Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spacecraft Attitude Control with Nonconvex Constraints: An Explicit
  Reference Governor Approach   This paper introduces a novel attitude controller for spacecraft subject to
actuator saturation and multiple exclusion cone constraints. The proposed
solution relies on a two-layer approach where the first layer prestabilizes the
system dynamics whereas the second layer enforces constraint satisfaction by
suitably manipulating the reference of the prestabilized system. In particular,
constraint satisfaction is guaranteed by taking advantage of set invariance
properties, whereas asymptotic convergence is achieved by implementing a
non-conservative navigation field which is devoid of undesired stagnation
points. Multiple numerical examples illustrate the good behavior of the
proposed scheme.

31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat