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

Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (4): 674-677.doi: 10.3969/j.issn.1001-506X.2010.04.02

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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

Abstract

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

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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Blind Doppler parameters estimation of satellite communication signals

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