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为了满足宽带侦收的要求,提出了一种新的基于环形阵列的宽带天线阵列配置方案,利用2组独立空间欠采样通道得到有模糊的信号空域信息,并结合一定的解模糊算法和配对方法得到无模糊的空间信号到达角(DOA)估计.仿真结果表明,所提算法在搜索量小的优势下能实现二维方向角的高精度估计及正确配对,且2组通道的采样数据可并行处理,增强了算法的实时性.
In order to meet the requirements of wideband reconnaissance, a new configuration scheme of wideband antenna array based on ring array is proposed. Two sets of independent subspace sampling channels are used to obtain ambiguous signal spatial information. Combining with certain defuzzification algorithms and matching methods (DOA) estimation of space signal is obtained.The simulation results show that the proposed algorithm can realize the accurate estimation of two-dimensional directional angle and the correct pairing under the advantage of small search volume, and the sampling data of two groups of channels can be parallelized Processing, enhance the real-time algorithm.