摘要
在GMR-1卫星移动通信系统中,同步系统占有举足轻重的地位。GMR-1卫星移动通信系统是利用dual-chirp信号实现初始捕获的,但在现有的联合估计算法中,为简化实现复杂度,牺牲了估计精度。文章利用dual-chirp信号的性质,结合频域匹配滤波器提出了一种高精度的频率估计算法,同时实现复杂度也不高。
The synchronization system plays an important role in GMR-1 mobile satellite communication system. GMR- 1 satellite mobile communication system realize the initial capture using dual- chirp signal, but this type of joint estimation sacrifices the accuracy of the estimation in exchange for reduced computational complexity. In this paper, by using the properties of dual- chirp signal, combined with frequency domain matched filter, a high precision of frequency estimation algorithm is proposed,and not complex.
出处
《信息通信》
2016年第1期217-219,共3页
Information & Communications
基金
LTE-Advanced MIMO矢量分析仪
项目编号:2015ZX03001010-003
TD-LTE-Advanced大容量MIMO技术应用与验证
项目编号:2015ZX03001033-002
