A novel Doppler frequency measurement method based on the closed-loop signal correlation for deep space exploration
A novel Doppler frequency measurement method based on the closed-loop signal correlation for deep space exploration
复制标题
一种基于闭环信号相关的深空探测多普勒频率测量方法
DOI:
10.1088/1674-4527/21/9/220
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发表时间:
2021-11
期刊:
影响因子:
--
通讯作者:
Xin Zheng
中科院分区:
文献类型:
--
作者:
Tao Deng;Maoli Ma;Qingbao He;Qinghui LIU;Yajun Wu;Xin Zheng
In deep space exploration, it is necessary to improve the accuracy of frequency measurement to meet the requirements of precise orbit determination and various scientific studies. A phase detector is one of the key modules that restricts the tracking performance of phase-locked loop (PLL). Based on the phase relationship between adjacent signals in the time domain, a novel phase detector is presented to replace the arctangent phase detector. The new PLL, which is a closed loop signal correlation algorithm, shows good performance in tracking signals with high precision and the tracking accuracy of frequency of 1 second integration is close to Cramer-Rao lower bound (CRLB) when setting proper parameters. Actual data processing results further illustrate the excellent performance of the novel PLL.
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通讯作者:
D. Duev;S. Pogrebenko;G. Cimò;G. M. Calv'es;Tatiana M. Bocanegra Baham'on;L. Gurvits;M. Kettenis;Joseph W. Kania;V. Tudose;P. Rosenblatt;J. Marty;V. Lainey;P. Vicente;J. Quick;M. Nickola;A. Neidhardt;G. Kronschnabl;C. Plotz;R. Haas;M. Lindqvist;A. Orlati;A. Ipatov;M. Kharinov;A. Mikhailov;J. Lovell;J. McCallum;J. Stevens;S. Gulyaev;T. Natush;S. Weston;Weihua Wang;B. Xia;Wenjun Yang;L. Hao;J. Kallunki;O. Witasse
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作者:
D. Khablov
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