constraint_shape_expansion


Purpose

Back-expand functions from a given set of constraint shapes

Syntax

eta = constraint_shape_expansion(shp,f,dof,constraint_dof)

Description

CONSTRAINT_SHAPE_EXPANSION calculates functions from a given set of constraint shapes. It works with Time Response and Frequency Response Functions.

SHP is an imat_shp containing the constraint shapes.

F is an imat_fn containing the functions to use as input to the constraint function expansion.

DOF is an imat_ctrace containing the degrees of freedom used in SHP to estimate the constraint shapes. DOF must contain only positive coordinates.

CONSTRAINT_DOF is an imat_ctrace containing the DOF used to define the constraint shapes.

ETA is an imat_fn containing the back-expanded functions. It is calculated using the basic equation below:

ETA = pinv(shp{dof}) * F{dof}


See Also

backexp