一种基于简化极化敏感阵列的APES波束形成算法  

An APES Beamforming Algorithm Based on Simplified Polarization Sensitive Array

作　　者：幸璐璐[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2014年第11期1505-1509,共5页Telecommunication Engineering

摘　　要：为了有效降低极化敏感阵列各共点分量之间互耦的相互影响,进一步提高极化阵列的滤波性能,基于新的阵列模型提出了幅度相位估计(APES)波束形成算法。首先,给出了简化极化阵列的布阵模型和接收信号模型;然后,针对简化极化阵列给出了极化APES波束形成算法的详细理论推导,得到了最优权向量的表达式;最后,通过仿真实验验证了极化APES在波束形成方面的有效性。仿真结果表明该算法在强期望信号功率、低采样快拍数或是存在相干干扰的情况下都具有稳定的波束图。In order to reduce the mutual coupling effect between collocated elements of the polarization sen-sitive array（PSA） and further improve filter performance,a novel APES（Amplitude and Phase Estimation）beamforming algorithm using the simplified PSA is proposed in this paper. First,the array model and the re-ceived signal model of the simplified PSA are presented. Second,the principle of the proposed algorithm isderived and the expression of the optimal weight vector is achieved. Finally,the simulation results areshown to verify the effectiveness of the proposed algorithm. Simulation results indicate that the proposed al-gorithm can obtain a stable beam pattern under the circumstances of high desired signal power,low sam-pling snapshots and coherent interferences.

关 键 词：极化敏感阵列 自适应波束形成 幅度相位估计 互耦 波束图 

分 类 号：TN973[电子电信—信号与信息处理]