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PARTICLE FLOW FOR NONLINEAR FILTERS

Particle Filtering for High Dimensional Problems

Full Paper at IEEE Xplore

Přednášející: Fred Daum, Autoři: Fred Daum, Jim Huang, Raytheon, United States

We solve the well known problem of particle degeneracy using a new theory that computes Bayes' rule using particle flow rather than a pointwise multiplication of two functions. Our new filter does not resample particles, and it does not use any proposal density. The computational complexity is four orders of magnitude faster than standard particle filters, because we never resample particles. The filter accuracy is typically several orders of magnitude better than the extended Kalman filter (EKF) or UKF for difficult nonlinear problems. The particle flow is designed by solving a linear first order highly underdetermined PDE. We discuss a dozen distinct solutions for this PDE, including four completely new solutions.

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  Informace o přednášce

Nahráno: 2011-05-26 16:15 - 16:35, Club D
Přidáno: 18. 6. 2011 23:52
Počet zhlédnutí: 45
Rozlišení videa: 1024x576 px, 512x288 px
Délka videa: 0:21:50
Audio stopa: MP3 [7.39 MB], 0:21:50