"JOURNAL OF RADIO ELECTRONICS"  N 11, 2014

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Speeding of clutter spatial filtering in a radar with adaptive phased array

 

R. P. Bystrov 1, A. V. Novikov 2, V. L. Rumiantsev 2

1 Kotel′nikov Institute of Radio-engineering and Electronics of RAS

2 JSC CDBAE

 

The paper is received on October 30, 2014

 

Abstract. The problem of clutter spatial filtering in a radar with an adaptive phased array was considered. The main quality criteria of spatial filter operation and direct computation methods for the optimal weight vector were determined. A variant was suggested for speeding the interference immunity system on the basis of an adaptive phased array at the expense of grid filtering algorithm improvement taking into account the persymmetric property of the sample correlation matrix of interference signals which allows to parallelize identical operations in forming the adaptation vector.

Key words: adaptive phased array, adaptive grid, spatial filtering, antenna pattern, correlation matrix, weight vector.