Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8019544 | Real-time refinement method of spacecraft star tracker alignment estimates | David D. Needelman, Rongsheng Li | 2011-09-13 |
| 8000896 | Scale factor calibration and compensation for angular position resolver | Ketao Liu, Jeffrey L. Lee | 2011-08-16 |
| 7877173 | Method and apparatus for determining a satellite attitude using crosslink reference signals | Ketao Liu | 2011-01-25 |