电讯技术
電訊技術
전신기술
TELECOMMUNICATIONS ENGINEERING
2015年
7期
741-745
,共5页
魏明山%葛铁志%杜潇%何晓毛
魏明山%葛鐵誌%杜瀟%何曉毛
위명산%갈철지%두소%하효모
测控天线%太阳校相%多模馈源跟踪系统%校相参数%波程差
測控天線%太暘校相%多模饋源跟蹤繫統%校相參數%波程差
측공천선%태양교상%다모궤원근종계통%교상삼수%파정차
TT&C antenna%solar phase calibration%multi-feed tracking system%phase calibration parame-ter%wave path difference
基于测控系统常用的大口径天线多模馈源跟踪系统校相需求,介绍了当前常用的校相方法,针对太阳校相单次校相结果误差大、需取均值使用导致校相周期长等缺点,通过分析多模馈源跟踪系统工作原理,提出了一种基于固定波程差的校相参数计算方法。该方法利用不同频点的精确校相值标定跟踪系统和、差通道之间波程差,进而计算出整个频段中各频点校相值。最后结合靶场遥测设备进行计算验证,应用表明该方法计算快捷,计算结果稳定可用,符合实际数据的变化趋势,能够满足各项实际工程应用需求。
基于測控繫統常用的大口徑天線多模饋源跟蹤繫統校相需求,介紹瞭噹前常用的校相方法,針對太暘校相單次校相結果誤差大、需取均值使用導緻校相週期長等缺點,通過分析多模饋源跟蹤繫統工作原理,提齣瞭一種基于固定波程差的校相參數計算方法。該方法利用不同頻點的精確校相值標定跟蹤繫統和、差通道之間波程差,進而計算齣整箇頻段中各頻點校相值。最後結閤靶場遙測設備進行計算驗證,應用錶明該方法計算快捷,計算結果穩定可用,符閤實際數據的變化趨勢,能夠滿足各項實際工程應用需求。
기우측공계통상용적대구경천선다모궤원근종계통교상수구,개소료당전상용적교상방법,침대태양교상단차교상결과오차대、수취균치사용도치교상주기장등결점,통과분석다모궤원근종계통공작원리,제출료일충기우고정파정차적교상삼수계산방법。해방법이용불동빈점적정학교상치표정근종계통화、차통도지간파정차,진이계산출정개빈단중각빈점교상치。최후결합파장요측설비진행계산험증,응용표명해방법계산쾌첩,계산결과은정가용,부합실제수거적변화추세,능구만족각항실제공정응용수구。
According to the phase calibration requirement for large-caliber antenna multi-feed tracking system in tracking,telemetry and control( TT&C) system,this paper introduces the commonly-used phase calibration methods,and provides a phase calibration calculation method based on fixed wave path differ-ence to overcome the shortcomings of solar phase calibration such as large error,requiring average value, and long calibration time through analyzing the principle of multi-feed tracking system. This method uses the precise value of phase calibrate in different frequency to calibrate the wave path difference between sunm and difference channels in tracking system,then calculates the value of phase in all frequencies. Fi-nally,the range equipment is adopted to perform calibration and validation. The application shows that the method computes fast,the calculation results are stable and available which conform to the change trend of actual data,and it meet the requirements of actual project application.