Title :
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
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;
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
DOI :
10.1109/ICOSP.2008.4697644
