Title :
Centralized and distributed Kalman filtering in multi-coordinate systems with uncertainties
Author_Institution :
Dept. of Electr. Eng., Wright-State Univ., Dayton, OH, USA
Abstract :
Algorithms for dynamic centralized and distributed algorithms are developed for multicoordinate systems in which where the communication networks are assumed to have uncertainties. In centralized Kalman filtering, the local measurements and the local sensor characteristics are transferred through the communication network to the central processor to generate optimal central estimate. In contrast, the local measurements, together with the previous central estimate transmitted from the communication network, are locally processed in distributed Kalman filtering. The statistics of local optimal estimates are sent to the central processor to yield the optimal global estimate. The effects of communication network uncertainties are minimized in both the local and central estimation
Keywords :
Kalman filters; computerised signal processing; distributed processing; filtering and prediction theory; optimisation; tracking systems; communication networks; distributed Kalman filtering; distributed sensor networks; dynamic centralised algorithms; local estimation; local sensor characteristics; multicoordinate systems; multiple coordinate; optimal central estimate; optimal global estimate; statistics; target tracking; Character generation; Communication networks; Coordinate measuring machines; Covariance matrix; Filtering; Kalman filters; Motion measurement; Target tracking; Uncertainty; Yield estimation;
Conference_Titel :
Aerospace and Electronics Conference, 1990. NAECON 1990., Proceedings of the IEEE 1990 National
Conference_Location :
Dayton, OH
DOI :
10.1109/NAECON.1990.112802