摘要
基于矩阵论和可行集分析，本文首先指出在相位扰动生成阵列深零点问题中，不论相位大扰动或小扰动均可利用ＭＤＬＳ方法（修正阻尼最小二乘法）统一地进行求解。然后给出了在均匀分布阵列、泰勒分布阵列中使用ＭＤＬＳ方法生成深零点的计算实例。实例表明该算法快速、有效、稳定性好。最后本文研究了深零点位置变化时各个单元相位的变化规律，其结果已显示了最边侧单元是最关键单元，这一结论可为仅控制部分单元相位生成阵列零点提供单元选择依据。
Based on the analysis of matrix theory and optimal permissible solution set,a phase perturbation calculating method in phase-only nulling arrays-MDLS method (the Modified Damped Least Square method)is firstly presented,which can be used to solve both the small and the large phase perturbation problems,accurately, efficiently and stably. calculation examples of a sinc pettern array and Taylor pattern array are then given. Finally,the phase variations of different elements are studied. It is shown that the last couple elements are the key elements. This conclusion offers reference to element selection in partial adaptive phase nulling arrays.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1994年第1期48-54,共7页
Acta Electronica Sinica
