DOI: 10.3724/SP.J.1146.2013.00201

Journal of Electronics & Information Technology (电子与信息学报) 2013/35:12 PP.2836-2842

Research on the Subband Subspace Filtering for Narrow Band Interference Suppression in SAR

The low-frequency SAR is always easily interfered by other wireless services such as mobile communications, television, which operate in the same band. According to the narrow band of the Radio Frequency Interference (RFI) signals, this paper proposes a RFI suppression method based on subband space projection filtering. This method sorts and recognizes the interfered subband first and then suppresses the RFI with the space projection filtering. The proposed method can suppress the RFI effectively. Both the simulation and experimental results are provided to illustrate the effectiveness of the proposed approach.

Key words:SAR,Narrow Band Interference (NBI),Subband detection,Subspace filtering

ReleaseDate:2014-07-21 17:04:38