国家教育部博士点基金(20130203120004)

作品数：5被引量：8H指数：2
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A block zero-padding method based on DCFT for L1 parameter estimations in weak signal and high dynamic environments被引量：1
《Frontiers of Information Technology & Electronic Engineering》2015年第9期796-804,共9页Chao WU Lu-ping XU Hua ZHANG Wen-bo ZHAO 
supported by the National Natural Science Foundation of China(Nos.61172138 and 61401340);the Natural Science Basic Research Plan in Shaanxi Province of China(No.2013JQ8040);the Research Fund for the Doctoral Program of Higher Education of China(No.20130203120004);the Open Research Fund of the Academy of Satellite Application(No.2014_CXJJ-DH_12);the Xi’an Science and Technology Plan(No.CXY1350(4));the Fundamental Research Funds for the Central Universities(Nos.201413B,201412B,and JB141303);the Open Fund of Key Laboratory of Precision Navigation and Timing Technology,National Time Service Center,CAS(Nos.2014PNTT01,2014PNTT07,and 2014PNTT08)
Weak L1 signal acquisition in a high dynamic environment primarily faces a challenge： the integration peak is neg- atively influenced by the possible bit sign reversal every 20 ms and the frequency error. The block a...
关键词：Threshold detection Discrete chirp-Fourier transform Block zero-padding High dynamic Weak L1 signal acquisition 
X-ray communication based simultaneous communication and ranging被引量：4
《Chinese Physics B》2015年第9期289-298,共10页宋诗斌 许录平 张华 高娜 
Project supported by the National Natural Science Foundation of China(Grant Nos.61172138 and 61401340);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20130203120004);the Fundamental Research Funds for the Central Universities,China(Grant Nos.201413B,201412B,and JB141303)
To improve the link efficiency and decrease the payloads in space explorations, a novel simultaneous communication and ranging method based on x-ray communication（XCOM） is proposed in this paper. A delicate signal s...
关键词：simultaneous communication and ranging signal design x-ray communication bit error rate 
Improved autonomous star identification algorithm
《Chinese Physics B》2015年第6期321-327,共7页罗丽燕 许录平 张华 孙景荣 
Project supported by the National Natural Science Foundation of China(Grant Nos.61172138 and 61401340);the Open Research Fund of the Academy of Satellite Application,China(Grant No.2014 CXJJ-DH 12);the Fundamental Research Funds for the Central Universities,China(Grant Nos.JB141303 and201413B);the Natural Science Basic Research Plan in Shaanxi Province,China(Grant No.2013JQ8040);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20130203120004);the Xi’an Science and Technology Plan,China(Grant.No CXY1350(4))
The log-polar transform （LPT） is introduced into the star identification because of its rotation invariance. An improved autonomous star identification algorithm is proposed in this paper to avoid the circular shift...
关键词：log-polar transform star identification star pattern star sensor 
A novel x-ray circularly polarized ranging method
《Chinese Physics B》2015年第5期503-513,共11页宋诗斌 许录平 张华 高娜 申洋赫 
supported by the National Natural Science Foundation of China(Grant Nos.61172138 and 61401340);the Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2013JQ8040);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20130203120004);the Open Research Fund of the Academy of Satellite Application,China(Grant No.2014 CXJJ-DH 12);the Xi’an Science and Technology Plan,China(Grant No.CXY1350(4));the Fundamental Research Funds for the Central Universities,China(Grant Nos.201413B,201412B,and JB141303);the Open Fund of Key Laboratory of Precision Navigation and Timing Technology,National Time Service Center,Chinese Academy of Sciences(Grant Nos.2014PNTT01,2014PNTT07,and 2014PNTT08)
Range measurement has found multiple applications in deep space missions. With more and further deep space ex- ploration activities happening now and in the future, the requirement for range measurement has risen. In ...
关键词：x-ray ranging circular polarization modulation deep space regenerative ranging 
A new maximum-likelihood phase estimation method for X-ray pulsar signals被引量：3
《Journal of Zhejiang University-Science C(Computers and Electronics)》2014年第6期458-469,共12页Hua ZHANG Lu-ping XU Yang-he SHEN Rong JIAO Jing-rong SUN 
Project supported by the National Natural Science Foundation of China(No.61172138);the Fundamental Research Funds for the Central Universities(Nos.K5051302015 and K5051302040);the Natural Science Basic Research Plan in Shaanxi Province of China(No.2013JQ8040);the Research Fund for the Doctoral Program of Higher Education of China(No.20130203120004)
X-ray pulsar navigation(XPNAV) is an attractive method for autonomous navigation of deep space in the future. Currently, techniques for estimating the phase of X-ray pulsar radiation involve the maximization of the ge...
关键词：X-ray pulsar Poisson model Phase estimation Maximum likelihood 
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