Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SPSA-Based Successive Beamforming for Mobile Satellite Receivers with
  Phased Arrays   Efficient and low-complexity beamforming design is an important element of
satellite communication systems with mobile receivers equipped with phased
arrays. In this work, we apply the simultaneous perturbation stochastic
approximation (SPSA) method with successive sub-array selection for finding the
optimal antenna weights that maximize the received signal power at a uniform
plane array (UPA). The proposed algorithms are based on iterative gradient
approximation by injecting some carefully designed perturbations on the
parameters to be estimated. Additionally, the successive sub-array selection
technique enhances the performance of SPSA-based algorithms and makes them less
sensitive to the initial beam direction. Simulation results show that our
proposed algorithms can achieve efficient and reliable performance even when
the initial beam direction is not well aligned with the satellite direction.

2
The categories of this paper are: math
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph