阵列方向图综合中PSO算法粒子越界处理研究  

Disposal of Particles Cross Border of PSO Algorithm in Beam Pattern Synthesis

作　　者：禚真福[1] 杨永建[1] 樊晓光[1] 王晟达[1] 黄柏儒 赵星辰[2] 

机构地区：[1]空军工程大学航空航天工程学院,陕西西安710038 [2]空军工程大学空管领航学院,陕西西安710051

出　　处：《现代防御技术》2016年第1期218-224,共7页Modern Defence Technology

摘　　要：针对PSO算法中粒子越界处理的常规方法使得粒子容易陷入局部最优解,优化速度和收敛精度大大降低的问题,提出了一种无需越界检测,无需粒子位置调整的归一化方法。均匀线阵扇形、低副瓣、带零陷低副瓣方向图综合实例表明:新方法在保证粒子不越界的基础上,不破坏粒子的飞行轨迹,能够有效提高PSO算法的优化精度和收敛速度,极大地提高了PSO算法性能。The conventional method when particle swarm optimization （PSO） algorithm＇ s particles cross border make the algorithm converged to local optimum, and the speed and precision of PSO algorithm are reduced. Aiming at this problem, a new particles cross border, nor needs particles position method is proposed, which neither needs detection of adjustment. The synthesized beam pattern of uniform linear array shows that the new method can improve the performance of PSO algorithm, do not break the trajectory of particles＇movement, ensure particles are under desired range and improve optimization preci sion and convergence velocity.

关 键 词：PSO算法 越界处理 局部最优 均匀线阵 方向图综合 归一化方法 

分 类 号：TN820.12[电子电信—信息与通信工程] TP391.9[自动化与计算机技术—计算机应用技术]