机载天线方向图回归研究  

Regression analysis of airborne antenna pattern

作　　者：张建华[1] 李振亚[1] 

机构地区：[1]电子工程学院,安徽合肥230037

出　　处：《电波科学学报》2015年第4期777-782,共6页Chinese Journal of Radio Science

摘　　要：利用工程软件建立无人机及其天线的一体化仿真模型,综合考虑飞行姿态、机载天线对地面接收天线的极化匹配和方向性等因素,研究了机载天线对地面目标的干扰方向图.采用遗传算法,结合机载天线仿真的数值结果,设计适应度函数,进行方向图回归研究,得到了便于实际应用的解析公式.Based on the established simulation model that integrates an unmanned aerial vehicle(UAV)with its airborne antenna,the interference patterns of the airborne antenna for ground target were studied with engineering software,considering the flight attitude,the polarization match of the airborne antenna for ground receiving antennas and the direction pattern of the airborne antenna.Combined with the numerical results of the airborne antenna simulation,a fitness function was proposed for the regression of the interference patterns by genetic algorithm.An analytical formula is obtained which is believed to be suitable for practical application.

关 键 词：机载天线 方向图 天线极化 极化匹配 曲线回归 

分 类 号：V243[航空宇航科学与技术—飞行器设计] V279