A self-tuning filter

Evaluation of a statistically based controller override on a pilot-scale flow loop

“…(8) as an appropriate balance of benefit to complexity. The authors find it fully functional in a variety of applications [11,12,[23][24][25][26][27][28]. However, others may prefer an alternate approach to estimating process noise variance on-line.…”

“…There are many approaches for estimatingσ x of various levels of complexity. Balancing simplicity with sufficiency, this work uses an exponentially-weighted moving average technique [23,24] also utilized in [25][26][27]. Definê…”