摘要
为了较好地抑制干扰位置快变化的运动干扰,在均匀圆阵基础上,从统计模型的角度出发,通过对采样协方差矩阵进行角度扩展处理,提出了一种干扰零陷加宽的自适应波束形成方法,并对不同扰动模型进行了仿真.仿真结果表明,该方法在干扰处的零陷得到了相应的展宽,并在一定的扰动范围内,输出信干噪比保持不变,能够有效地自适应抑制干扰位置快变化的运动干扰.
To suppressing effectively the movement interference resulted from the interference position fast changing, starting from a statistical model, this paper presents a scheme for adaptive beam forming with interference nulling widening, based on the uniform circular array, and performs simulation on different disturbance models. Simulation results show that this scheme can widen correspondingly the nulling at interference and keep the output ratio of signal to interference noise constant within a certain range of disturbance, thus suppressing the movement interference due to its position fast changing, effectively and adaptively.
出处
《空军预警学院学报》
2013年第1期28-31,共4页
Journal of Air Force Early Warning Academy
关键词
运动干扰
均匀圆阵
波束形成
零陷展宽
movement interference
uniform circular array
beam forming
nulling widening
