Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Limitations of state estimation: absolute lower bound of minimum
  variance estimation/filtering, Gaussianity-whiteness measure (joint
  Shannon-Wiener entropy), and Gaussianing-whitening filter (maximum
  Gaussianity-whiteness measure principle)   This paper aims at obtaining performance limitations of state estimation in
terms of variance minimization (minimum variance estimation and filtering)
using information theory. Two new notions, negentropy rate and
Gaussianity-whiteness measure (joint Shannon-Wiener entropy), are proposed to
facilitate the analysis. Topics such as Gaussianing-whitening filter (the
maximum Gaussianity-whiteness measure principle) are also discussed.

3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an