Sentence examples for derivative error from inspiring English sources
The proportional and derivative error gain factors for glucagon were negative, such that negative proportional and derivative errors called for an increase in the glucagon rate.
For glucagon, the average weighted proportional error was calculated over a 15 min interval and the average weighted derivative error was calculated over a 10 min interval.
The overall insulin delivery rate was determined by adding the rates called for by the proportional error (IIRpe), the derivative error (IIRde), and the basal insulin rate.
The derivative error gain factor was 2.0 × 10−3 ± 0.096 × 10−3 units/kg per mg/dl for glucagon studies and was 2.0 × 10−3 units/kg per mg/dl for placebo studies.
The FMPD algorithm determined the hormone delivery rates based on proportional error, defined as the difference between the current glucose level and the target level, and the derivative error, defined as the rate of change of the glucose.
In these low-gain glucagon studies, the mean proportional error gain factor was −0.23 ± 0.04 ml/kg per mg/dl/h, the mean derivative error gain factor was −0.06 ± 0.009 ml/kg per mg/dl, and target glucose for glucagon infusion was 108 ± 3 mg/dl.
Positive proportional errors (glucose level above target) and positive derivative errors (rising glucose level) called for an increase in the insulin delivery rate.
In the FMPD algorithm, the gain factors determined the degree to which proportional or derivative errors led to changes in hormone delivery rates.
In the second proposed approach, the robust exact differentiation via second-order sliding mode theory, known as Levant differentiator, is employed to decrease derivative estimation error in the process of estimation.
For smooth boundary-value problems containing first and second derivatives the error estimates converge to the exact error as the mesh is refined.
This model based scheme relies on non-causal filtering and need no high order derivatives of error signals and no numerical differentiation.
