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SCIENTIA SINICA Informationis, Volume 49 , Issue 6 : 775-782(2019) https://doi.org/10.1360/N112017-00120

Tracking technology of Mars spacecraft for large radio telescope

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  • ReceivedMay 27, 2017
  • AcceptedJan 27, 2018
  • PublishedJun 6, 2019

Abstract


Funded by

国家自然科学基金(11473059,11773060)

天文专项(高精度测量,控制系统研究)

上海市导航与定位重点实验室(3912DZ227330001)


References

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  • Figure 1

    (Color online) (a) Measurement result in the $x$-axis direction of the inclinometer caused by thermal deformation of antenna body; (b) observation elevation andcorrection value of atmospheric refraction; (c) pointing error caused by light time; (d) relation of receiving power and pointing offset of Tianma telescope

  • Figure 2

    (Color online) (a) Tracking velocity at azimuth and elevation direction; (b)distance between MRO and the earth and its fitting residuals; (c)differences of azimuth and elevation between considering the light timeeffect or not;protectłinebreak (d) angular distance between considering the light timeeffect or not

  • Figure 3

    (Color online) Spectra of Mars in-orbit spacecraft signals received by usingTianMa telescope

  • Figure 4

    (Color online) Power reduction of the received signal with elevation offset (blackspots), theoretical curve (red line) when $\alpha~=~1.17$

  • Figure 5

    Spectra of MEX signals received by using (a) KunMing (KM), (b)TianMa (TM) telescopes; (c) the delay rate on the KM-TM baseline; (d) thecorrelation phase and the fitting residuals on the KM-TM baseline