OPTIMIZATION OF ENERGY CHARACTERISTICS OF ANTENNA ARRAY TAKING INTO
ACCOUNT FLUCTUATIONS OF AMPLITUDE-PHASE DISTRIBUTION AND FAILURES
OF SOME ELEMENTS
S. E. Mishchenko, N. V. Shatskiy
Research institute of Physics,
Southern
Federal University
The paper is received
on December 20, 2013
Abstract. The problem of maximizing the signal / noise ratio of
the antenna array elements with failures and fluctuations in the amplitude and
phase distribution is considered. An expression for the average of the antenna
array with fluctuations amplitude-phase distribution is obtained. It is shown
that the problem of energy optimization using the resulting expression can not
be solved using methods of matrix synthesis . We propose to use a gradient
optimization method . During numerical studies it was found that the use of the
proposed approach allows to stabilize the depth of the formed "zero" radiation
pattern in the direction to the source of interference.
Key words: antenna array, energy optimization, amplitude and
phase distribution, element failure, fluctuations.