奈伏泰斯(NAVTAX)系统及其信号分析综述  

Survey of Signal Analysis and System Feature in NAVTEX Receiver

作　　者：张杰 袁冰清 ZHANG Jie;YUAN Bingqing(The State Radio Monitoring Centre Shanghai Station,Shanghai 201419,China)

机构地区：[1]国家无线电监测中心上海监测站,上海201419

出　　处：《数字通信世界》2021年第9期59-61,共3页Digital Communication World

摘　　要：奈伏泰斯(NAVTAX)系统是一种在航海业广泛运用的窄带直接印字电报系统,从NAVTEX系统特征、工作特性、报文格式等方面进行简要阐述,再针对应用于NAVTAX接收系统的正交延时、STFT数字解调方法进行原理分析。NAVTAX is a narrow band direct printing telegraph system used widely in nautical industry.NAVTAX system features,working characteristics,message format and other aspects are briefly described in this paper.And this paper analyzes the theory of delay-multiple demodulation and the methods of STFT digital demodulation applied in NAVTAX receiving system.

关 键 词：船舶 短波 无线电监测 数字解调 

分 类 号：TN98[电子电信—信息与通信工程]