Abstract
The characteristics of gravity disturbing vector errors and their influences on navigation algorithm are studied for suppressing the navigation errors. Based on the error model of the inertial navigation systems (INS), the position error excited by horizontal component of gravity disturbing vector is studied, and according to which, the position RMS is derived. The global average variance of vertical deflection is used to quantify the vertical-deflection-induced position RMS under different velocities of vehicle set. Then the indexes of vertical deflection influencing on INS are proposed. Experiments with digital signal processor show that the requirements of computing resources of the navigation system can only be satisfied when with <12-order spherical harmonic gravity model EGM2008, and the compensation precision of the model is 5.86''. This gravity model can be applied to such INS as the position error is <0.8 nm/h.
| Original language | English |
|---|---|
| Pages (from-to) | 285-290 |
| Number of pages | 6 |
| Journal | Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Jun 2016 |
Keywords
- EGM2008
- Gravity disturbing vector
- Inertial navigation system
- Position RMS
Fingerprint
Dive into the research topics of 'Error indicator analysis for gravity disturbing vector's influence on inertial navigation system'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver