Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear State Estimation for Inertial Navigation Systems With
  Intermittent Measurements   This paper considers the problem of simultaneous estimation of the attitude,
position and linear velocity for vehicles navigating in a three-dimensional
space. We propose two types of hybrid nonlinear observers using continuous
angular velocity and linear acceleration measurements as well as intermittent
landmark position measurements. The first type relies on a fixed-gain design
approach based on an infinite-dimensional optimization, while the second one
relies on a variable-gain design approach based on a continuous-discrete
Riccati equation. For each case, we provide two different observers with and
without the estimation of the gravity vector. The proposed observers are shown
to be exponentially stable with a large domain of attraction. Simulation and
experimental results are presented to illustrate the performance of the
proposed observers.

18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th