计算机与数字工程2026，Vol.54Issue(6)：1547-1552,1557,7.DOI:10.3969/j.issn.1672-9722.2026.06.001
基于RLS的频域自适应多通道均衡算法
RLS-based Frequency Domain Adaptive Multichannel Equalization Algorithm
摘要
Abstract
In broadband array radar due to the difference in frequency response of analog devices such as antennas,RF com-ponents,the amplitude and phase of each channel are inconsistent i.e.,channel mismatch.The discrepancy in channel alignment can result in radar system instability and a decline in operational performance.Traditional frequency domain least squares equaliza-tion algorithms,due to their computational intensity and challenging implementation in engineering,may exacerbate these issues.In light of this,the present paper suggests incorporating the adaptive Recursive Least Squares(RLS)algorithm in the frequency do-main as a more efficient solution for equalization filtering.The algorithm increases the smoothness of the in-band data and improves the equalization performance by shifting the data of the ideal equalizer,intercepts the in-band data equalization,reduces the fitting error,and further improves the equalization accuracy while reducing the number of iterations to lower the overall computing power.Finally,the optimal weight vector of the equalizer is solved by iteration,which avoids the matrix inverse operation in the frequency domain least squares algorithm and reduces the computational complexity of the algorithm.Simulation data show that this method has better equalization performance than the existing frequency-domain least-squares algorithms,focusing on in-band data greatly reduces the overall computational volume,while possessing lower computational complexity and simple engineering implementation.关键词
宽带阵列雷达/通道失配/通道均衡/自适应Key words
wideband array radar/channel mismatch/channel equalization/self-adaptation分类
信息技术与安全科学引用本文复制引用
赵康,张治中,冯姣,李鹏..基于RLS的频域自适应多通道均衡算法[J].计算机与数字工程,2026,54(6):1547-1552,1557,7.基金项目
国家自然科学基金项目(编号:61501244,61501245,62171229) （编号:61501244,61501245,62171229）
国家重点研发计划(编号:2022YFB2902101) （编号:2022YFB2902101）
工信部行业专项"基于FR16的5G大上行、低时延基站设备"(编号:TC210H02P/2)资助. （编号:TC210H02P/2）
