摘要
在实际应用中各通道间的幅度调整范围可能是受限的,如果直接对现有阵列天线旁瓣优化所得窗权值进行限幅那么将引起旁瓣上升。对此,提出将幅度范围作为约束条件进行旁瓣优化,并在该非线性约束下建立相应的凸优化模型进行优化解算。仿真结果表明,所提方法是有效的。
In engineering application, the amplitude dynamics between channels may be limited. If the amplitude of weights obtained by normal side-lobe optimization for antenna array is directly limited, the actual side-lobe level will rise. To solve this problem, new method is presented, which takes amplitude dynamics as constraint, and constructs corresponding convex optimization model under the nonlinear constraint to find the optimized solution. Simulation results show that the presented method is valid.
出处
《中国电子科学研究院学报》
2013年第1期48-52,75,共6页
Journal of China Academy of Electronics and Information Technology
关键词
阵列天线
波束形成
凸优化
antenna array
beam forming
convex optimization
