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Journal of Sensors
/
2021
/
Article
/
Alg 2
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Research Article
Improved Particle Filter Using Clustering Similarity of the State Trajectory with Application to Nonlinear Estimation: Theory, Modeling, and Applications
Algorithm 2
Clustering similarity particle filter.
Step 1
. Particle initialization
At time
,
for
Sample
At time
,
for
Step 2
. Importance sampling
Predict
,
sample
Step 3
. Similarity measurement
Particle state trajectories
Draw
Calculate
Exponential transformation
Step 4
. Recursive importance weights
Revised proposal distribution
Update weights
Normalize
Step 5
. State estimation