From: Secured ECG signal transmission for human emotional stress classification in wireless body area networks
Frequency domain {f i }, i ∈ [1, 16]
f 1
f 2
……
f 12
f 13
f 14
f 15
f 16
Frequency bands (Hz)
1024–512
512–256
0.5–0.25
0.25–0.125
0.125–0.0625
0.0625–0.03125
0.03125–0.01562