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[[[[!img TridentSpin/trident-2-dnsc8906614.jpg size="250x192" alt="Uncertainty Team Logo" link=no class="picture"]]|TridentSpin]]

Mailing List: [psas-avionics](http://lists.psas.pdx.edu/mailman/listinfo/psas-avionics)

The uncertainty team is tasked with achieving things that are unpredictable and very challenging. Of course, things which are certain and easily understood will be handled by other [[Teams]].

We're doing research and implementation of probabilistic algorithms. In particular we are interested in all sorts of filtering: kalman unscented, kalman extended, sigma point kalman, particle and others. These are useful in estimating the position and orientation of a rocket given a diverse array of sensor inputs, all of which are incorrect in their own way. Without such estimation and eventually feeding back this information to our system, controlling a rocket's trajectory can be hugely difficult.

Please join our mailing list, or better yet stop by one of our meetings, we'd love to have your help!

# Current projects

- Testing and improving our Bayesian Particle Filtering (BPF) implementation in our [simulated rocket](http://git.psas.pdx.edu/?p=event-driven-fc.git) environment.
- [[Flight simulations|simulation]]

# Local Resources

- [[Introduction to the Kalman fiter|KalmanIntro]]
- [[Introduction to state space representations|StateSpace]]
- [[Example:INS Aiding and Error Analysis in 1-D|Example1D]]
- [[ActiveGuidance]] system links and notes.
- [[Comparison|orbital_vehicle_comparison]] of small orbital vehicles
- [[Roll Control|RollControl]]

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