摘要
指向精度是车载天线的关键技术指标,直接影响到整个系统工作的可靠性,而影响车载天线指向精度的因素众多,介绍了车载天线系统的组成和对指向精度的要求,给出了指向精度的计算方法,分析了指向精度的组成和产生原因,改进了车体、天线结构、天线驱动的设计方法,提高了系统的指向精度,在实际测试和使用中指向精度有明显提高,和理论计算结果相符,对车载天线系统的设计具有指导作用。
Directing precision is an important indicator of vehicle antenna system,impacting reliability of the system. A number offactors may have influence on directing precision. The paper analyzes the request of directing precision about vehicle antenna system,introduces the computing method of directing precision,and analyses constitutes and producing reasons. The new method can increase system directing precision through improving design method of vehicle, antenna and drive. In actual test, the directing precision is obviously enhanced,conforming to theoretical computing. The paper has direction function about vehicle antenna system design.
出处
《无线电工程》
2018年第4期319-323,共5页
Radio Engineering
基金
"十三五"装备预研领域基金资助项目(61405180502)
关键词
车载天线
指向精度
误差源
vehicle antenna
directing precision
error source
