Gravity Aided Navigation Precise Algorithm with Gauss Spline Interpolation
The gravity compensation of error equation thoroughly should be solved before the study on gravity aided navigation with high precision. A gravity aided navigation model construction algorithm based on research the algorithm to approximate local grid gravity anomaly filed with the 2D Gauss spline in...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Surveying and Mapping Press
2015-01-01
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| Series: | Acta Geodaetica et Cartographica Sinica |
| Subjects: | |
| Online Access: | http://xb.sinomaps.com:8081/Jwk_chxb/CN/Y2015/V44/I1/13 |
| Summary: | The gravity compensation of error equation thoroughly should be solved before the study on gravity aided navigation with high precision. A gravity aided navigation model construction algorithm based on research the algorithm to approximate local grid gravity anomaly filed with the 2D Gauss spline interpolation is proposed. Gravity disturbance vector, standard gravity value error and Eotvos effect are all compensated in this precision model. The experiment result shows that positioning accuracy is raised by 1 times, the attitude and velocity accuracy is raised by 1～2 times and the positional error is maintained from 100~200 m. |
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| ISSN: | 1001-1595 1001-1595 |