相控阵雷达系统中用于方向图综合的发射波束形成器设计
Transmit Beamformer Design for Beampattern Synthesis in Phased-Array Radar Systems
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中文总结 AI 辅助
该研究针对相控阵雷达的发射波束形成器，提出联合方向图匹配与干扰抑制的优化框架，通过交替最小化等方法设计算法，经仿真验证其性能优异且计算效率高。
中文摘要 AI 辅助
本文提出一种用于方向图匹配与干扰抑制的相控阵发射波束形成器设计，构建了联合处理这两个目标的优化框架。所得非凸问题通过交替最小化求解，各子问题存在闭式解，其中一个子问题可恢复经典的最大增益与零点置位相控阵波束形成器。为设计具备理论收敛保证的算法，将波束形成器设计重新表述为与原公式密切相关的非凸集合可行性问题，采用可证收敛的投影梯度下降法求解，并结合加速技术大幅提升经验收敛速度。大量仿真验证了所提方法的优异性能与计算效率。
英文摘要
This paper presents a phased-array transmit beamformer design for beampattern matching and interference suppression. We propose an optimization framework jointly addressing these two objectives. The resulting non-convex problem is solved via alternating minimization, where each subproblem admits a closed-form solution, one of which recovers the classical maximum-gain and null-steering phased-array beamformers. To design an algorithm ensuring theoretical convergence guarantees, the beamformer design is then reformulated as a non-convex set feasibility problem, closely related to the original formulation. This problem is addressed using a provably convergent projected gradient descent method and further enhanced with acceleration techniques that substantially improve empirical convergence. Extensive simulations validate the excellent performance and computational efficiency of the proposed method.
