导航抗干扰接收机中通道误差的影响及校准方法  

Effect of Amplitude-and-Phase Errors on the Performance of Anti-jamming Antennas and Its Channel Calibration

作　　者：李强[1] 王昊[1] 

机构地区：[1]南京理工大学,江苏南京210094

出　　处：《无线电通信技术》2016年第2期77-79,共3页Radio Communications Technology

摘　　要：针对导航抗干扰天线阵列的通道间幅相误差对抗干扰性能的影响问题,分析了接收机部分幅相误差的形成原因。并通过Matlab软件分析了在单通道存在幅相误差和多通道均有幅相误差的情况下,对抗干扰性能进行仿真,总结了不同幅相误差造成的影响。最后给出了在数字处理部分校准通道幅相误差的方法,该方法只需在测试或组装前进行一次校准操作即可。给出的仿真结果证明了该方法的能够有效校准通道的幅相。For Navigation channel interference between the antenna array amplitude and phase errors on the impact of anti-jamming capability,the causes of amplitude-and-phase errors in receiver portion is analyzed. And Matlab software is used for anti-jamming performance simulation in case of single-channel and multi-channel amplitude and phase errors,and the effect of different amplitude and phase errors is also summarized. Finally,the method in the digital processing section for calibration channel is proposed,which just need one calibration operation prior to testing or assembling. Simulation results prove that the method of amplitude and phase provide an effective calibration for channel amplitude and phase.

关 键 词：抗干扰 通道误差 导航 FFT校准 

分 类 号：TN957.8[电子电信—信号与信息处理]