Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polyphase alternating codes   This work introduces a method for constructing polyphase alternating codes in
which the length of a code transmission cycle can be $p^m$ or $p-1$, where $p$
is a prime number and $m$ is a positive integer. The relevant properties
leading to the construction alternating codes and the algorithm for generating
alternating codes is described. Examples of all practical and some not that
practical polyphase code lengths are given.

8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math