Design of Linear Phased Array for Interference Suppression Using Array Polynomial Method and Particle Swarm Optimization

作     者：Abu-Al-Nadi, D. I. Ismail, T. H. Al-Tous, H. Mismar, M. J. 

作者机构：Univ Jordan Dept Elect Engn Amman Jordan Al Ahliyya Amman Univ Dept Elect & Commun Amman Jordan Princess Sumaya Univ Technol Dept Elect Engn Amman Jordan 

出 版 物：《WIRELESS PERSONAL COMMUNICATIONS》 (无线个人通信)

年 卷 期：2012年第63卷第2期

页      面：501-513页

核心收录：

学科分类：0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Linear phased arrays Null steering Array polynomial Pattern synthesis PSO 

摘      要：In this work, a linear phased array pattern design with null steering is achieved using the array polynomial technique and the Particle Swarm Optimization (PSO) algorithm. The null steering for interference suppression is obtained by controlling some of the roots on the Schelkunoff s unit circle while keeping the roots responsible for the main beam unchanged. The rest of the roots are controlled to minimize the Side Lobe Level (SLL) of the array pattern using the PSO algorithm. It has been demonstrated that this technique achieved more than 50% reduction in the parameters needed to be optimized compared with the conventional complex coefficients optimization techniques. Consequently, the fitness function is only responsible for the SLL as the prescribed controlled nulls and the mainbeam characteristics are solved analytically. The simulated results show the effectiveness of the proposed technique.