一种低复杂度联合过程估计干扰对消方法  

A Low Complexity Joint Process Estimator for Interference Cancellation

作　　者：管吉兴[1] 鲁振兴[1] 张焱[1] 洪永彬 尹伟 GUAN Jixing;LU Zhenxing;ZHANG Yan;HONG Yongbin;YIN Wei(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2021年第7期546-550,共5页Radio Engineering

基　　金：国家部委基金资助项目。

摘　　要：针对连续波噪声雷达在发射泄漏和近距离杂波信号对消过程中,传统联合过程估计方法运算量过大的问题,提出了一种基于参考信号AR近似的低复杂度联合过程估计对消方法。当参考信号AR建模的阶数低于对消滤波器阶数时,仅需要一个和AR模型阶数相同的格型预测器就可以实现对参考信号的去相关处理,从而降低联合过程估计算法的运算量。仿真结果表明,提出的低复杂度联合过程估计对消算法可以实现快速收敛,并且具有和传统联合过程估计算法相同的收敛特性。In the cancellation of transmitting signal leakage and close range clutter for continuous wave noise radar,a low complexity joint process estimator is proposed based on the AR modeling of the reference signal,to reduce the computational load of traditional joint process estimator.If the order of AR modeling of the reference signal is lower than that of the cancellation filter,only a lattice filter with the same order as the AR model is needed to decorrelate the reference signal,reducing the computational complexity of the joint process estimator.Simulation results indicate that the proposed low complexity algorithm can converge rapidly and has the same convergence rate with traditional joint process estimator.

关 键 词：连续波噪声雷达 干扰对消 联合过程估计 AR建模 

分 类 号：TN958.97[电子电信—信号与信息处理]