Advancements in Spacecraft Rendezvous: Leveraging Koopman Theory Over Clohessy-Wiltshire Equations
AIAA SCITECH 2022 Forum,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Language: Английский
Horizontal Plane Trajectory Tracking of Underwater Vehicle Based on Exponential Backstepping and Continuous Sliding Mode Control
Dan Wang,
No information about this author
Haolin Li,
No information about this author
Xiaozheng Jin
No information about this author
et al.
Lecture notes in networks and systems,
Journal Year:
2025,
Volume and Issue:
unknown, P. 3 - 13
Published: Jan. 1, 2025
Language: Английский
Optimal DMD Koopman Data-Driven Control of a Worm Robot
Biomimetics,
Journal Year:
2024,
Volume and Issue:
9(11), P. 666 - 666
Published: Nov. 1, 2024
Bio-inspired
robots
are
devices
that
mimic
an
animal's
motions
and
structures
in
nature.
Worm
inspired
by
the
movements
of
worm
This
robot
has
different
applications
such
as
medicine
rescue
plans.
However,
control
is
a
challenging
task
due
to
high-nonlinearity
dynamic
model
external
noises
applied
robot.
research
uses
optimal
data-driven
controller
First,
data
obtained
from
nonlinear
Then,
Koopman
theory
used
generate
linear
The
mode
decomposition
(DMD)
method
operator.
Finally,
quadratic
regulator
(LQR)
for
simulation
results
verify
performance
proposed
method.
Language: Английский
Deep neural data-driven Koopman fractional control of a worm robot
Expert Systems with Applications,
Journal Year:
2024,
Volume and Issue:
256, P. 124916 - 124916
Published: July 29, 2024
Language: Английский
Optimized Trajectory Tracking for ROVs Using DNN + ENMPC Strategy
Guanghao Yang,
No information about this author
Weidong Liu,
No information about this author
Le Li
No information about this author
et al.
Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(10), P. 1827 - 1827
Published: Oct. 13, 2024
This
study
introduces
an
innovative
double
closed-loop
3D
trajectory
tracking
approach,
integrating
deep
neural
networks
(DNN)
with
event-triggered
nonlinear
model
predictive
control
(ENMPC),
specifically
designed
for
remotely
operated
vehicles
(ROVs)
under
external
disturbance
conditions.
In
contrast
to
single-loop
control,
the
proposed
system
operates
in
two
distinct
phases:
(1)
The
outer
loop
controller
uses
a
DNN
replace
LMPC
controller,
overcoming
uncertainties
kinematic
while
reducing
computational
burden.
(2)
inner
velocity
is
using
(NMPC)
algorithm
its
stability
proven.
A
+
ENMPC
method
proposed,
threshold-triggered
mechanism
into
inner-loop
NMPC
reduce
iterations
sacrificing
only
small
amount
of
performance.
Finally,
simulation
results
indicate
that
compared
algorithm,
can
better
track
desired
trajectory,
thruster
oscillations,
and
further
minimize
load.
Language: Английский