Application of adaptive noise canceller based on fixed-point algorithm for real-time somatosensory evoked potential monitoring / 国际生物医学工程杂志
International Journal of Biomedical Engineering
;
(6): 197-200,204, 2011.
Artigo
em Chinês
| WPRIM
| ID: wpr-597978
ABSTRACT
ObjectiveTo efficiently detect somsatosensory evoked potential (SEP) using field programmable gate array (FPGA) real-time system, fixed-point algorithm based adaptive noise canceller (ANC) was designed to improve signal to noise ratio (SNR). MethodsWith the optimization of important parameters that influence the performance of fixed-point algorithm ANC, the performance was compared to that of floating-point algorithm ANC which was isolated from the effect of quantization error. Results In the simulation study, the outputs of fixed-point-based ANC showed a little higher distortion from real SEP signals than that of floating-point algorithm ANC. In the optimal selection of μ value, fixed-point algorithm ANC could get as good results as floating-point algorithm. Conclusion With appropriate parameter values, fixed-point algorithm ANC is able to improve SNR of SEP as well as that of fixed-point algorithm ANC.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo prognóstico
Idioma:
Chinês
Revista:
International Journal of Biomedical Engineering
Ano de publicação:
2011
Tipo de documento:
Artigo
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