聚类子阵划分及子阵级单脉冲测角性能分析  

Subarray partitioning based on the clustering algorithm and the performance of subarrayed monopulse technology

作　　者：熊子源[1] 徐振海[1] 肖顺平[1] 

机构地区：[1]国防科学技术大学电子信息系统复杂电磁环境效应国家重点实验室,湖南长沙410073

出　　处：《系统工程与电子技术》2013年第9期1867-1872,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(60901072)资助课题

摘　　要：在大型阵列天线的设计中,考虑到系统成本及复杂性,通常会采用子阵技术。然而,由于理论分析不足,工程中普遍接受的是较为简单的子阵划分,这种设计的缺陷制约雷达的整体性能。针对阵列雷达单脉冲技术,揭示了最优子阵划分与聚类问题的等价关系,建立了聚类算法求解最优子阵划分的理论基础,并推导了任意子阵划分下的单脉冲技术及其性能指标。聚类方法能够有效地获得最优的划分方案。通过数值实验,对所提方法以及经典的子阵列划分方法进行了仿真对比,验证了聚类子阵划分方法的有效性。Considering the cost and the complexity in the design of large array antenna, subarray partitio- ning is introduced. However for lacking of analysis, very simple partitioning strategy is usually adopted in prac- tice, which extremely restricts the performance of the radar system. The equivalence relation of the optimum subarray partitioning and clustering for the monopulse technology are revealed. Then the theory to solve subar- ray partitioning by clustering algorithms is established, and the monopulse technology at subarray level and its performance index are induced. The proposed subarray partitioning method based on clustering can get the opti- mum subarray configuration effectivel~~. Numerical experiments about the proposed method and comparing re- search with the classic method are presented, and the results demonstrate the efficiencv of the r^rnnn^c] rnpthnrI

关 键 词：阵列信号处理 子阵划分 聚类分析 单脉冲 角度估计 

分 类 号：TN953.5[电子电信—信号与信息处理]