某GNSS-R测高仪定位天线结构设计与分析  

Structure Design and Analysis of Positioning Antenna of a GNSS-R Altimeter

作　　者：刘英虎 王敏[1] 韩博 郭睿 LIU Yinghu;WANG Min;HAN Bo;GUO Rui(The 20th Research Institute of CETC,Xi’an 710068,China)

机构地区：[1]中国电子科技集团公司第二十研究所,陕西西安710068

出　　处：《电子机械工程》2023年第4期17-20,36,共5页Electro-Mechanical Engineering

摘　　要：为了解决现有高精度测量型全球导航卫星系统(Global Navigation Satellite System,GNSS)接收天线无法满足毫米级的定位测量精度和高的数据反演精度问题,文中设计了一种新型全球导航卫星系统反射信号(Global Navigation Satellite System Reflected Signal,GNSS-R)测高仪定位天线,从静力学强度、动力学强度和动力学动刚度等方面对天线结构进行了力学仿真,并对天线基频及安全裕度进行了计算。仿真分析结果表明该天线满足抗力学环境设计要求。该定位天线结构简单、连接可靠、外形尺寸小,并有良好的空间环境适应性,对类似星载定位天线的结构设计具有指导意义。In order to solve the problem that the existing global navigation satellite system receiving antenna for high precision measurement can’t meet the millimeter-level positioning accuracy and high data inversion accuracy,a new global navigation satellite system reflected signal altimeter positioning antenna is designed.The antenna structure is simulated from aspects of static strength,dynamic strength and dynamic stiffness.And the fundamental frequency and safety margin of the antenna are calculated.The simulation results show that the positioning antenna meets the resistance environmental design requirements.This positioning antenna has the advantages of simple structure,reliable connection,small size and good adaptability to space environment.It is of guiding significance to the structure design of similar space-borne positioning antennas.

关 键 词：高精度 定位天线 结构设计 仿真分析 

分 类 号：TN82[电子电信—信息与通信工程]