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Attitude Determination and Control

Attitude Determination and Control. Karla Vega University of California, Berkeley. Outline. Requirements Hardware Attitude Determination Dynamics Attitude Control Types Disturbances Integration and Test Summary ACS in CubeSats CINEMA

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Attitude Determination and Control

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  1. Attitude Determination and Control Karla Vega University of California, Berkeley

  2. Outline • Requirements • Hardware • Attitude Determination • Dynamics • Attitude Control • Types • Disturbances • Integration and Test • Summary • ACS in CubeSats • CINEMA *Lecture notes from Dr. Glenn Lightsey’s Spacecraft Dynamics and Controls Graduate Course at University of Texas at Austin TRIO-CINEMA Meeting

  3. Getting Underway TRIO-CINEMA Meeting

  4. Requirements and Flowdowns TRIO-CINEMA Meeting

  5. Tree Diagram TRIO-CINEMA Meeting

  6. Impact of ACS on S/C Configuration TRIO-CINEMA Meeting

  7. Some Standard Configurations TRIO-CINEMA Meeting

  8. Hardware TRIO-CINEMA Meeting

  9. Star Sensors TRIO-CINEMA Meeting

  10. Earth Sensors TRIO-CINEMA Meeting

  11. Earth Sensors Cont. TRIO-CINEMA Meeting

  12. Sun Sensors TRIO-CINEMA Meeting

  13. Magnetometers TRIO-CINEMA Meeting

  14. GPS TRIO-CINEMA Meeting

  15. Typical External Sensor Performance TRIO-CINEMA Meeting

  16. Gyros TRIO-CINEMA Meeting

  17. TRIO-CINEMA Meeting

  18. TRIO-CINEMA Meeting

  19. Typical Gyro Performance TRIO-CINEMA Meeting

  20. Typical Inertial Sensor Performance TRIO-CINEMA Meeting

  21. Sensor Selection TRIO-CINEMA Meeting

  22. Sensor Selection Continued TRIO-CINEMA Meeting

  23. Actuators • Torque Coils • Wheels • Reaction Wheels • Momentum Wheels • Controlled Moment Gyros • Thrusters TRIO-CINEMA Meeting

  24. Wheels TRIO-CINEMA Meeting

  25. Wheels Continued TRIO-CINEMA Meeting

  26. Thrusters TRIO-CINEMA Meeting

  27. Thrusters Continued TRIO-CINEMA Meeting

  28. Attitude Determination and Control TRIO-CINEMA Meeting

  29. Attitude Determination • Frames of Reference • Parameterization • Geometry • Estimation • Statistics • Observability TRIO-CINEMA Meeting

  30. Attitude Parameterization TRIO-CINEMA Meeting

  31. Propagating Attitudes TRIO-CINEMA Meeting

  32. Propagating Euler Angles TRIO-CINEMA Meeting

  33. Propagating Quaternions TRIO-CINEMA Meeting

  34. Geometry of Attitude Determination TRIO-CINEMA Meeting

  35. Implementation TRIO-CINEMA Meeting

  36. Implementation Continued TRIO-CINEMA Meeting

  37. Implementation Continued TRIO-CINEMA Meeting

  38. Estimation Theory: combining several measurement TRIO-CINEMA Meeting

  39. Dynamics: Euler’s Equations TRIO-CINEMA Meeting

  40. Integration TRIO-CINEMA Meeting

  41. Attitude Control TRIO-CINEMA Meeting

  42. Disturbances TRIO-CINEMA Meeting

  43. Some Typical Disturbance Torque Magnitudes TRIO-CINEMA Meeting

  44. Gravity Gradient TRIO-CINEMA Meeting

  45. Gravity Gradient, circular orbit TRIO-CINEMA Meeting

  46. Stability Diagram for GG in circular Orbit TRIO-CINEMA Meeting

  47. Effects of Elliptical Orbits TRIO-CINEMA Meeting

  48. Design of GG Satellites TRIO-CINEMA Meeting

  49. Magnetic Attitude Control TRIO-CINEMA Meeting

  50. Magnetic Controls, Continued TRIO-CINEMA Meeting

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