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新一代相控阵雷达的天线阵列规模庞大,一般含有几百乃至上万个阵元。在阵元级实现自适应波束形成抗干扰和空时自适应处理杂波抑制,会极大地增加系统开销,甚至难以实现。在实际应用中,考虑到系统成本、信号处理运算量等因素,需要将大型阵列划分为适当的子阵,以减小接收所需通道数。文中通过子阵优化划分数学建模,研究子阵划分对干扰、杂波抑制性能的影响,探索最优子阵划分的数学求解方法,为大型阵列雷达研制提供理论支撑和工程可实现算法。
The new generation of phased array radar antenna array is large, usually contains hundreds or even tens of thousands of array elements. At the array level adaptive beamforming interference and space-time adaptive processing clutter suppression, will greatly increase the system overhead, and even difficult to achieve. In practice, taking into account the system cost, signal processing and other factors, the need to divide the large array into the appropriate sub-array to reduce the number of channels required to receive. In this paper, the mathematical modeling of subarray optimization partitioning is used to study the influence of subarray partitioning on the interference and clutter suppression performance, and to explore the mathematical solution method of the optimal subarray partitioning, which can provide theoretical support and engineering implementation algorithm for the development of large array radar.