Correction of Misalignment Errors in the Integrated GNSS and Accelerometer System for Structural Displacement Monitoring

Figure 4

Displacement solutions and their errors for the test with simulated sinusoidal displacements. (a) GNSS data only. (b) Accelerometer data only after a high-pass filter. (c) GNSS and accelerometer data fusion with EMD. (d) GNSS and accelerometer data fusion with CMRKF. (e) GNSS and accelerometer data fusion with CMRKF-MA. (f) GNSS and accelerometer data fusion with UMRKF-MA.