1—4–6 Hz signal power |
X, Y, Z—wrist and ankle |
6 |
2—0.5–15 Hz signal power |
X, Y, Z—wrist and ankle |
6 |
3—Percentage power of frequencies >4 Hz |
X, Y, Z—wrist and ankle |
6 |
4—Number of autocorrelation peaks |
X, Y, Z—wrist and ankle |
6 |
5—Sum of autocorrelation peaks |
X, Y, Z—wrist and ankle |
6 |
6—Amplitude of the first autocorrelation peak |
X, Y, Z—wrist and ankle |
6 |
7—Lag of the first autocorrelation peak |
X, Y, Z—wrist and ankle |
6 |
8—Spectral entropy |
X, Y, Z—wrist and ankle |
6 |
9—First dominant frequency |
X, Y, Z—wrist and ankle |
6 |
10—Power of first dominant frequency |
X, Y, Z—wrist and ankle |
6 |
11—Second dominant frequency |
X, Y, Z—wrist and ankle |
6 |
12—Power of second dominant frequency |
X, Y, Z—wrist and ankle |
6 |
13—Cross-correlation |
X and Y—wrist and ankle |
2 |
14—Cross-correlation |
X and Z—wrist and ankle |
2 |
15—Cross-correlation |
Y and Z—wrist and ankle |
2 |
Total Number of Features
|
78 |