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基于X射线脉冲星导航的模拟调制仿真源研究

周峰 吴光敏 赵宝升 盛立志 宋娟 刘永安 鄢秋荣 邓宁勤 赵建军

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基于X射线脉冲星导航的模拟调制仿真源研究

周峰, 吴光敏, 赵宝升, 盛立志, 宋娟, 刘永安, 鄢秋荣, 邓宁勤, 赵建军

An analog modulated simulation source for X-ray pulsar-based navigation

Zhou Feng, Wu Guang-Min, Zhao Bao-Sheng, Sheng Li-Zhi, Song Juan, Liu Yong-An, Yan Qiu-Rong, Deng Ning-Qin, Zhao Jian-Jun
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  • 为实现X射线脉冲星导航系统在地面的演示验证, 提出并设计了一种高精度X射线脉冲星仿真源. 该仿真源由模拟调制信号发生器和栅控X射线球管组成. 模拟调制信号发生器根据脉冲星标准脉冲轮廓数据和栅控球管特性曲线, 利用直接数字频率合成技术产生模拟调制信号, 加载在X射线球管控制栅极, 从而控制轰击阳极靶的高速电子数目来实现X射线的调制, 产生与脉冲星标准脉冲轮廓高吻合度的X射线光子统计分布. 在X射线脉冲星地面仿真系统中对Crab脉冲星仿真源的性能进行测试, 测试结果为: 采集脉冲轮廓与标准脉冲轮廓时域相关度和频率相关度分别达到0.9774和0.9853, 辐射流量为1. 90 ph·cm-2·s-1, 脉冲辐射流量与总辐射流量之比为76.15%, 脉冲半宽度为1.879 ms. 结果表明: 该仿真源具有符合度高, 成本低, 操作简单灵活, 对X 射线脉冲星导航关键技术的攻关具有重要的意义.
    In this paper a high resolution X-ray simulation source is proposed and designed to verify the navigation based on X-ray pulsar in the simulation experience system. The simulation source consists of an arbitrary signal generator and a grid controlled X-ray tube. According to the grid tube's characteristic curve, the data of the pulsar standard pulse template are converted. Then using the method of direct digital frequency synthesis, the converted data are synthesized to waveforms, called the analog modulated grid voltage. In the grid controlled X-ray tube, the grid voltage changes the number of electrons hitting on the target and controls the X-ray intensity. With an analog modulated pulse profile applied on the tube grid electrode, the tube will emit X-rays which will match photons' statistical distribution and simulate the X-ray pulsar profile extremely well. The properties of Crab pulsar simulation source are tested in X-ray pulsar navigation simulation experience system. The results of the test are as follows: Comparing the tested pulse profile with the standard pulsar profile, we have time correlation coefficient is 0.9774, and frequency correlation coefficient is 0.9853. The X-ray photon flux is 1.90 ph·cm-2·s-1, the pulsed fraction is 76.15%, and the half-width half maximum is 1.879 ms. These results show that the X-ray simulation source has several merits, such as: strong ability to simulate the X-ray, low cost and simple operation. So it is an important means for the improvement of X-ray pulsar navigation.
    • 基金项目: 国家自然科学基金青年科学基金 (批准号: 11103069, 61007017)资助的课题.
    • Funds: Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 11103069, 61007017).
    [1]

    Hewish A, Bell S J, Pilkington J D H, Scott P F, Collins R A 1968 Nature 217 709

    [2]

    Sheikh S I, Pines D J, Ray P S, Wood K S, Lovellette M N, Wolff M T 2004 Proceedings of 14th AAS /AIAA Space Flight Mechanics Conference Maui, HI, February 8-12, 2004, p105

    [3]

    Su Z, Xu L P, Wang T 2011 Acta Phys. Sin. 60 119701 (in Chinese) [苏哲, 许录平, 王婷 2011 物理学报 60 119701]

    [4]

    Sheng L Z, Zhao B S, Sai X F, Hu H J, Chen D 2010 Chinese Patent 201010140837. 8 [2010-04-07]

    [5]

    Hu H J, Zhao B S, Sheng L Z, Yan Q R 2011 Acta Phys. Sin. 60 029701 (in Chinese) [胡慧君, 赵宝升, 盛立志, 鄢秋荣 2011 物理学报 60 029701]

    [6]

    Zheng W, Sun S M, Tang J G 2010 1st China Satellite Navigation Conference Beijing, China, May 18-22, 2010 (in Chinese) [郑伟, 孙守明, 汤国建 2010 第一届中国卫星导航学术年会 北京, 2010 5. 18–22]

    [7]

    Sheng L Z, Zhao B S, Zhou F, Liu Y A, Yan Q R, Sai X F, Wei Y L 2012 Chinese Patent 201210087972. X [2012-03-29]

    [8]

    Hu H J, Zhao B S, Sheng L Z, Sai X F, Yan Q R, Chen B M, Wang P 2012 Acta Phys. Sin. 61 019701 (in Chinese) [胡慧君, 赵宝升, 盛立志, 赛小锋, 鄢秋荣, 陈宝梅, 王朋 2012 物理学报 61 019701]

    [9]

    Tanaka M, Ikeda H, Ikeda M, Inaba S 1992 IEEE Trans Nuclear Science 39 1321

    [10]

    Wang P, Zhao B S, Sheng L Z, Hu H J, Yan Q R 2012 Acta Phys. Sin. 61 209702 (in Chinese) [王朋, 赵宝升, 盛立志, 胡慧君, 鄢秋荣 2012 物理学报 61 209702]

    [11]

    Yang Y G 2008 Chin. J. Space Sci. 28 330 (in Chinese) [杨廷高 2008 空间科学学报 28 330]

    [12]

    Sheikh S I, Pines D J 2006 J. Guid. Contr. Dyn. 29 49

    [13]

    Xie Z H, Xu L P, Ni G R 2008 Acta Phys. Sin. 57 6683 (in Chinese) [谢振华, 许录平, 倪广仁 2008 物理学报 57 6683]

    [14]

    Sheikh S I 2005 Ph. D. Dissertation (Maryland USA: University of Maryland)

  • [1]

    Hewish A, Bell S J, Pilkington J D H, Scott P F, Collins R A 1968 Nature 217 709

    [2]

    Sheikh S I, Pines D J, Ray P S, Wood K S, Lovellette M N, Wolff M T 2004 Proceedings of 14th AAS /AIAA Space Flight Mechanics Conference Maui, HI, February 8-12, 2004, p105

    [3]

    Su Z, Xu L P, Wang T 2011 Acta Phys. Sin. 60 119701 (in Chinese) [苏哲, 许录平, 王婷 2011 物理学报 60 119701]

    [4]

    Sheng L Z, Zhao B S, Sai X F, Hu H J, Chen D 2010 Chinese Patent 201010140837. 8 [2010-04-07]

    [5]

    Hu H J, Zhao B S, Sheng L Z, Yan Q R 2011 Acta Phys. Sin. 60 029701 (in Chinese) [胡慧君, 赵宝升, 盛立志, 鄢秋荣 2011 物理学报 60 029701]

    [6]

    Zheng W, Sun S M, Tang J G 2010 1st China Satellite Navigation Conference Beijing, China, May 18-22, 2010 (in Chinese) [郑伟, 孙守明, 汤国建 2010 第一届中国卫星导航学术年会 北京, 2010 5. 18–22]

    [7]

    Sheng L Z, Zhao B S, Zhou F, Liu Y A, Yan Q R, Sai X F, Wei Y L 2012 Chinese Patent 201210087972. X [2012-03-29]

    [8]

    Hu H J, Zhao B S, Sheng L Z, Sai X F, Yan Q R, Chen B M, Wang P 2012 Acta Phys. Sin. 61 019701 (in Chinese) [胡慧君, 赵宝升, 盛立志, 赛小锋, 鄢秋荣, 陈宝梅, 王朋 2012 物理学报 61 019701]

    [9]

    Tanaka M, Ikeda H, Ikeda M, Inaba S 1992 IEEE Trans Nuclear Science 39 1321

    [10]

    Wang P, Zhao B S, Sheng L Z, Hu H J, Yan Q R 2012 Acta Phys. Sin. 61 209702 (in Chinese) [王朋, 赵宝升, 盛立志, 胡慧君, 鄢秋荣 2012 物理学报 61 209702]

    [11]

    Yang Y G 2008 Chin. J. Space Sci. 28 330 (in Chinese) [杨廷高 2008 空间科学学报 28 330]

    [12]

    Sheikh S I, Pines D J 2006 J. Guid. Contr. Dyn. 29 49

    [13]

    Xie Z H, Xu L P, Ni G R 2008 Acta Phys. Sin. 57 6683 (in Chinese) [谢振华, 许录平, 倪广仁 2008 物理学报 57 6683]

    [14]

    Sheikh S I 2005 Ph. D. Dissertation (Maryland USA: University of Maryland)

计量
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  • PDF下载量:  658
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-12-17
  • 修回日期:  2013-01-21
  • 刊出日期:  2013-06-05

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