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- W2357046398 abstract "Due to the effects of spikes and /or motion artifacts,gastric electrical activities(GEA) often contain sharp transitions.Robust time delay estimation method based on least mean p-norm blind channel identification(BCILMP) was proposed and applied to estimate the propagation velocities of GEA.Compared with least mean square error time delay estimation(LMSTDE) algorithm,the BCILMP provides good performance in both Gaussian and impulsive noise environments.The performance of the novel method was investigated by using computer simulations.BCILMP was used to estimate the propagation velocities of four-channel gastric electrical recordings in gastroparetic patients.The results show that the average velocities of GEA in them are slower than those in normal subjects.The propagation of gastric slow waves was along the greater curvature from upper 1/3 of the corpus toward the pylorus,but not all of the variability of the propagation velocity increased monotonously.The propagation of the gastric slow wave is one of the most important spatial characteristics of GEA.The time delay estimation(TDE) is an approach to quantitatively assess the propagation velocity and pattern of GEA." @default.
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- W2357046398 date "2007-01-01" @default.
- W2357046398 modified "2023-09-27" @default.
- W2357046398 title "Robust Propagation Velocity Estimation of Gastric Electrical Activity" @default.
- W2357046398 hasPublicationYear "2007" @default.
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