本文選題：北斗三頻　切入點：偽距相位組合法　出處：《大地測量與地球動力學(xué)》2017年10期

【摘要】：提出一種基于單差模型的電離層殘差輔助偽距相位組合周跳探測方法�；诒倍啡l實測數(shù)據(jù),以波長、電離層延遲系數(shù)與噪聲為約束條件,優(yōu)化選取3個線性無關(guān)的超寬巷(EWL)、寬巷(WL)組合(0,-1,1)、(1,4,-5)、(4,-2,-3),并利用偽距相位組合法進行周跳的探測與修復(fù)。實驗結(jié)果表明,這3個組合甚至可以實時探測出原始頻點上1周的小周跳。針對三頻偽距相位組合周跳探測法可能出現(xiàn)的誤探情況,提出利用電離層殘差法輔助三頻偽距相位組合周跳探測的方法,即首先利用原始觀測量求出歷元間電離層殘差,再將相鄰歷元間所求的歷元間電離層殘差二次作差。實驗表明,該方法可以實時準確地探測與修復(fù)不同基線下單差的各類大小周跳。
[Abstract]:A method of ionospheric residual aided pseudo-range phase combined cycle slip detection based on single difference model is proposed. Based on the measured data of Beidou three frequency, the wavelength, ionospheric delay coefficient and noise are taken as constraints. Three linear independent super-wide roadways, EWL and WL, were optimized for detecting and repairing cycle slips by using pseudo-range phase combination method. These three combinations can even detect the small cycle slip of one week on the original frequency point in real time. In this paper, the ionospheric residuals method is proposed to assist the tri-frequency pseudo-range phase combined cycle slip detection. Firstly, the ionospheric residuals of each epoch are calculated by using the original observations, and then the ionospheric residuals between the adjacent epochs are used in the second order. The experimental results show that, This method can accurately detect and repair all kinds of cycle slips with different baselines.
【作者單位】： 信息工程大學(xué)地理空間信息學(xué)院;78125部隊;
【基金】：國家自然科學(xué)基金(41674016,41274016)~~
【分類號】：P228.4

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本文編號：1668432