车载站三轴天线座测角精度分析  

Analysis to Precision of Angle-measuring for the Three Axes Pedestal of Vehicle Borne Station

作　　者：梁维力[1] 

机构地区：[1]中国电子科技集团公司第39研究所,陕西西安710065

出　　处：《现代电子技术》2007年第15期64-65,74,共3页Modern Electronics Technique

摘　　要：从AZ-EL+第三轴天线座的坐标变换公式出发,推导出第三轴角度对地平系AZ,EL角影响的数学模型,从而对AZ-EL型天线座在引入第三轴后对测角精度的影响进行了计算。计算证明:三轴天线座用于测角系统,只要第三轴编码器精度足够高,并对其加以精确标定,其对天线测角精度的影响很小。This paper derives mathematic mould of affection of the third axis angle to azimuth and elevation of horizontal coordinate. Through analysis and calculation, the conclusion is drawn that the three axes pedestal is used in angle-measuring system,if the precision of the third axis encoder is enough high and the calibration is accurate,the precision of angle -measuring will not be much affected.

关 键 词：三轴天线座 测角精度 测控系统 坐标转换 

分 类 号：TN82[电子电信—信息与通信工程]