GMSK iterative carrier recovery for AIS burst-mode  

作　　者：Lu Xiwen Luo Yijun Li Jie 

机构地区：[1]School of Electronic Information,Wuhan University [2]Xi'an Institute of Space Radio Technology

出　　处：《The Journal of China Universities of Posts and Telecommunications》2017年第3期1-6,共6页中国邮电高校学报（英文版）

摘　　要：In this paper, an iterative carrier recovery algorithm of Gaussian filtered minimum shift keying （GMSK） in burst-mode was designed. The data utilization rate and precision of the traditional demodulation method for recovering carrier signal in burst data packet with limited-length is poor. In order to solve this problem, this paper proposed an iterative carrier recovery algorithm. This algorithm can improve the estimated precision of carrier recovery and data utilization rate of burst data packet in a large extent by performing multiple forward and backward iterations. And the algorithm can be implemented in Simulink environment. As the communication mode of automatic identification system （AIS） is abrupt, the algorithm is especially suitable for satellite-based AIS.In this paper, an iterative carrier recovery algorithm of Gaussian filtered minimum shift keying （GMSK） in burst-mode was designed. The data utilization rate and precision of the traditional demodulation method for recovering carrier signal in burst data packet with limited-length is poor. In order to solve this problem, this paper proposed an iterative carrier recovery algorithm. This algorithm can improve the estimated precision of carrier recovery and data utilization rate of burst data packet in a large extent by performing multiple forward and backward iterations. And the algorithm can be implemented in Simulink environment. As the communication mode of automatic identification system （AIS） is abrupt, the algorithm is especially suitable for satellite-based AIS.

关 键 词：kGMSK ITERATION cartier recovery AIS burst signal 

分 类 号：TN911.7[电子电信—通信与信息系统]