Abstract:
This report describes five Fortran programs formulated to be used in the
Estimation-Before-Modelling (E-B-M) methodology for aircraft parameter
estimation.
The E-B-M technique is a two step estimation process. In the first step, as
formulated in this report, the aircraft states are estimated by using Extended
Kalman Filter techniques. In the second step the unknowns aerodynamic
derivatives are estimated by linear regression formulated as the Stepwise
Regression.
The five program comprise two different techniques for state estimation, two
algorithms for linear regression and a fixed-lag smoother-differentiator.
