摘要
相位干涉仪测角算法机理简单、运算量小,被广泛应用于被动雷达测向系统中。然而当目标频率较高或者天线间距较大时,容易出现相位模糊,造成相位干涉仪测向失败。可利用阵元相互组合形成多组干涉仪基线,通过寻找最优模糊数得到来波方向。以均匀八元圆阵为例,对算法进行静态和动态仿真实验,结果表明该算法可以对来波方向不大于40°的目标进行跟踪。
Direction finding algorithm of phase interferometer has simple and small computational complexity,which is widely used in direction finding system for radar seeker.However,the higher target frequency or the wider antenna spacing,the easier to appear phase vague and confusing,causing the failure of phase interferometer direction finding system.Array elements can be combined with each other to form multiple groups of baselines,and then get the target direction by finding optimization ambiguity of baselines.Take an eight elements uniform circular array for example,static simulation and dynamic simulation have been performed in the lab.The result shows the algorithm can track target accurately less than 40 degree field of view.
作者
吴迎春
蒋开创
陈祎
奚银
WU Ying-chun;JIANG Kai-chuang;CHEN Yi;XI Yin(Shanghai Radio Equipment Research Institute, Shanghai 200090, Chin)
出处
《制导与引信》
2017年第3期16-19,共4页
Guidance & Fuze
关键词
圆阵
干涉仪
测向
circular array
phase interferometer
direction finding
