【摘要】：GNSS時間傳遞技術(shù)是衛(wèi)星導(dǎo)航技術(shù)在時間頻率領(lǐng)域的重要應(yīng)用,也是時間傳遞的主要技術(shù)手段之一。隨著我國北斗衛(wèi)星導(dǎo)航系統(tǒng)的不斷建設(shè),北斗系統(tǒng)在時間頻率領(lǐng)域應(yīng)用的研究也逐步深入。主要基于北斗衛(wèi)星導(dǎo)航系統(tǒng)特有的IGSO、MEO、GEO衛(wèi)星星座,開展了基于北斗共視和載波相位時間傳遞算法研究,研制了北斗時間傳遞軟件包(PPTSlo),并對其時間傳遞鏈路精度、穩(wěn)定度進(jìn)行了定性、定量分析,實(shí)驗(yàn)結(jié)果表明北斗共視時間傳遞精度優(yōu)于6 ns,北斗載波相位時間傳遞精度能達(dá)到亞納秒-納秒精度。
[Abstract]:GNSS time transfer technology is an important application of satellite navigation technology in the field of time and frequency, and it is also one of the main technical means of time transmission. With the continuous construction of Beidou satellite navigation system in China, the application of Beidou system in the field of time and frequency has gradually deepened. Based on the special IGSO,MEO,GEO satellite constellation of Beidou satellite navigation system, the research on Beidou common vision and carrier phase time transfer algorithm is carried out. The Beidou time transfer software package (PPTSlo), is developed and its time transmission link accuracy is analyzed. The stability is qualitatively and quantitatively analyzed. The experimental results show that the Beidou common-view time transfer accuracy is better than that of 6 ns, beidou carrier phase time transfer accuracy, which can reach sub-nanosecond to nanosecond accuracy.
【作者單位】： 中國科學(xué)院國家授時中心;中國科學(xué)院大學(xué);
【基金】：國家重點(diǎn)研發(fā)計劃(2016YFB0501804) 國家自然科學(xué)基金(41504006,41674034) 中國科學(xué)院百人計劃和前沿科技重點(diǎn)研發(fā)計劃(QYZDB-SSW-DQC028);中國科學(xué)院“西部之光”聯(lián)合學(xué)者(Y507YR1203)項(xiàng)目資助
【分類號】：P228.4

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