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 (°) | 0° | 45° | 90° | 135° | 180° |
| Pitch (minute sec) | | | | | | Limit accuracy | −1.7188 | −2.4308 | −1.7189 | 0 | 1.7189 | Actual value | −1.7215 | −2.4259 | −1.7215 | −0.0124 | 1.7092 | Roll (minute sec) | | | | | | Limit accuracy | 1.7188 | 0 | −1.7189 | −2.4308 | −1.7189 | Actual value | 1.7092 | 0.000003 | −1.7092 | −2.4259 | −1.7216 | Yaw (minute sec) | | | | | | Limit accuracy | −13.5124 | 0 | 13.5124 | 19.1065 | 13.5124 | Actual value | −12.3632 | −0.0157 | 12.3333 | 17.5139 | 12.4277 |
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