Investigation of Fault-Tolerant Adaptive Filtering for Noisy ECG Signals

2007 ◽  
Author(s):  
Nian Zhang
Keyword(s):  
Adaptive Filtering ◽  
Fault Tolerant ◽  
Ecg Signals

scholarly journals A SINS/BDS Integrated Navigation Method Based on Classified Weighted Adaptive Filtering

2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Xuchao Kang ◽  
Guangjun He ◽  
Xingge Li
Keyword(s):  
Adaptive Filtering ◽  
Navigation System ◽  
Fault Tolerant ◽  
Hypothesis Test ◽  
Integrated Navigation ◽  
Integrated Navigation System ◽  
Covariance Matching ◽  
Uncertain Model ◽  
Navigation Accuracy ◽  
Navigation Method

Aiming at the problem that the accuracy and stability of SINS/BDS integrated navigation system decrease due to uncertain model and observation anomalies, a SINS/BDS integrated navigation method based on classified weighted adaptive filtering is proposed. Firstly, the innovation covariance matching technology is used to detect whether there is any abnormality in the system as a whole. Then the types of anomalies are distinguished by hypothesis test. Different types of anomalies have different effects on state estimation. Based on the dynamic changes of innovation, different adaptive weighting methods are adopted to correct navigation information. The simulation results show that this method can effectively improve the fault-tolerant performance of integrated navigation system in complex environment with unknown anomaly types. When both model anomalies and observation anomalies exist, the speed and position accuracy are increased by 42% and 24% compared with the standard KF, 38% and 22% compared with the innovation orthogonal adaptive filtering, which has higher navigation accuracy.

A real-time adaptive filtering approach to motion artefacts removal from ECG signals

2010 ◽  
Vol 3 (3/4) ◽  
pp. 233 ◽  
Author(s):  
Nicola Martini ◽  
Matteo Milanesi ◽  
Nicola Vanello ◽  
Vincenzo Positano ◽  
Maria Filomena Santarelli ◽  
...  
Keyword(s):  
Real Time ◽  
Adaptive Filtering ◽  
Motion Artefacts ◽  
Ecg Signals ◽  
Filtering Approach
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