| http://www.w3.org/ns/prov#value | - FIG. 7 is a graph which illustrates the difference signal which is the raw data from the electrodes generated by a person exercising at 5 mph and which further illustrates the following signals corresponding thereto: the analog bandpass filtered (BPF) difference signal, the matched filter (MF) heart beat signal, the adaptive heart beat peak signal and the electrocardiogram (ECG) signal.
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