Abstract
This paper is concerned with the optimal state estimation problem under linear dynamic systems when the sampling rates of different sensors are different. The noises of different sensors are cross-correlated and coupled with the system noise of the previous step. By use of the projection theory and induction hypothesis repeatedly, a sequential fusion estimation algorithm is derived. The algorithm is proven to be optimal in the sense of Linear Minimum Mean Square Error(LMMSE). Finally, a numerical example is presented to illustrate the effectiveness of the proposed algorithm.
Original language | English |
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Pages (from-to) | 19-29 |
Number of pages | 11 |
Journal | Advances in Intelligent Systems and Computing |
Volume | 214 |
DOIs | |
Publication status | Published - 2014 |
Event | 7th International Conference on Intelligent Systems and Knowledge Engineering, ISKE 2012 - Beijing, China Duration: 15 Dec 2012 → 17 Dec 2012 |
Keywords
- Asynchronous multirate multisensor
- Cross-correlated noises
- Data fusion
- State estimation