IEEE Access,
Journal Year:
2019,
Volume and Issue:
7, P. 116809 - 116822
Published: Jan. 1, 2019
Isotropy,
end
effect
suppression,
calculation
efficiency
and
robustness
are
basic
requirements
of
areal
filters
for
surface
metrology.
However,
current
cause
problems
in
different
aspects,
which
cripples
the
operation
metrology
like
roughness
evaluation.
In
this
paper,
a
high-order
thin-plate
spline
(TPS)
filter
is
proposed
to
construct
real
isotropic
with
minimum
effects
high
efficiency,
aiming
provide
more
universal
efficient
topography
filtration
method.
The
new
structured
by
approximating
Gaussian
ensure
uniform
transmission
characteristics.
robust
algorithm
derived
process
data
outliers
defects.
A
fast
implementation
also
provided
paper.
Performances
various
illustrated
processing
both
simulated
practical
surfaces,
through
TPS
herein
manifests
isotropy,
higher
slighter
as
well
comparing
filters.
Comparing
ISO
16610-61,
can
obtain
ideal
results,
therefore
it
take
place
16610-61
on
most
occasions.
Advanced Control for Applications,
Journal Year:
2020,
Volume and Issue:
2(4)
Published: Oct. 5, 2020
Abstract
This
paper
proposes
a
new
chattering‐free
Fixed‐time
Observer‐Based
Sliding
Mode
Control
(FOBSMC)
scheme
for
synchronization
of
two
bilateral
teleoperations
under
unknown
time‐varying
delay.
The
system
is
subjected
to
disturbances
which
are
estimated
in
fixed
time
by
utilizing
the
Disturbance
Observer‐based
SMC
scheme.
fixed‐time
State
designed
estimate
unmeasured
velocity
state,
while
position
state
assumed
be
available.
stability
method
used
provide
convergence
independently
initial
states.
A
FOBSMC
first
master
teleoperation
delay
track
environmental
torque
human
operating
presence
communication
channel,
as
well
estimating
and
synchronize
slave
analysis
performed
closed‐loop
combined
controller‐observer
using
Lyapunov
theory.
efficacy
proposed
fulfill
good
transparency
delays
tested
performing
numerical
simulation
Simulink/MATLAB.
IEEE Access,
Journal Year:
2018,
Volume and Issue:
6, P. 43336 - 43342
Published: Jan. 1, 2018
This
paper
studies
a
boundary
control
problem
of
1-D
flexible
beam.
The
objective
is
to
design
an
efficient
controller
suppress
the
undesired
vibration
beam
with
restricted
input.
A
novel
developed
and
stabilize
system.
effect
input
can
be
mitigated
by
employing
smooth
hyperbolic
tangent
function
proposed
in
this
not
only
avoid
spillover
phenomenon,
but
also
guarantee
asymptotic
stability
closed-loop
numerical
results
are
finally
illustrated
validate
effectiveness
our
methodology.
IEEE Access,
Journal Year:
2019,
Volume and Issue:
7, P. 116809 - 116822
Published: Jan. 1, 2019
Isotropy,
end
effect
suppression,
calculation
efficiency
and
robustness
are
basic
requirements
of
areal
filters
for
surface
metrology.
However,
current
cause
problems
in
different
aspects,
which
cripples
the
operation
metrology
like
roughness
evaluation.
In
this
paper,
a
high-order
thin-plate
spline
(TPS)
filter
is
proposed
to
construct
real
isotropic
with
minimum
effects
high
efficiency,
aiming
provide
more
universal
efficient
topography
filtration
method.
The
new
structured
by
approximating
Gaussian
ensure
uniform
transmission
characteristics.
robust
algorithm
derived
process
data
outliers
defects.
A
fast
implementation
also
provided
paper.
Performances
various
illustrated
processing
both
simulated
practical
surfaces,
through
TPS
herein
manifests
isotropy,
higher
slighter
as
well
comparing
filters.
Comparing
ISO
16610-61,
can
obtain
ideal
results,
therefore
it
take
place
16610-61
on
most
occasions.
