Abstract
The characteristic of Kalman gain in a cubature Kalman filter for filtering 1-D chaotic signals is investigated. It is shown theoretically that the Kalman gain converges to zero for the case of periodic nonlinear systems, and it either approaches the Cramér-Rao lower bound or oscillates aperiodically for the case of chaotic nonlinear systems. Results from analysis of the Kalman gain are verified by simulations of some representative nonlinear systems.
| Original language | English |
|---|---|
| Article number | 6415995 |
| Pages (from-to) | 229-232 |
| Number of pages | 4 |
| Journal | IEEE Signal Processing Letters |
| Volume | 20 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 11 Feb 2013 |
Keywords
- Cramér-Rao lower bound
- cubature Kalman filter
- Kalman gain
- Lyapunov exponent
ASJC Scopus subject areas
- Signal Processing
- Applied Mathematics
- Electrical and Electronic Engineering