Data-driven iterative tuning based active disturbance rejection control for FOPTD model.

Active Disturbance Rejection Control (ADRC) emerges as a promising control method that can effectively handle uncertainties and disturbances. However, many model-based ADRC tuning methods turn laborious to achieve satisfactory control performance, when the critical process parameters are difficult to accurately obtain, especially the time delay information. To this end, this paper aims to propose a data-driven iterative tuning method for time-delayed ADRC (TD-ADRC).

[Check ligament suspension for correction of congenital severe blepharoptosis].

Objective: To evaluate the clinical result of check ligament suspension for correction of congenital severe blepharoptosis.

Methods: Since Jan. 2010 to Nov.