卫星通信信号的多普勒频率参数盲估计

doi:10.3969/j.issn.1001-506X.2010.04.02

系统工程与电子技术 ›› 2010, Vol. 32 ›› Issue (4): 674-677.doi: 10.3969/j.issn.1001-506X.2010.04.02

卫星通信信号的多普勒频率参数盲估计

彭耿1,2，黄知涛2，姜文利2，周一宇2

（1．海军装备研究院信息工程技术研究所，北京 102249；2．国防科学技术大学电子科学与工程学院，湖南长沙 410073）

出版日期:2010-04-23 发布日期:2010-01-03

Blind Doppler parameters estimation of satellite communication signals

PENG Geng1,2, HUANG Zhi-tao2, JIANG Wen-li2, ZHOU Yi-yu2

(1. Inst. of Information Engineering and Technology, Naval Academy of Armament, Beijing 102249, China;
2. School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)

Online:2010-04-23 Published:2010-01-03

摘要/Abstract

摘要：

用泰勒级数的展开形式表示高动态的多普勒频率参数，推导了信号非线性变换后相邻数据样本的相位差与多普勒频率、一次变化率、二次变化率等多普勒频率参数的关系，由此建立了方程组并通过解方程实现无需任何先验信息的多普勒频率参数盲估计。仿真实验验证了该方法对M进制相移键控(M-ary phase shift keying, MPSK)、M进制正交幅度调制(M-ary quadrature amplitude modulation, MQAM)等常用卫星通信信号的可行性和有效性。

关键词:

信息处理技术, 盲估计, 多普勒频率参数, 卫星通信信号

Abstract:

Firstly, high dynamic Doppler parameters are expressed with Taylor series. Then, the relationship of Doppler frequency shift, the first order derivative and the second order derivative with the phase difference of adjacent data samples is deduced after signal nonlinear transform. Finally, an equation set is constructed and Doppler parameters are blindly estimated by solving the equations without any prior knowledge. Simulation results validate the method’s feasibility and availability for commonly used satellite communication signals, such as M-ary phase shift keying (MPSK), M-ary quadrature amplitude modulation (MQAM) and so on.

Key words: information processing technology, blind estimation, Doppler parameter, satellite communication signal

彭耿, 黄知涛, 姜文利, 周一宇. 卫星通信信号的多普勒频率参数盲估计[J]. 系统工程与电子技术, 2010, 32(4): 674-677.

PENG Geng, HUANG Zhi-tao, JIANG Wen-li, ZHOU Yi-yu. Blind Doppler parameters estimation of satellite communication signals [J]. Systems Engineering and Electronics, 2010, 32(4): 674-677.

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卫星通信信号的多普勒频率参数盲估计

Blind Doppler parameters estimation of satellite communication signals

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