REJECTION OF OUT-OF-BAND INTERFERENCE
A.G. Vostretsov, V.A. Bogdanovich, M.V. Gundareva
Keywords: discrete Fourier transform, effect of spectrum spreading, out-of-band interference, interference rejection, the maximum invariant
Abstract
Algorithm for rejection of out-of-band interference is proposed. The algorithm is based on formation of invariant statistics. These statistics are invariant to a group of additive transformations characterizing a priori uncertainty of the interference’s frequency. The rejection is implemented by subtracting a projection of an observed spectrum into an interference subspace. The performance of the algorithm is summarized.
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