相位加权实现多方位合成波束的研究  

A Study on Beamforming Method for Multiple Directions Based on Phase Weighting

作　　者：田钢[1] 邢文革[1] 王建明[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2009年第8期17-20,共4页Modern Radar

摘　　要：在空域多个任意方位同时合成波束有利于数字阵列雷达多功能、多任务的实现。文中介绍了相同信号在空域多个方位合成波束的原理和目前采用饱和功放发射需解决的问题;在此基础上提出了用相位加权解决这些问题的方法,最后通过仿真对正常发射、相位加权方法和改进相位加权方法发射的波束主瓣增益进行了对比,验证了该方法在保持副瓣性能上的有效性与工程实现的可行性。Beamforming for multiple directions of the airspace is helpful for the realization of digital array radart multiple functions and multiple tasks. Firstly, the principle of beamforming for multiple directions with a same signal and the problems due to the ap- plication of saturated power amplifiers are introduced. Then, a method of phase weighting is proposed to solve these problems. Fi- nally, the gains of main lobes are compared among the normal method, the phase weighting method and the improved method of phase weighting. Simulation results demonstrate that it is efficient to maintain the sidelobe level and feasible for engineering application

关 键 词：多方位波束合成 相位加权 波形设计 

分 类 号：TN95[电子电信—信号与信息处理]