摘要
针对数字多波束天线所特有的多波束性能测试和精密测距性能校准的需求,结合数字多波束天线的工作原理,分析比较了基于远场和近场的2种校准和测试方法,提出了数字多波束天线波束指向、波束电平和相位中心的修正方法,并结合实际系统完成了试验验证。试验结果表明:该测试和校准方法可高效率完成数字多波束天线系统的校准和测试工作,提高系统的测量精度,具有很强的实用价值。
Based on the special requirements of multi-beam performance test and high-precise ranging performance calibration for the digital multi-beam antenna and its operation principle,this paper analyzes two calibration and test methods respectively based on far-field and near-field.The correction methods for beam directivity,level and phase center of the digital multi-beam antenna are proposed,and the test demonstration is performed with practical system.The result shows that the method can effectively implement calibration and test for digital multi-beam antenna system and improve the measurement accuracy,and has higher practical value.
出处
《无线电工程》
2012年第2期42-45,共4页
Radio Engineering
基金
"十二五"国家科技支撑计划(2011BAH24B04)
