摘要
提出了一种基于移动最小二乘法拟合的天线增益指向模型构建方法。在天线方向图为理想函数条件下,将天线增益与指向建立联系,构建天线增益指向模型;将该模型形成模拟的数据库,应用移动最小二乘法进行拟合,得到反映任意指向与天线增益关系的天线方向图拟合函数。在不同权函数的条件下对天线方向图的主瓣部分进行拟合仿真,进行了误差分析及权函数的作用分析,证明了该方法比传统的最小二乘法拟合精度更高,也证明了该模型构建方法的有效性。
The construction of antenna gain pointing model based on m posed. An antenna gain pointing model is constructed by establishing ovable least square method is pro- the relation between antenna gain and direction when the antenna pattern is an ideal function. With the model as database and movable least square method for fitting, the antenna pattern fitting function in reflecting the relation between arbitrary di- rection and antenna gain could be acquired. Fitting simulations under different weight functions are done. The error analysis and role analysis of the weighted function indicate that this method could acquire higher -fitting precision as compared with the traditional least square method, and the effectiveness of this model construction.
出处
《通信技术》
2016年第5期549-553,共5页
Communications Technology
基金
国家自然科学青年基金(No.61401507)~~
关键词
方向图模型
移动最小二乘法
函数拟合
误差分析
antenna pattern model
MLS （movable least square）
function fitting
error analysis
