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.