LFRT version 2.0 for Matlab: functions

INDEX TUTORIAL


lfr-object generation
lfr core function of the toolbox
lfrs realize elementary real or complex lfr-objects.
rlfr generates random lfrs
bnds2lfrfrom min/max bounds to lfr-object
sym2lfr from symbolic to lfr-object
symtreedelementary structured tree decomposition
data2lfrinterpolation on an lfr basis
aeblkchkcheck well-definedness of lfr-object.

Conversions
lfr convert various objects to lfr-objects
abcd2lfr from state-space to input-output form
lfr2abcd converse
lf2lfr realize lfr-object from left fractional factorization.
rf2lfr realize lfr-object from right fractional factorization.
lfr2rob transforms to standard Matlab uncertain objects

lfr realization
sym2lfr symbolic expression converted to lfr-object
symtreedelementary structured tree decomposition
lfrdata retrieves realization matrices from an lfr-object
gmorton generalized Morton realization
diff differenciation

Order reduction
minlfr reduction based on n-D Kalman decomposition
minlfr1 sequencial 1-D odrer reduction
reduclfrapproximation based on the above tools
symtreedelementary structured tree decomposition

Gridding and interpolation
data2lfr interpolation on an lfr basis
plotlfr plots entries of an lfr-object on a gridding

Operations on the matrix Delta
eval evaluates an lfr from values in the workspace
uplft closes (partially) the delta-loop
normalizelfrnormalizes parametric blocks in lfr-object
unnormalizeconverse
actualvalcomputes actual parameter values from normalized ones
starplfr star product
get get fields of an lfr-object.
set change block-names, block-bounds or object-fields.

Dynamic systems
feedbackcloses the feedback loop
dcgain dc-gain
eig nominal poles

Mu analysis
lfr2mustab from lfr-object to input arguments of mustab
lfr2mubnd from lfr-object to input arguments of mubnd
lfr2mu from lfr-object to input arguments of mu
lfr2mussv from lfr-object to input arguments of mussv
ns_rad non-singularity radius
wp_rad well-posedness radius
min_max min and max values of a 1-by-1 real lfr-object

Distances
distlfr calculates a lower bound of the distance between two lfrs
udistlfrupper bound of the distance (some restrictions apply)

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