realized together with the
equalizer 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
Ngày tải lên :
22/03/2014, 12:20
... 15000-17000
Fig.8. Frequency distribution of chlorineions(Cl
-
) in
dryseason of Holoceneaquifer.
Accordingly, probability distribution of
chlorineions in dryseason of Holoceneaquifer
is ... characterized by a fine grain size and
coarsegrainsize[4,5].Finesedimentscompos ed
mainly of sand in thelowerpartandweathered
clay in
the upper part of VinhPhuc Formation
(Q
1
3
vp). ... In this paper, by processing 760 analysis results of groundwater samples issued by
Department of GeologyandMinerals of Vietnam,
andbyusing frequency analysis techniques,the
authors...
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Báo cáo hóa học: " Permutation Correction in the Frequency Domain in Blind Separation of Speech Mixtures" ppt
Ngày tải lên :
22/06/2014, 23:20
... spectral continuity of the mixing (and therefore of the
unmixing) 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 blind
source separation,” in Proceedings of the 5th International Con-
ference on Independent Component Analysis and Blind Signal
Separation ... 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 International
ICSC Workshop on Independence...
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Báo cáo hóa học: " On the Compensation of Delay in the Discrete Frequency Domain" pot
Ngày tải lên :
23/06/2014, 01:20
... Compensation of Delay in the Discrete Frequency Domain 2049
Theoretical frequency domain SNR
Experimental time domain SNR
Experimental frequency domain SNR
0
5 101520253035
Ratioofnumberofbinstodelay
0
5
10
15
20
25
30
35
SNR ... and
1
That is, the number of bins in the frequency domain implementation is
equal 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 the
quality 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"
Ngày tải lên :
31/10/2012, 15:12
...
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
Ngày tải lên :
05/09/2013, 16:10
... - 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
Ngày tải lên :
09/12/2013, 16:15
... 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-group
decision-making meetings. The findings of the current study add value to a very extensive
literature on cross-cultural communication in examining whether and how individuals
communicate ... of turn taking and speaking time in group decision-
making meetings. As for Research Question 3, it first examines the impact of cultures on the
distribution of turn-takings and speaking time....
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