Randy Cole

3Joseph P Campbell
3Connie Harris
3Eddie Curtis
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This paper presents a method of extracting primary heart sound signals from chest-worn accelerometer data in the presence of motion artifacts. The proposed method outperforms noise removal techniques such as wavelet de-noising and adaptive filtering. Results from six subjects show a primary heart signal detection rate of 99.36% with a false positive rate of(More)
This work describes the factors limiting the performance in practical implementations of digital active noise cancellation (ANC) in commercial systems. This includes the codec delay, the secondary path variability, and the acoustic limitations. The causes for each limiting factor are studied and solutions are proposed that significantly improve system(More)