基于同波束VLBI差分相時(shí)延的“玉兔”月球車動(dòng)作監(jiān)視分析
[Abstract]:Chang'e-3 successfully landed in Hongwan landing area on December 14, 2013. In this paper, the same beam VLBI technique is used to observe the signals transmitted by the lander and the rover at the same time, and the differential phase delay (Differential Phase Delay), with integer ambiguity is used to solve the various motions of the lunar rover during the separation of the lander and the Lunar rover, and the mutual racquet between the two rovers. At the same time, the difference phase delay caused by the motion of walking, turning, sloshing and elevation change of the rover is studied and analyzed. It is found that the sensitivity of the same beam VLBI differential phase delay monitoring lunar rover movement is between 50 and 100 mm. Later, the variation trend of differential phase delay is used for relative positioning. The same beam VLBI technology will also play an important role in the follow-up lunar exploration phase III, Mars exploration, Venus exploration and other dual targets, multi-target exploration will also play an important role.
【作者單位】: 中國(guó)科學(xué)院上海天文臺(tái);中國(guó)科學(xué)院大學(xué);
【基金】:國(guó)家自然科學(xué)基金(批準(zhǔn)號(hào):11273049) 國(guó)家高技術(shù)研究發(fā)展計(jì)劃項(xiàng)目(編號(hào):2012AA121203) 上海市導(dǎo)航與定位重點(diǎn)實(shí)驗(yàn)室(編號(hào):3912D Z227330001) 中國(guó)科學(xué)院行星科學(xué)重點(diǎn)實(shí)驗(yàn)室(編號(hào):2013DP173302)
【分類號(hào)】:P184.5;V476.3
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