Two-time-scale Hybrid Filters: Near Optimality

@article{Wang2006TwotimescaleHF,
  title={Two-time-scale Hybrid Filters: Near Optimality},
  author={J. W. Wang and Qing Zhang and Gang George Yin},
  journal={SIAM J. Control and Optimization},
  year={2006},
  volume={45},
  pages={298-319}
}