| 摘要: |
| 针对星载AIS(船舶自动识别系统)接收系统覆盖范围广、运动速度快等特点，提出了三种实
现信号有效接收的总体方案。采用盲分离阵列信号处理方法、非线性测频和非相干解调方法
解决了星载AIS接收系统中面临的信号碰撞、多普勒频移信号解调等关键技术问题，仿真和
外场实验验证了方案的有效性和可行性。 |
| 关键词: 星载AIS 接收系统 信息碰撞 多普勒频移 盲源分离 |
| DOI： |
|
| 基金项目: |
|
| Satellite-based AIS Receiver System Design and Related Key Techniques |
| PAN Bao-feng,LIANG Xian-ming |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China) |
| Abstract: |
| According to the characters of the space-based AIS(Automatic Identification Syst
em) receiver with wide coverage and fast moving speed，three system design schem
es are proposed to realize the efficient receiving of signal. The blind source s
eparation array signal processing method, nonlinear frequency measuring and non-
coheren
ce demodulation method are used to solve the problems of signal overlapping and
the demodulation of Doppler frequency shift signal. Simulations and outfield exp
eriment are presented to verify the validity and feasibility of the proposed sch
eme. |
| Key words: satellite-based AIS receiver system message collision Doppler frequency shift bl
ind source separation |
《电讯技术》编辑部 