A New Single Trial Estimation of Evoked Potential Based on AAA-ICM
Ying Wang · Zhongguo yixue wulixue zazhi · 2007
Objective: A new single trial estimation of evoked potential,which based on auto-reference,auto-correlation,auto-adaptive interference cancellation method(AAA-ICM),was proved in this paper by the computer simulation of electroencephalo-signal and flash visual evoked potential(FVEP).Material and Method: The electroencephalo-signal and FVEP were simulated by Delphi program.And the program of extracting VEP by AAA-ICM algorithm was implemented.The extraction effect was measured by the power value and correlation value.Results: The stimulation results showed that evoked potential could be extracted from strong background brain activity.Conclusion: Contrast to the traditional superposition averaging method,it can simplify extraction method and improve quality of EP.