Journal of Sensors

Research Article

Robust Modeling of Low-Cost MEMS Sensor Errors in Mobile Devices Using Fast Orthogonal Search

Table 1

Performance summary of AR models obtained by Yule-Walker, Burg, and FOS over one hour of accelerometer-Y measurements: first-order FOS: only linear model terms; second-order FOS: linear and cross-product model terms.
Modelling techniqueModel MSE (m/s2)2Corresponding position error (m)Computational time (s)
Model order (maximum output lag L) 1
Yule-Walker5 × 10−94580.25
Covariance/Burg3 × 10−11350.23
CP degree = 1 FOS1 × 10−11200.13
CP degree = 2 FOS1 × 10−11200.36
Model order (maximum output lag L) 10
Yule-Walker5 × 10−94580.69
Covariance/Burg2 × 10−1290.45
CP degree = 1 FOS3 × 10−1410.30
CP degree = 2 FOS2 × 10−160.090.60