Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low-Complexity Constrained Constant Modulus SG-based Beamforming
  Algorithms with Variable Step Size   In this paper, two low-complexity adaptive step size algorithms are
investigated for blind adaptive beamforming. Both of them are used in a
stochastic gradient (SG) algorithm, which employs the constrained constant
modulus (CCM) criterion as the design approach. A brief analysis is given for
illustrating their properties. Simulations are performed to compare the
performances of the novel algorithms with other well-known methods. Results
indicate that the proposed algorithms achieve superior performance, better
convergence behavior and lower computational complexity in both stationary and
non-stationary environments.

16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc