有效的宽带宽角发射干扰置零新方法  

Efficient Wideband Jammer Nulling in Large Scanning Angle

作　　者：曹运合[1] 张守宏[1] 王胜华[2] 罗永健[1] 

机构地区：[1]西安电子科技大学雷达信号处理重点实验室,西安710071 [2]航天长征火箭技术有限公司704所,北京100076

出　　处：《电子与信息学报》2005年第4期577-579,共3页Journal of Electronics & Information Technology

摘　　要：相控阵雷达采用宽带技术是雷达发展的必然趋势。而抗宽带干扰技术是宽带相控阵雷达必须解决的问题, 该文针对发射信号为线性调频信号,提出了一种宽带宽角发射波束形成新方法。该算法在已精确估计出信号和干扰 方向的前提下,把窄带权和宽带权相结合形成最优权。该方法能在保证距离高分辨特性的前提下,在干扰方向形成 较宽凹口,文中给出了实现框图并仿真证实了该方法的有效性。Phased array radar combined with wideband technique is the development trend in radar, while technology of restraining wideband interference must be resolved in wideband phased array radar. A new wideband transmitting beamforming method is presented in this paper which uses LFM signal. The algorithm produces optimal weight by combining wideband with narrowband weight on the premise of accurate DOA estimation. The method can ensure high distance resolution of the signal and form pattern null in the direction of the interference. Simulation results demonstrate the effectiveness of the method.

关 键 词：线性调频 宽带雷达 波束形成 置零 

分 类 号：TN958.92[电子电信—信号与信息处理]