基于改进Prony算法的RFI抑制处理方法研究  

Research of RFI Suppressing and Processing Method Based on Improved Prony Algorithmic

作　　者：邱铭铭[1] 王磊[1] 叶伟[1] 贾鑫[1] 

机构地区：[1]装备指挥技术学院,测量控制系,北京,101416

出　　处：《装备指挥技术学院学报》2004年第1期76-80,共5页Journal of the Academy of Equipment Command & Technology

基　　金：部委级资助项目

摘　　要：研究了以正弦波建模为基础的超宽带合成孔径雷达(ultra wideband-synthetic aperture radar, UWB-SAR)抑制射频噪声干扰(radio frequency interference, RFI)的方法;详细研究了复噪声中正弦参数估计的统计性能,给出了模型中各参数估计的克拉美-罗限;分析了基于Prony法的准最优算法和迭代最大似然法2种参数估计方法,通过改进传统的Prony算法,改善了RFI信号参数的估计性能.最后,通过仿真实验,验证了所研究抑制算法的有效性.The processing method of RFI (radio frequency interference) suppression in UWB-SAR on the basis of sinusoidal model is studied. The statistical capability of estimate of sinusoidal parameter in complex noise is researched in detail and the corresponding CRLB is given. The semi-optimal algorithmic and the iterative maximum likelihood method based on Prony is studied. The conventional Prony algorithmic is improved to ameliorate the statistical capability of parameters of RFI. Finally, the effectiveness of the above algorithmic is validated through simulation experiment.

关 键 词：超宽带合成孔径雷达 射频噪声干扰 正弦波建模 PRONY算法 

分 类 号：TN958[电子电信—信号与信息处理]