Unbalance of amplitude phase in radar receiving channels and mismatch of frequency characteristic within channel band may affect the sidelobc level and output signal-to-noise(SN)ratio of digital beam forming(DBF)seriously.

• 雷达接收通道间的幅相不一致与通道带内频率特性失配对DBF(数字波束形成)的副瓣电平及输出信噪比有很大影响。