基于归一化方法的二维子阵级ADBF  

Two-dimensional ADBF at subarray level based on normalization method

作　　者：胡航[1] 杨秀萍[2] 刘伟会[1] 邓新红[1] 

机构地区：[1]哈尔滨工业大学电子与信息技术研究院,哈尔滨150001 [2]黑龙江大学电子工程学院,哈尔滨150080

出　　处：《哈尔滨工业大学学报》2009年第1期49-52,共4页Journal of Harbin Institute of Technology

摘　　要：子阵级ADBF在相控阵雷达中有重要应用.研究二维子阵级ADBF方法.提出了平面相控阵的子阵级ADBF的信号模型.引入了基于归一化方法的二维子阵级ADBF;通过对子阵输出进行归一化处理,使各子阵的噪声功率相同,从而在无干扰时得到了所希望的静态方向图,因而解决了自适应与非自适应工作模式之间的转换问题;而在存在干扰的情况下,也可对干扰进行有效抑制.该方法与常规的子阵级ADBF相比,明显改善了旁瓣电平.仿真结果证明了其有效性.To better apply the ADBF at subarray level to the phased array radar, the two-dimensional ADBF method at subarray level was studied. A signal model of ADBF at subarray level is presented, which is suitable for plane phased array. The normalization method was introduced into the two-dimensional ADBF at subarray level, which normalized the subarray outputs to make the noise power of each subarray be the same, and the desired quiescent pattern was achieved in the absence of jammer, thereby the conversion problem between a- daptive and non-adaptive work modes was resolved. The method based on normalization processing can sup- press jammer effectively and improve the sidelobe level markedly compared with the conventional method in the presence of jammer. Simulation results indicate the validity of the introduced methods.

关 键 词：子阵级相控阵 二维ADBF 归一化处理 方向图控制 旁瓣抑制 

分 类 号：TN957.51[电子电信—信号与信息处理] TN911.7[电子电信—信息与通信工程]