SHEN Wentao, ZHAO Hongze, WANG Sikai, et al. Design of RSVP-based BCI system based on FPGA[J]. 2020, 39(9): 73-76+83. DOI: 10.13873/J.1000-9787(2020)09-0073-04.
Brain-computer interface( BCI) system based on rapid serial visual presentation( RSVP) is mainly used to quickly classify images. To meet demands of mobile and intelligent development of BCI
an field programmable gate array( FPGA) based RSVP BCI system is proposed
also hierarchical discriminant component analysis( HDCA) is realized by optimization of fixed-point and look-up table. Experimental results prove that average classification accuracy of designed system is only 0. 935 5 % lower than that of PC system
and discriminant time of each image is 3 ms
thus it can satisfies requirements of mobile implementation of RSVP BCI system.