235
Classification of Hand Motion Using Surface EMG Signals
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1
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Frequency (Hz)
300
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500
0
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Power
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1
0 0
Time (s)
(a)
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Time (s)
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300
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500
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(b)
FIGURE 12.9
STFT results at different speeds: (a) low speed and (b) high speed.
Classification of Hand Motion Using Surface EMG Signals
0.2
0.4
0.6
0.8
1
100
200
Frequency (Hz)
300
400
500
0
0.2
Power
0.4
0.6
0.8
1
0 0
Time (s)
(a)
0 0
0.2
Time (s)
0.4
0.6
0.8
1
100
200
Frequency (Hz)
300
400
500
0
0.2
Power
0.4
0.6
0.8
1
(b)
FIGURE 12.9
STFT results at different speeds: (a) low speed and (b) high speed.