time-frequency distribution analysis
Time-frequency distribution analysis of heart rate and blood velocity variabilities in stage 24/34 chick embryos
... terms of the TFD contour plots, The treated heart-rate variability the same spectral composition as the control Figure However, the treated TFD results exhibit "hot frequency bandwidth, [r] ...
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Sweep frequency response analysis using time frequency distribution
... “SWEEP FREQUENCY RESPONSE ANALYSIS (SFRA) USING TIME FREQUENCY DISTRIBUTION (TFD)” and found that it has comply the partial fulfillment for awarding the degree of Bachelor of Electrical ...
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Time-Frequency Analysis and Harmonic Gaussian Functions
... for time-frequency analysis is ...Gaussian distribution, properties of Hermite polynomials and Fourier ...the time variable , a set of functions Ψ which depend on time, ...
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Spatial time frequency distribution of cross term based direction of arrival estimation for weak non stationary signal
... instantaneous frequency areas and the cross terms as oscillatory magnitudes along the geometrical middle point of auto- terms ...bilinear time-frequency transform- ...the time-frequency ...
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A general theory on frequency and time–frequency analysis of irregularly sampled time series based on projection methods – Part 2: Extension to time–frequency analysis
... the time–frequency plane, plus a polynomial trend, plus a stationary Gaussian continuous autoregressive-moving-average (CARMA) ...a time-dependent Gaussian function with a variance depending on the ...
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Estimating the flood frequency distribution at seasonal and annual time scales
... flood frequency distribution at seasonal and annual time ...flood frequency regime), as well as in different selected sub-yearly periods ...flood frequency analysis, few studies ...
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Design and Optimization of Kernel Function in Time Frequency Analysis
... The time-frequency distribution reflects the frequency energy distribution of the signal in different time periods, and the time-frequency analysis can ...
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A general theory on frequency and time–frequency analysis of irregularly sampled time series based on projection methods – Part 1: Frequency analysis
... The paper is organised as follows. In Sect. 2, we introduce the notations and recall some basics of algebra. In Sect. 3, we define the model for the data and write the background noise term into a suitable mathematical ...
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A method for low flow estimation at ungauged sites: a case study in Wallonia (Belgium)
... as frequency and regional distribution, respectively, are closely related according to Smakhtin (2001), but arti- cles that deal with both at the same time are ...regression analysis for ...
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Spatial polarimetric time frequency distribution based DOA estimation: combining ESPRIT with MUSIC
... High Frequency Surface Wave Radar ...with time-frequency analysis method for DOA estimation of HFSWR echo signals, which can make full use of the spatial, time-frequency, and ...
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Time Frequency Analysis methods: A Comparative study
... in frequency contents of the non-stationary signal with good ...the frequency changes of the non-stationary ...the time at which the changes in frequency may ...energy distribution ...
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Systolic blood pressure but not electrocardiogram QRS duration is associated with heart rate variability (HRV): a cross-sectional study in rural Australian non-diabetics
... sensitivity analysis on HRV parameter ...Sensitivity analysis showed that HRV outliers had no in- fluence on the association between HRV parameters and QRS ...the distribution of HRV domains (without ...
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Cross Time-Frequency Analysis of Gastrocnemius Electromyographic Signals in Hypertensive and Nonhypertensive Subjects
... the time-frequency analyses of the signals. By review and analysis, we have developed several parameters by which we gauge each subjects’ overall fitness as it pertains to muscle activation for ...
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Possibility for Recognition of Psychic Brain Activity with Continuous Wavelet Analysis of EEG
... energy distribution are constructed (see Figure ...of time-frequency analysis of these two episodes with wavelet-based methods: wavelet spectrums (Figure 2(b), Figure 2(c)), ...
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Research and Comparison of Time-frequency Techniques for Nonstationary Signals
... in frequency domain. The time-frequency techniques may give a comprehensive description of signals in time-frequency ...five time-frequency analysis methods, i.e., ...
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High-Resolution Time-Frequency Methods' Performance Analysis
... use, distribution, and reproduction in any medium, provided the original work is properly ...quadratic time-frequency distributions (TFDs) including the ones obtained by the reassignment method, the ...
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Time-Frequency Analysis and Its Application in Digital Watermarking
... of time-frequency analysis have been intensively studied over the last two decades ...cient analysis of nonstationary signals, such are radar, sonar, biomedical, seismic, and multimedia ...
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TRANSFORMER FAULT DETECTION USING DWT-DCT
... in time or in frequency ...in time-frequency ...of analysis, these two currents can be separated simply since the distribution of energy in time and frequency ...
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Real time updating of the flood frequency distribution through data assimilation
... The analysis of the observed mean daily flow values suggests the existence of LTP in both study sites with H values above ...Gaussian distribution function to model the above dependence; 10 and 8 % ...
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Network Traffic Classification under Time-Frequency Distribution
... tries to assess and optimize the aforementioned characteristics by defining prior- ity levels based on the criticality of each flow [14]. Accurate traffic classification is a challenging task and is considered as ...
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