无线电工程2024，Vol.54Issue(1)：136-141,6.DOI:10.3969/j.issn.1003-3106.2024.01.018
大风扰动对深空探测大天线指向的影响分析
Analysis of the Influence of Gale Disturbance on the Pointing of Large Antenna for Deep Space Exploration
摘要
Abstract
Communication of deep space measurement and control usually adopts some measures to enhance the tracking performance of the equipment,such as increasing the carrier frequency and the diameter of the parabolic antenna,but it also brings some problems such as narrowing the half-power beam width of the antenna,reducing dynamic characteristics,and weakening the antenna's ability to resist gust disturbances,etc.The antenna deformation and pointing deviation caused by gale disturbance can lead to gain loss in deep space exploration,while decrease of gain can cause unstable measurement and control tracking,increased bit error rate of data,receiver lost lock,and inability to complete remote control commands,influencing the normal execution of measurement and control tasks.In view of the influence of gale disturbance to carry out deep space exploration mission of 35 m A-E dual-reflector antenna rotating platform in Chinese deep space station,the changing characteristics of annual wind-speed and wind-direction in the area are analyzed statistically by measured data,and the wind-speed and the data of antenna pointing angle error within the tracking segment are compared and analyzed,the antenna pointing angle error and its influence on the gain of the uplink and downlink measurement and control under different wind-speeds and wind-directions are simulated.Based on the existing technical facilities of the equipment,the coping strategies for executing real-time tasks are proposed,thus reducing the influence of gale disturbance on measurement and control tasks,and improved the ability of the task execution of the equipment.关键词
大风扰动/增益损失/指向偏差/应对策略Key words
gale disturbance/gain loss/pointing deviation/coping strategy分类
航空航天引用本文复制引用
赵军,胡科飞,王际舟,展跃全,黄梦轩,雷浩..大风扰动对深空探测大天线指向的影响分析[J].无线电工程,2024,54(1):136-141,6.基金项目
国家部委基金资助项目Project Funded by National Ministries and Commissions of China （）
