A variable step-size LMS filter provided better performance in mitigating motion artifact from photoplethysmographic recordings compared to an LMS filter with a fixed step-size.
Photoplethysmography (PPG) is widely used for the continuous monitoring of peripheral circulation. However, the quality of the PPG signal is degraded drastically by motion artifact caused during dynamic recordings. In this paper, a LMS filter with automatic step-size control is proposed to mitigate the effects of motion artifact in PPG recordings for long-term patient monitoring. Experimental results show that the proposed variable step-size LMS filter can provide better performance than the LMS filter with fixed step-size.
Chan et al. (Wed,) conducted a other in Motion artifact in photoplethysmographic (PPG) recordings. Variable step-size LMS filter vs. LMS filter with fixed step-size was evaluated on Performance in mitigating motion artifact. A variable step-size LMS filter provided better performance in mitigating motion artifact from photoplethysmographic recordings compared to an LMS filter with a fixed step-size.
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