Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comments on "IEEE 1588 Clock Synchronization using Dual Slave Clocks in
  a Slave"   In the above letter, Chin and Chen proposed an IEEE 1588 clock
synchronization method based on dual slave clocks, where they claim that
multiple unknown parameters --- i.e., clock offset, clock skew, and
master-to-slave delay --- can be estimated with only one-way time transfers
using more equations than usual. This comment investigates Chin and Chen's dual
clock scheme with detailed models for a master and dual slave clocks and shows
that the formulation of multi-parameter estimation is invalid, which affirms
that it is impossible to distinguish the effect of delay from that of clock
offset at a slave even with dual slave clocks.

37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio