time-frequency estimation techniques
Carrier Frequency Offset Estimation for OFDM Systems Using Time/Frequency-Domain Techniques
... to frequency synchronization problem. In this paper focus is on frequency offset, which may be caused by Doppler shift in the channel, or by the difference between the transmitter and receiver local ...
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Techniques for Optimization in Time Delay Estimation from Cross Correlation Function
... measuring time delay estimation(TDE) and is being used in various communication and voice processing ...with time delay estimation using conventional cross correlation method when two signals ...
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Robust Blind Frequency and Transition Time Estimation for Frequency Hopping Systems
... (FHSS) techniques are widely used in military communications for combating narrowband interference and for security ...the estimation in FHSS are transition time and hopping ...estimating ...
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Time-Delay Estimation in Dispersed Spectrum Cognitive Radio Systems
... are identical in this scenario, they are referred to as “selection combining” in the figure. It is observed from Figure 7 that the optimal combining has better performance than the selection combining and the equal ...
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Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
... High-resolution techniques such as reduced rank approximation of the backward linear prediction data matrix can then be applied for frequency esti- ...prediction frequency estimation approach ...
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A New Approach for Estimation of Instantaneous Mean Frequency of a Time-Varying Signal
... instantaneous frequency (IF) of a signal is a param- eter of practical importance in situations such as seis- mic, radar, sonar, communications, and biomedical appli- cations [1, 2, 3, ...induced frequency ...
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DOA Estimation Using Time-Frequency Conversion Pre-Processing Method
... DOA estimation techniques is generally based on ideal conditions of a signal source and sensor ...DOA estimation system is also affected by noise contribution and interferences from installation ...
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Performance Analysis of Frequency Estimation Using Different Adaptive Filters Techniques.
... The Echo is the phenomenon in which delayed and distorted version of an original sound or electrical signal is reflected back to the source. Two main characteristics of echo are reverberation and latency. Reverberation ...
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Heart Rate Variability Characterization Using a Time-Frequency Based Instantaneous Frequency Estimation Technique
... joint time-frequency domain where the most valuable information is encoded in the IF of the different TF ...with time. TF-based techniques have been used in [4, 5, 6] to estimate the ...
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COMPARATIVE ANALYSIS OF TIME DOMAIN AND FREQUENCY DOMAIN BLIND AUDIO SOURCE SEPARATION TECHNIQUES
... (4) Once algorithms stops after fulfilling the stopping criteria. Weight needs to normalise and centre removal performed. And obtained estimated weight matrix applied as per equation (2) for estimation of source ...
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The search for co integration between money, prices and income: low frequency evidence from the Turkish economy
... contemporaneous time series estimation techniques, our estimation results reveal that stationarity characteristics of the velocities of currency in circulation and the broad money aggregate in ...
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Performance evaluation of MIMO OFDM implementation on Wireless Open Access Research Platform (WARP)
... requires time synchronization, channel estimation and frequency offset estimation, which is performed by using a preamble consisting of one or more training symbols [5], [6], ...OFDM ...
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Frequency Estimation Using Time-Frequency Based Methods
... size, time shift, and frequency range, on the algorithm’s performance is also ...on time- frequency planes for illustration ...both techniques is also carried out to conclude whether ...
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TIME SERIES ANALYSIS ON EXPORTS AND ITS DETERMINANTS
... Once the cointegration is confirmed to exist between variables, then the third step entails the construction of error correction mechanism to model dynamic relationship. The purpose of the error correction model is to ...
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Hydrologic Calculator: An Educational Interface for Hydrological Processes Analysis
... The completed methods of “Hydrologic Calculator” model were validated or tested with the help of standard examples from different textbooks. The results obtained using the Hydrologic Calculator matched exactly with the ...
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Fusion of Foreground Object in Domain Motion Information for Video Summarization
... Thus, we proposed a novel system to summarize surveillance video combining foreground object with movement data in spatial and frequency domain. As indicated by [1], foreground object actually contain detailed ...
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A Robust Joint Estimation Method of Time Delay and Doppler Frequency Shift
... sampling frequency. Time delay is set as 16 sample intervals and theDoppler frequency shift (DFS) is set as ...carrier frequency but a different baud rate a d 2 = ...
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Spatial time frequency distribution of cross term based direction of arrival estimation for weak non stationary signal
... the estimation of weak non-stationary signal is an important and difficult problem when both strong and weak signals are coexisting particularly because the weak non-stationary signals are often submerged in ...
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On the orthogonalised reverse path method for nonlinear system identification
... alternative time domain approach, referred to as the Orthogonalised Reverse Path (ORP) ...initial time data and remove the effects of nonlinearity before passing to the frequency domain, hopefully ...
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Estimation du Beta Tempo fréquentiel de la Droite de Marché Une approche par les ondelettes continues
... Time-Frequency varying Beta Estimation -A continuous wavelets approachMESTRE, Roman and TERRAZA, Michel University of Montpellier, MRE.[r] ...
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