VHF/UHF UWB SAR基于通道均衡的RFI抑制方法

A RFI Suppression Algorithm Based on Channel Equalization for the VHF/UHF UWB SAR

对工作于甚高频/超高频(VHF/UHF)波段的超宽带合成孔径雷达(UWB SAR),射频干扰(RFI)会严重恶化图像质量。该文提出了一种基于通道均衡的RFI抑制方法,它能有效地抑制雷达接收信号中的RFI分量,同时保持图像质量。实际的处理结果证实了该算法的有效性。

For Very High Frequency/Ultra High Frequency（VHF/UHF） Ultra-WideBand Synthetic Aperture Radar （UWB SAR） the Radio Frequency Interference（RFI） may degrade the SAR image. In this paper a method based on channel equalization is proposed to remove the RFI yet preserve SAR image quality. The effectiveness of the method is also verified with the real data from an airborne VHF/UHF UWB SAR.