Research Article

A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation

Table 2

Statistics of alignment errors with classical compass alignment method.

Azimuth (°)45°90°135°180°

Pitch (minute sec)
 Limit accuracy−1.7188−2.4308−1.718901.7189
 Actual value−1.7215−2.4259−1.7215−0.01241.7092
Roll (minute sec)
 Limit accuracy1.71880−1.7189−2.4308−1.7189
 Actual value1.70920.000003−1.7092−2.4259−1.7216
Yaw (minute sec)
 Limit accuracy−13.5124013.512419.106513.5124
 Actual value−12.3632−0.015712.333317.513912.4277