Wavelet Technology in Wearable Terminals For ETS-VIII Satellite

In cooperation with Communication Research Laboratory of Japan, Tokai University has developed wearable satellite terminals for jogger via ETS-VIII to monitor ECG (electrocardiogram). The ECG signals provided from three skin electrodes attached to a runner's chest wall are passed onto a CR frequency filter to remove loop-back noise generated during sampling. Following A/D conversion (250/sec, voltage/10 bit) with an A/D converter, noise is removed from the digital data obtained, using Wavelet algorithm. A filter relying on this algorithm is more effective than standard averaging FIR filters for processing ECG signals that include noise involving a number of different frequency elements. We also evaluate transmission protocol for ETS-VIII.