Abstract
A particle filter based robust navigation with fault diagnosis is designed for an underwater robot, where 10 failure modes of sensors and thrusters are considered. The nominal underwater robot and its anomaly are described by a switchingmode hidden Markov model. By extensively running a particle
filter on the model, the fault diagnosis and robust navigation are achieved. Closed-loop full-scale experimental results show that the proposed method is robust, can diagnose faults effectively, and can provide good state estimation even in cases where multiple faults occur. Comparing with other methods, the proposed
method can diagnose all faults within a single structure, it can diagnose simultaneous faults, and it is easily implemented.
filter on the model, the fault diagnosis and robust navigation are achieved. Closed-loop full-scale experimental results show that the proposed method is robust, can diagnose faults effectively, and can provide good state estimation even in cases where multiple faults occur. Comparing with other methods, the proposed
method can diagnose all faults within a single structure, it can diagnose simultaneous faults, and it is easily implemented.
| Original language | English |
|---|---|
| Journal | I E E E Transactions on Control Systems Technology |
| Volume | 22 |
| Issue number | 6 |
| Pages (from-to) | 2399 – 2407 |
| ISSN | 1063-6536 |
| DOIs | |
| Publication status | Published - 2014 |
Keywords
- Fault diagnosis
- Fault Tolerance
- Particle filter
- Switch-mode hidden Markov model
- ROV
- Underwater navigation