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提出了一种基于非均匀天线阵的超分辨测向算法 .该算法利用了数字波束形成技术 (DBF) ,因而设备简单 ,适应性强 .为实现超分辨测向 ,算法基于Gram -Schmidt正交 (GSO)网络 ,将干扰对消的原理用于信号的方向自适应定位 .算法可同时估计波达方向及信源个数 ,不需预先知道或估计信源数 ,而且算法简单 ,便于硬件实现 .仿真结果表明 ,算法可实现超分辨测向 ,而且在一定条件下 ,测向精度及分辨率优于MUSIC算法 .
This paper proposes a super-resolution direction finding algorithm based on non-uniform antenna array, which uses digital beamforming (DBF) technology, so the device is simple and adaptable.In order to achieve super-resolution direction finding, the algorithm is based on Gram-Schmidt orthogonal (GSO) network, the principle of interference cancellation is used for signal self-adaptive positioning.The algorithm can simultaneously estimate the direction of arrival and the number of sources, without knowing or estimating the number of sources in advance, and the algorithm is simple and easy to implement by hardware The simulation results show that the algorithm can achieve super-resolution direction finding, and under certain conditions, the accuracy and resolution of the direction finding are better than the MUSIC algorithm.