A Modified Anti-Jamming Approach for Meter Band Radars

Author

Dihua, Xu ; Jianwen, Chen ; Ya, Huang

Author_Institution

Key Res. Lab, Wuhan Radar Acad.

fYear

2006

fDate

9-14 July 2006

Firstpage

1429

Lastpage

1432

Abstract

A modified anti-jamming approach is presented for meter band uniform circular arrays (UCA) radar in the dense interference environment, which is based on least squares (LS) null constraints and the Gram-Schmidt orthogonalization (GSO) method for interference suppression, i.e., the LS-GSO approach for short. First, the LS null constraints with fast Fourier transform (FFT) approach is presented for radio frequency interference (RFI) suppression, especially the frequency modulation (FM) signals. Then, the GSO method is employed to eliminate the active interference. The simulation results indicate that the scheme is computationally efficient and robust in terms of interference suppression. A deep null can be formed to the direction of interference

Keywords

fast Fourier transforms; interference suppression; jamming; least squares approximations; radar interference; FFT; Gram-Schmidt orthogonalization method; anti-jamming approach; dense interference; fast Fourier transform; frequency modulation signals; interference suppression; least squares null constraints; meter band uniform circular arrays radar; radio frequency interference suppression; Computational modeling; Fast Fourier transforms; Frequency modulation; Interference constraints; Interference elimination; Interference suppression; Least squares methods; RF signals; Radar; Radiofrequency interference; Beamforming; Meter band radars; Null constraints;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1710818

Filename

1710818