Attitude Determination and Control Karla Vega University of
- Slides: 59
Attitude Determination and Control Karla Vega University of California, Berkeley 11/30/2020
Outline Requirements Hardware Attitude Determination Dynamics Attitude Control Types Disturbances Integration and Test Summary ACS in Cube. Sats CINEMA *Lecture notes from Dr. Glenn Lightsey’s Spacecraft Dynamics and Controls Graduate Course at University of Texas at TRIO-CINEMA Meeting 11/30/2020 Austin
Getting Underway TRIO-CINEMA Meeting 11/30/2020
Requirements and Flowdowns TRIO-CINEMA Meeting 11/30/2020
Tree Diagram TRIO-CINEMA Meeting 11/30/2020
Impact of ACS on S/C Configuration TRIO-CINEMA Meeting 11/30/2020
Some Standard Configurations TRIO-CINEMA Meeting 11/30/2020
Hardware TRIO-CINEMA Meeting 11/30/2020
Star Sensors TRIO-CINEMA Meeting 11/30/2020
Earth Sensors TRIO-CINEMA Meeting 11/30/2020
Earth Sensors Cont. TRIO-CINEMA Meeting 11/30/2020
Sun Sensors TRIO-CINEMA Meeting 11/30/2020
Magnetometers TRIO-CINEMA Meeting 11/30/2020
GPS TRIO-CINEMA Meeting 11/30/2020
Typical External Sensor Performance TRIO-CINEMA Meeting 11/30/2020
Gyros TRIO-CINEMA Meeting 11/30/2020
TRIO-CINEMA Meeting 11/30/2020
TRIO-CINEMA Meeting 11/30/2020
Typical Gyro Performance TRIO-CINEMA Meeting 11/30/2020
Typical Inertial Sensor Performance TRIO-CINEMA Meeting 11/30/2020
Sensor Selection TRIO-CINEMA Meeting 11/30/2020
Sensor Selection Continued TRIO-CINEMA Meeting 11/30/2020
Actuators Torque Coils Wheels Reaction Wheels Momentum Wheels Controlled Moment Gyros Thrusters TRIO-CINEMA Meeting 11/30/2020
Wheels TRIO-CINEMA Meeting 11/30/2020
Wheels Continued TRIO-CINEMA Meeting 11/30/2020
Thrusters TRIO-CINEMA Meeting 11/30/2020
Thrusters Continued TRIO-CINEMA Meeting 11/30/2020
Attitude Determination and Control TRIO-CINEMA Meeting 11/30/2020
Attitude Determination Frames of Reference Parameterization Geometry Estimation Statistics Observability TRIO-CINEMA Meeting 11/30/2020
Attitude Parameterization TRIO-CINEMA Meeting 11/30/2020
Propagating Attitudes TRIO-CINEMA Meeting 11/30/2020
Propagating Euler Angles TRIO-CINEMA Meeting 11/30/2020
Propagating Quaternions TRIO-CINEMA Meeting 11/30/2020
Geometry of Attitude Determination TRIO-CINEMA Meeting 11/30/2020
Implementation TRIO-CINEMA Meeting 11/30/2020
Implementation Continued TRIO-CINEMA Meeting 11/30/2020
Implementation Continued TRIO-CINEMA Meeting 11/30/2020
Estimation Theory: combining several measurement TRIO-CINEMA Meeting 11/30/2020
Dynamics: Euler’s Equations TRIO-CINEMA Meeting 11/30/2020
Integration TRIO-CINEMA Meeting 11/30/2020
Attitude Control TRIO-CINEMA Meeting 11/30/2020
Disturbances TRIO-CINEMA Meeting 11/30/2020
Some Typical Disturbance Torque Magnitudes TRIO-CINEMA Meeting 11/30/2020
Gravity Gradient TRIO-CINEMA Meeting 11/30/2020
Gravity Gradient, circular orbit TRIO-CINEMA Meeting 11/30/2020
Stability Diagram for GG in circular Orbit TRIO-CINEMA Meeting 11/30/2020
Effects of Elliptical Orbits TRIO-CINEMA Meeting 11/30/2020
Design of GG Satellites TRIO-CINEMA Meeting 11/30/2020
Magnetic Attitude Control TRIO-CINEMA Meeting 11/30/2020
Magnetic Controls, Continued TRIO-CINEMA Meeting 11/30/2020
Using Magnets TRIO-CINEMA Meeting 11/30/2020
Comments of Field Models TRIO-CINEMA Meeting 11/30/2020
Momentum Bias TRIO-CINEMA Meeting 11/30/2020
Integration and Test TRIO-CINEMA Meeting 11/30/2020
I&T Continued TRIO-CINEMA Meeting 11/30/2020
Summary TRIO-CINEMA Meeting 11/30/2020
ACS in Cube. Sats Passive Control Magnets aligned with magnetic field Active Control Torque Coils Solar panels as sun sensors Reaction Wheels ($$) Digital sun sensors ($$) TRIO-CINEMA Meeting 11/30/2020
ACS: CINEMA (more on Wednesday) Spin-stabilized satellite Desired Attitude: Ecliptic normal System pointing requirement Science: ± 10° Determination: ± 1° Control: ± 1° Hardware V-slit sun sensor Solar panels (3 current sensors) TBR Magnetometer Torque Coil TRIO-CINEMA Meeting 11/30/2020
Some Useful References TRIO-CINEMA Meeting 11/30/2020