From: Automatic identification of inertial sensor placement on human body segments during walking
 |  | Feature |  |
---|---|---|---|
Description | a | ω | α |
 RMS of the | |||
-magnitude | RMS{ ||a||} | RMS{ ||ω||} | RMS{ ||α||} |
-x-component | RMS{ a x } | RMS{ ω x } | RMS{ α x } |
-y-component | RMS{ a y } | RMS{ ω y } | RMS{ α y } |
 Variance of the | |||
-magnitude | Var{ ||a||} | Var{ ||ω||} | Var{ ||α||} |
-x-component | Var{ a x } | Var{ ω x } | Var{ α x } |
-y-component | Var{ a y } | Var{ ω y } | Var{ α y } |
-z-component | Var{ a z } | Var{ ω z } | Var{ α z } |
 Sum of cc’s of a sensor with all other sensors of the | |||
-magnitude | Σ cc{ ||a||} | Σ cc{ ||ω||} | Σ cc{ ||α||} |
-x-component | Σ cc{ a x } | Σ cc{ ω x } | Σ cc{ α x } |
-y-component | Σ cc{ a y } | Σ cc{ ω y } | Σ cc{ α y } |
-z-component | Σ cc{ a z } | Σ cc{ ω z } | Σ cc{ α z } |
 The maximum value of the cc’s of a sensor with all other sensors of the | |||
-magnitude | Max{cc{ ||a||}} | Max{cc{ ||ω||}} | Max{cc{ ||α||}} |
-x-component | Max{cc{ a x }} | Max{cc{ ω x }} | Max{cc{ α x }} |
-y-component | Max{cc{ a y }} | Max{cc{ ω y }} | Max{cc{ α y }} |
-z-component | Max{cc{ a z }} | Max{cc{ ω z }} | Max{cc{ α z }} |
 The inter-axis cc’s of a sensor between the | |||
-x- and y-axes | cc{ a x ,a y } | cc{ ω x ,ω y } | cc{ α x ,α y } |
-x- and z-axes | cc{ a x ,a z } | cc{ ω x ,ω z } | cc{ α x ,α z } |
-y- and z-axes | cc{ a y ,a z } | cc{ ω y ,ω z } | cc{ α y ,α z } |