The Effect of Notch Filter on RFI Suppression
Wenge CHANG, Jianyang LI, Xiangyang LI
DOI: 10.4236/wsn.2009.13026   PDF    HTML     6,389 Downloads   11,696 Views   Citations


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 sup-pression. The theoretical output from notch filter is presented based on RFI signal’s narrowband property. The research conclusion shows that the notch filter has significant effect on sidelobes of the system response, which might be considered to be false targets, however it has little effect on the resolution of the system re-sponse. The theoretical result is verified by simulation and experimental data processing both in one dimen-sion (range dimension) and in two dimensions (range and azimuth dimension).

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W. CHANG, J. LI and X. LI, "The Effect of Notch Filter on RFI Suppression," Wireless Sensor Network, Vol. 1 No. 3, 2009, pp. 196-205. doi: 10.4236/wsn.2009.13026.

Conflicts of Interest

The authors declare no conflicts of interest.


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