雷达通信两用系统的稀疏阵设计
Sparse Array Design for Dual-Function Radar-Communications System
摘要：
研究了雷达-通信两用稀疏阵的设计问题。我们的目标是设计一个稀疏阵列，可以同时形成所需的波束响应，并为多个下行链路用户提供所需的信号干扰噪声比水平。此外，我们还考虑到每个天线的辐射功率的限制。该问题被制定为一个二次约束二次规划与联合稀疏促进正则化，这是NP-困难的。由此产生的问题是解决的共识交替方向方法的乘数，享有并行实施。数值仿真表明了该方法的有效性和优越性，从而导致更省电的解决方案。
英文摘要：
The problem of sparse array design for dual-function radar-communications is investigated. Our goal is to design a sparse array which can simultaneously shape desired beam responses and serve multiple downlink users with the required signal-to-interference-plus-noise ratio levels. Besides, we also take into account the limitation of the radiated power by each antenna. The problem is formulated as a quadratically constrained quadratic program with a joint-sparsity-promoting regularization, which is NP-hard. The resulting problem is solved by the consensus alternating direction method of multipliers, which enjoys parallel implementation. Numerical simulations exhibit the effectiveness and superiority of the proposed method which leads to a more power-efficient solution.
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