二维矩形耦合本振阵列的波达方向估计  

DOA Estimations of Coupled Two-Dimensional Rectangular of Local Oscillator Array

作　　者：李军[1] 姜永华[1] 曲洪东[1] 柏涛[2] 

机构地区：[1]海军航空工程学院电子工程系,山东烟台264001 [2]海军驻239厂军事代表室,北京100013

出　　处：《中国电子科学研究院学报》2010年第4期364-369,共6页Journal of China Academy of Electronics and Information Technology

摘　　要：提出以矩形耦合振荡器阵列为本振阵列,分析了矩形耦合本振阵列的相位控制原理及方法,推导了耦合本振阵列稳定锁相同步时,本振阵列阵元间形成均匀的相位分布,且等相位差只与边界上振荡器的自由振荡频率有关。利用耦合本振阵列阵元间等相位差的这一属性,调节耦合本振阵列边界上的振荡器自由振荡频率,改变耦合本振相邻阵元的等相位差,实现波达方向估计。文中对波达估计算法进行了计算机仿真,验证了其理论分析结果,为注频锁相耦合振荡器阵列应用于天线接收技术提供有力的理论基础。The local oscillator arrays using the rectangular coupled oscillator arrays are presented and its phase control principles are analyzed.It is deduced that the uniform phase distribution is formed among LO array elements when coupled-LO arrays is synchronized,and the phase difference only has relation with the free oscillation frequencies of the boundary oscillator.According to this attribute,DOA estimates by adjusting the boundary oscillators frequencies of rectangular coupled-LO arrays can be obtained.DOA estimates using rectangular coupled-LO arrays are simulated,and the theoretical analysis results are verified.Also with the strong theoretical basis is provided for the injection-locking coupled oscillator arrays applied to the antenna technology.

关 键 词：注频锁相 本振阵列 耦合振荡器 波达方向 

分 类 号：TN82[电子电信—信息与通信工程]