Cross phase coherence9/25/2023 FS - this is the sampling rate of the time-series data, in Hertz, e.g. Using these functions as building blocks, you can create additional measurement functions such as frequency response, impulse response, coherence, amplitude spectrum, and phase spectrum.timeSeries - this is the data to be analysed should be a 2-dimensional matrix of size: (number of trials/measurements) x (number of time points).Set the niRFSA devices on the front panel where the Leader sharing the LO and Ref CLK is the first element of the array. freq - this is a value indicating the frequency to be analysed, in Hertz, e.g. Open the Multichannel RFSA Synchronization VI to run phase coherent analysis on up to 4 devices in a single chassis.As a rule, the DOC varies along the beam propagation path, preventing from the efficient information recovery. The MATLAB code is contained within the following file: PhaseCoherence.m The degree of coherence (DOC) function that characterizes the second-order correlations at any two points in a light field is shown to provide a new degree of freedom for carrying information. It suggests that the relative phase between the. The mscohere function returns a value between 0 and 1 that measures the correlation between the signals, and the phase delay can be computed using the cpsd function, as per this example from the Mathworks website. The code was written using MATLAB 2014b, although uses basic MATLAB functions that are compatible with older and newer versions of MATLAB. Perhaps the built-in ' mscohere ' and ' cpsd ' functions may help you. This method could be applied to examine patterns in time-series data other than neural data. To measure the conditional phase shift imprinted by one control photon on the stored signal field, control light (a weak coherent state with less than one photon on average during the storage time) impinges on the optical cavity, and light-shifts the atomic levels. This example shows how to use the cross spectrum to obtain the phase lag between sinusoidal components in a bivariate time series. International journal of audiology, 42(4), 177-219. Cross Spectrum and Magnitude-Squared Coherence. Human auditory steady-state responses: Respuestas auditivas de estado estable en humanos. The method is described in the following paper: Note that the same method is sometimes referred to as the phase locking value (PLV)-although some implementations of the PLV use a time-series filter rather than conducting the analyses in the frequency domain, as used here. For example, researchers often choose to investigate phase consistency at the frequency of a presented stimulus. This method is often used in electro-encephalography (EEG) analyses to determine the phase consistency of the neural response at a particular frequency, across trials. The phase coherence value lies between 0 and 1: 1 indicates perfect phase coherence and 0 indicates no phase coherence. The phase coherence value indexes how consistent the phase is across different measurements. This function calculates phase coherence at a frequency of interest, across different measurements. Function to calculate consistency of phase at a given frequency across measurements About the method Some background
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