通信与信息技术Issue(4)：115-118,4.
一种基于差分极性判别的AIS船载信号解码技术
An AIS shipboard signal decoding technique based on differential polarity discrimination
张灵珠 1程瑞 1聂绪飞 2刘继成3
作者信息
- 1. 成都中星世通电子科技有限公司,四川成都 610000
- 2. 西双版纳傣族自治州无线电监测站,云南西双版纳 666100
- 3. 文山州无线电监测中心,云南文山 663000
- 折叠
摘要
Abstract
Based on the signal format and spectrum characteristics of Automatic Identification System(AIS),this article presents a method for correctly demodulating AIS shipborne signals and obtaining the content of AIS messages.By using pulse detection to obtain AIS signals,AIS can be accurately demodulated through phase difference and frequency polarity discrimination.Further based on the signal structure,by searching for start and end markers,and then matching the message ID,AIS message content was successfully ob-tained.Through simulation analysis and platform testing,the algorithm and design scheme used has been validated,indicating that this method can accurately decode AIS shipborne signals.关键词
船舶自动识别系统/差分极性判别/GMSK解调/译码Key words
Automatic Identification System/Differential polarity discrimination/GMSK demodulation/Decoding分类
信息技术与安全科学引用本文复制引用
张灵珠,程瑞,聂绪飞,刘继成..一种基于差分极性判别的AIS船载信号解码技术[J].通信与信息技术,2024,(4):115-118,4.
