SOCP宽带波束形成器非样本频点上恒定束宽问题研究

Research on Constant Beamwidth at Non-sampling Frequency Points of Broadband Beamformer based on SOCP

本文首先指出了基于SOCP的宽带波束形成器设计方法在非样本频点上存在束宽不稳定的现象,然后提出对非样本频点上频率响应进行平滑来改善非样本频点上的束宽稳定性,仿真结果表明该方法很好的保持样本频点与非样本频点上束宽的一致性。

To the broadband beamformer designed based on second-order cone programming （SOCP） , its beamwidth at non-sampling frequency points is unstable. In order to improves beamwidth stability at non-sampling frequency points, a method by way of frequency response smoothing at non-sampling frequency points is presented. Simulation results demonstrate that this method can maintain beamwidth consistency at both sampling frequency points and non-sampling frequency points.