time-frequency-distribution method
Spatial time frequency distribution of cross term based direction of arrival estimation for weak non stationary signal
... novelty method to estimate the direction of arrival (DOA) of weak non-stationary signal in scenario for strong non-stationary interference signals and Gaussian white ...The method utilizes spatial ...
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Radar Signal Intra Pulse Feature Extraction Based on Improved Wavelet Transform Algorithm
... analysis method, however it didn’t study the problem that the time resolution and the frequency resolution cannot be taken into account ...a method of multi resolution signal analysis using ...
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Estimating the flood frequency distribution at seasonal and annual time scales
... proposed method to the seasonal weighting scheme that is used in the optimisation procedure, and to the selected number and duration of seasons, as well as the degree of their mutual ...flood frequency ...
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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 ...low-flow frequency in ...
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Polarization Filtering Method for Suppressing Surface Wave in Time Frequency Domain
... Figure 2(a) is a shot record of converted wave acquired in a certain area of Sau- di Arabia. The surface wave has a wide spatial distribution and strong energy in the original single shot, which seriously pollutes ...
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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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ESMD Method for Frequency Distribution of Tank Surface Temperature under Wind Effect
... long time to wait for a real stationary state); the second, the third and the fourth experiments are for the cases with wind speed 3 m/s, 4 m/s and 5 m/s ...
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Statistical problems in measuring surface ozone and modelling its patterns
... One method for summarising the behaviour of pollutant levels has been to ignore the time ordering of the observations and to fit a frequency distiibution to the set of all measurements of pollutant ...
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A Robust Joint Estimation Method of Time Delay and Doppler Frequency Shift
... the time-frequency analysis of the cubic phase signal in ...Wigner–Ville distribution (WDL)was combined with CAF in ...better method which considers both Non-Gaussian noise model and ...
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Separating More Sources Than Sensors Using Time-Frequency Distributions
... Since time-frequency (TF) signal processing provides effective tools for dealing with nonstationary signals, we pro- pose a new separation method that is based on time-frequency ...
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Sweep frequency response analysis using time frequency distribution
... There are a few of faulty diagnostic technique that can be applied including method recovery voltage measurement (RVM), the dissolved gas in oil analysis (DGA). However, all of these methods are not relevant in ...
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A New Method for Visual Real Time Monitoring of Low Frequency Oscillation
... low frequency oscillation control in power ...visual method for the control center of power grids to monitor low frequency ...two-dimensional time-frequency figures which showed the ...
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Behaviour of passage time for a queueing network model with feedback: a simulation study
... Job stack. It is an enumeration by service centre of all the jobs of the network. In our model the job stack process is called Z(t), where Z(t) is the number of jobs waiting or in service at centre 1 at time t. It ...
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Time frequency analysis of electrical brain responses to nociceptive stimulation
... gamma frequency range (30-100 Hz) have been frequently observed [13] [14] ...a time-locked manner with respect to the stimulus but are not ...to time-frequency analysis and averaged ...
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Cross Time-Frequency Analysis of Gastrocnemius Electromyographic Signals in Hypertensive and Nonhypertensive Subjects
... with time, X, Y , and pressure values for each sampled moment for which a pressure sensor was ...their time instances flagged, as described in Section 2.2. These time instances correspond directly to ...
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Algorithms for Blind Components Separation and Extraction from the Time Frequency Distribution of Their Mixture
... In this paper, we presented two novel blind (i.e., without a priori information) algorithms to extract separately all the components, using a “cross-terms free” TFD, of a given mix- ture signal. The first algorithm ...
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The Factors Influencing Consumer Purchase Intention For Cosmetic Products At Malaysian Higher Education Institution
... Nowadays, the changing lifestyle and culture has led to the rapid changing consumer preference and increasing consumer demand in cosmetic products. Cosmetic plays an important role in enhancing consumer’s appearance ...
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DOA Estimation Using Time-Frequency Conversion Pre-Processing Method
... transform method into several subbands MUSIC scenarios ...a time-frequency conversion pre-processing method with a signal OBW (Occupied Bandwidth) analysis was proposed and the effectiveness ...
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Arrhythmia ECG Signal Analysis using Non Parametric Time Frequency Techniques
... which frequency contents change over time ...of time can be extremely difficult to ...proper time-frequency technique that can resolve the problem of the Fourier transform and uncover ...
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Context-based adaptive arithmetic coding in time and frequency domain for the lossless compression of audio coding parameters at variable rate
... the distribution of MDCT coefficients is pre-defined from training statistics, and the adaptation mechanism is not flexible enough to combat the possible statistics mismatch, such as the techniques of switching ...
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