Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classical and modern power spectrum estimation for tune measurement in
  CSNS RCS   Precise measurement of betatron tune is required for good operating condition
of CSNS RCS. The fractional part of betatron tune is important and it can be
measured by analyzing the signals of beam position from the appointed BPM.
Usually these signals are contaminated during the acquisition process,
therefore several power spectrum methods are used to improve the frequency
resolution. In this article classical and modern power spectrum methods are
used. In order to compare their performance, the results of simulation data and
IQT data from J-PARC RCS are discussed. It is shown that modern power spectrum
estimation has better performance than the classical ones, though the
calculation is more complex.

16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int