通道不一致性对自适应调零天线的影响分析

为了提高自适应调零天线的抗干扰性能，分析了通道不一致性对自适应抗干扰LMS(最小均方 )算法稳定性、收敛时间等方面的影响。同时仿真和分析了系统中造成通道不一致性的因素 ，仿真结果证明幅、相差异会严重恶化系统的性能。最后，给出了工程应用中的相应解决 措施和设计指导原则。

Analysis of channels inconsistence on adaptive nulling antenna

To inhance the anti-jamming performance of the adaptive nulling antenn as system, the influence of channels inconsistent is analysed, including stabili ty and convergency of the LMS algorithm. Some factors that can result in channel s inconsistence are simulated and the results show that the imbalance of amplit udes and phases can worsen the function of the system. Finally, some effective m easures and design principles are provided in engineering application.