Spectral EDA — vibration spectra
f
s
≈ — Hz · Nyquist — Hz
N=256 · Tukey α=0.5
x · lateral (steer)
peak
—
y · vertical (surface)
peak
—
z · longitudinal (brake/gas)
peak
—
rough (raw spectrum)
smooth (median envelope)
peak / spectral median
Start sensor
Re-centre