基于均匀平面阵的恒定束宽波束形成

对宽带信号进行一维的处理和波束形成可以采用基于实数加权的平面阵天线实现。而采用多维的处理是为了对信号进行空域采样并对信号的各频率进行独立的处理。对基于空间响应变化约束的波束形成（SRVCPS）和基于离散傅里叶反变换（IDFT）的波束形成，这两种恒定柬宽波束形成方法进行了比较。SIWCPS方法根据最优化方法进行求解，采用空间响应的变化（SRV）约束以确保宽带波束形成的恒定束宽性能。IDFT方法对期望波束图进行傅里叶反变换求解权值。通过仿真实验对比了两种方法的波束宽度、旁瓣幅度以及处理速度。

Frequency Invariant Beamforming Using Uniform Planar Array

Wideband operation and pattern shaping in one dimension can be achieved using a planar army antenna with a real - valued coefficients or weights. The extra dimension is used to sample the signal in space and treat each frequency independently. Two methods to calculate the weights for the desired array pattern have been compared. These are Spatial Response Variation Constraint Pattern Synthesis （SRVCPS） and Inverse Discrete Fourier Transform （IX）IT） . The SRVCPS method relies on optimizations. The Spatial Response Variation （SRV） is constrained to ensure wideband operation. The IDIT method applies inverse Fourier transformation to the desired pattern which produces the required weights. Methods are compared in terms of beamwidth, sidelobe level and processing speed.