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Journal of System Simulation

Abstract

Abstract: In the process of brain-computer interface(BCI) technology stepping from laboratory to practical application scenarios, it is difficult to make an accurate prediction and evaluation of the effect of real environment factors on the system performance. Therefore, a research method based on a multifactor simulation experiment was proposed. A controllable simulation experiment environment was constructed, and the parametric modeling of two key physical environmental factors, namely noise and light, was carried out. By taking the number of electroencephalogram channels as the system parameter, this paper systematically studied the influence mechanism of the aforementioned factors on the decoding performance of P300-BCI. The simulation experiment results show that noise has a significant impact on the decoding performance of the system. The accuracy is higher in a low noise environment, compared with that in a high noise environment. The light factor has no obvious effect on the system performance. As the number of decoding channels decreases, the accuracy shows a corresponding decline. In addition, no significant difference is observed in decoding performance between three channels and all channels. This study not only provides empirical data for the performance modeling of the BCI system in a non-ideal environment but also provides methodological reference for the adaptive design and simulation verification of this technology in real scenarios.

First Page

746

Last Page

757

CLC

TP391.9

Recommended Citation

Ge Xiaofei, Lian Jinling, Han Jin, et al. Research on Performance Evaluation of P300 Brain-computer Interface Under Environment Modeling and Simulation[J]. Journal of System Simulation, 2026, 38(3): 746-757.

Corresponding Author

Lian Jinling

DOI

10.16182/j.issn1004731x.joss.25-0098

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