frequency domain


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fre·quen·cy do·main

the expression of a function by its amplitude and phase at each component frequency, usually as determined by Fourier analysis.
References in periodicals archive ?
The Time domain and frequency domain analysis is done onto the series of successive R-R interval values.
Quantitative assessment of physiological parameters and heart rate variability techniques for analysing cardiac health
HRV is assessed either by time domain or frequency domain analyses which are including power spectral density analysis.
EVALUATION OF STRESS PARAMETERS BASED ON HEART RATE VARIABILITY MEASUREMENTS
Keywords: Single-Carrier Frequency Domain Equalizer; Inter-Symbol Interference; Doppler Effect; Vehicular Channels
ISI and PAPR immune IEEE 802.11p channels based on single-carrier frequency domain equalizer
Thus, we can expect that a joint analysis in both the time and the frequency domain may improve the accuracy of the burst suppression segmentation.
Novel Burst Suppression Segmentation in the Joint Time-Frequency Domain for EEG in Treatment of Status Epilepticus
In the literature, the decision feedback equalization (DFE) with a hybrid structure (H-DFE) [8,9], where the feedforward (FF) filter is realized in the frequency domain (FD) while the feedback (FB) filter is realized in the time domain (TD), is derived to cancel the ISI with the disadvantages of relatively high design complexity and error-propagation phenomena.
MMSE-NP-RISIC-Based Channel Equalization for MIMO-SC-FDE Troposcatter Communication Systems
Trimble 4D Control software can support optional Fast Fourier Transform (FFT) calculations to transform a real-time domain signal into a frequency domain representation.
South Africa : Trimble Launches New Version of its 4D Control Software for Professional Monitoring of Structural and Environmental Changes
The frequency domain image is one of several images made by transforming the A-scans.
Advanced acoustic methods for locating flip chip faults: echoes can reveal otherwise elusive defects beneath the die
For frequency domain analysis we used parametric and non-parametric Power Spectral Density methods as described in [3].
Spectral- and time-domain analysis of heart rate variability signals from multiple photoplethysmographic (PPG) sensors
This paper proposes a novel wideband frequency domain method for measuring time domain response with the nano-second level of equivalent pulse width at long-distance channel.
A synchronous wideband frequency-domain method for long-distance channel measurement
In OFDM [[1]] it is assumed that original transmit block (vector) X is located in the frequency domain and represents complex amplitudes of N sinusoidal subcarriers.
Singular value decomposition based Phi domain equalization for multi-carrier communication system
Comparison of frequency domain indices; Total power (male=4041+-3150ms2 vs.
Gender differences of heart rate variability in healthy volunteers
Capability: Frequency Analysis Software, or FAS, tunes servo control systems in the frequency domain.
The frequency?
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