Abstract
The integrated strap-down inertial navigation system/celestial navigation system (SINS/CNS) is an important autonomous navigation method with effective concealment and high precision. Both accelerometer bias and star sensor installation error are important factors that affect the performance of this navigation system, which need to be calibrated and compensated. A new accelerometer bias and star sensor installation error joint calibration method for the SINS/CNS integrated navigation system is proposed. In this newly proposed method, the installation error of star sensor is augmented to the state vector, and the star vector, nadir angle, horizontal position error and velocity error are used as measurements to calibrate the two errors mentioned above. Simulations show that both accelerometer bias and star sensor installation error can be calibrated effectively.
| Original language | English |
|---|---|
| Article number | 2250006 |
| Journal | Guidance, Navigation and Control |
| Volume | 2 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Jun 2022 |
Keywords
- SINS/CNS integrated navigation
- accelerometer bias
- calibration method
- star sensor installation error
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