Covariance matrix estimation errors and diagonal loading in adaptive arrays

作者: B.D. Carlson

DOI: 10.1109/7.7181

关键词:

摘要: Simulations were used to investigate the effect of covariance matrix sample size on system performance adaptive arrays using inversion (SMI) algorithm. Inadequate estimation results in adapted antenna patterns with high sidelobes and distorted mainbeams. A technique reduce these effects by modifying estimate is described from point view eigenvector decomposition. This diagonal loading reduces nulling capability against low-level interference, but parametric studies show that it an effective approach many situations. >

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