摘要
为查找青海省基准站网观测数据的异常原因,首先在某基准站采取了多种测试方法对可能导致数据异常的原因进行了逐一排查,初步锁定为气象台站TD204BD/M001型北斗气象终端的压制性干扰,然后在全省多个气象台站对结论进行了验证,并通过数据分析得到了该气象终端对GNSS信号的干扰特征:一是干扰开始后观测数据TEQC卫星跟踪窗口出现了大量的失锁标记;二是高度角25°以上的载波周跳报告数量的显著增多。研究尝试了几种抗干扰的方法,并采取抗干扰措施,最终解决了干扰问题。
In order to fnd out the abnormal reason of the observation data of the reference station in Qinghai Province, a variety of test methods were adopted at a certain reference station to investigate the causes of the data anomalies one by one, and it was initially locked to the repressive interference of TD204BD/M001 BeiDou meteorological terminal. Then the conclusions were verified at several meteorological stations of Qinghai province, and the characteristics of the brand＇s meteorological terminal＇s interference to GNSS signal interference were obtained through data analysis. Firstly, the observation data of TEQC satellite tracking window appeared a large number of loss-locked markers after the start of the interference; secondly, the reports of angle above 25 degrees carrier cycle clips were signifcant increased. Then several anti-radio interference methods were tried.
作者
赵利江
张生鹏
张永荥
ZHAO Lijiang;ZHANG Shengpeng;ZHANG Yongying(The First Surveying and Mapping Institute of Qinghai,Xining 810000,China)
出处
《地理信息世界》
2018年第5期78-82,共5页
Geomatics World
关键词
气象终端
GNSS
干扰
meteorological terminal
GNSS
signal infuence
