Real-time digital median frequency estimator for surface myoelectric signals.
basic_science · Level V
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- Record sourced from PubMed, PMID 2066147.
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Abstract
A prototype instrument is described that uses a digital signal processor to estimate the median frequency of the myoelectric signal in real time. A set of tenth-order digital low-pass filters is used to track the median frequency. An estimate of frequency is obtained once every 256 ms with a resolution of 1 Hz.
Medical subject headings
- Electromyography
- Signal Processing, Computer-Assisted