Performance analysis of the notch filter for RF Interference suppression in ultra-wideband SAR

Author

Chang, Wenge ; Cherniakov, Mikhail ; Li, Xiangyang ; Li, Jianyang

Author_Institution

Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha

fYear

2008

Firstpage

2446

Lastpage

2451

Abstract

Radio Frequency Interference (RFI) suppression is an important technique in the ultra-wideband synthetic aperture radar (UWB SAR). In this paper, we mainly analyze the performance of a notch filter for RFI suppression. The theoretical output from notch filter is presented based on the properties of narrowband RFI. The results indicate that the notch filter has little effect on the resolution, but it has significant effect on sidelobes, which can be considered to be false targets. This theoretical result is verified by simulation and experimental UWB SAR imaging.

Keywords

notch filters; radar imaging; signal denoising; synthetic aperture radar; ultra wideband radar; RF interference suppression; UWB SAR imaging; notch filter; radio frequency interference suppression; ultra-wideband SAR; Electromagnetic interference; Ground penetrating radar; Matched filters; Performance analysis; RF signals; Radar imaging; Radiofrequency interference; Synthetic aperture radar; Testing; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2008. ICSP 2008. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2178-7

Electronic_ISBN

978-1-4244-2179-4

Type

conf

DOI

10.1109/ICOSP.2008.4697644

Filename

4697644