The term Pattern Visually Evoked Potential (P-VEP) refers to electrical potentials which are recorded from the scalp overlying visual cortex, P-VEP waveforms are extracted from the electro-encephalogram (EEG) by signal averaging
Separation of the buried EP wave forms from the other electrical activity is accomplished by signal averaging
. Stimuli are given repetitively and the computer averages the new data acquired after each stimulus (Random EEG + EP) with the averaged results from previous stimuli stored in its memory.
Additional features include video signal display, signal peak selection and freely adjustable signal averaging
, which enables optimisation of the measurement task.
The research was financially supported by the state program "Science" # 936 "Development of medical nanosensors and hardware-software complex for noninvasive micropotential registration during human biopotential real-time measuring in wide frequency band without signal averaging
and filtration for electrophysiological research and artificial limb control".
Faulkner,"Optimum Hysteresis Level, Signal Averaging
Time and Handover Delay," Proc.
The fact that SSEP remains consistent was used to implement a signal averaging
method to extract the SSEP [4, 5].
Bunde et al., "Phase-rectified signal averaging
detects quasi-periodicities in non-stationary data," Physica A, vol.
ADLINK's 14-bit PCIe-9852 two-channel 200-MS/s digitizer also includes onboard signal averaging
. Alan Hsu.
But the initial defect of the valve can be undetected because of engine noise and signal averaging
. The model is adaptive, which means that the diagnostic program obtains the base model after each change of the drive system element.
is an effective de-noising method (15).