和差极化方式不同导致跟踪问题的分析  

Analysis of Tracking Problem Caused by Different Polarization Patterns of Sum and Difference Channels

作　　者：周阳辉[1] 周朝猛[1] 章剑[1] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《电讯技术》2010年第10期108-111,共4页Telecommunication Engineering

摘　　要：船载卫通站在不同海域跟踪B极化信标出现了相位渐变的现象,根据双通道接收机跟踪原理进行公式推导,证明当和差通道极化方式不一致时,和差通道受环境和极化角影响导致的相位变化是反向的,此时即使跟踪的是圆极化信标,极化角的变化也会导致相位变化。The phase changed in the ship-board satellite station when tracing B polarization signal in different waters. According to the principle of dual-channel receiver tracking, it is known that when the sum and difference channels＇ polarization is inconsistent, the phase＇s change caused by the environment and the polarization angle is in the opposite direction. At this point even if the circular polarization signal beacon is tracked, the polarization angle＇s change will result in phase＇s change.

关 键 词：船载卫通站 极化方式 自跟踪 跟踪接收机 单通道 校相 

分 类 号：TN820.4[电子电信—信息与通信工程]