MIMO雷达正交恒包络OFDM信号设计  

Orthogonal Constant Envelope OFDM Signals Design for MIMO Radar

作　　者：刘婧逸[1] 张杰[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《武汉理工大学学报》2010年第3期110-114,共5页Journal of Wuhan University of Technology

摘　　要：正交波形设计是MI MO(Multiple-input Multiple-out:MI MO)雷达研究的一个重要方向。采用全局遗传模拟退火算法(Global Genetic Si mulated Annealing Algorithm:GGASA)搜索出具有较好自相关特性的恒包络OFDM(OrthogonalFrequency Division Multiplexing:OFDM)信号,并对算法中适应度函数和相关种群的设定进行调整,产生正交恒包络OFDM信号编码集合。理论分析和相关仿真证实:正交恒包络OFDM信号编码集合产生简便,且具有较好的自相关、互相关特性,可作为一种有效的MI MO雷达波形。The design of orthogonal code sets for MIMO radar is an important issue.In this paper,GGASA is used to find out constant envelope OFDM signals with better autocorrelation property.Then based on this,after justifying the fitness function and the population properly,new orthogonal constant envelope OFDM code sets can be designed.Theoretical analysis and simulation results demonstrate that the orthogonal constant envelope OFDM code sets have superior autocorrelation and cross-correlation property and can be used as effective MIMO radar signals.

关 键 词：MIMO雷达 恒包络OFDM 全局遗传模拟退火算法 

分 类 号：TN958[电子电信—信号与信息处理]