本文選題：GPS　切入點(diǎn)：BDS　出處：《宇航計(jì)測(cè)技術(shù)》2016年01期 　論文類型：期刊論文

【摘要】：針對(duì)電離層折射誤差較大的特點(diǎn),分別對(duì)GPS(Global Positioning System)和BDS(Bei Dou Navigation Satellite System)的單一頻率的電離層折射誤差進(jìn)行了分析,并將不同頻率進(jìn)行線性組合,計(jì)算出組合后的電離層折射誤差。此方法修正了雙頻一階項(xiàng)、三頻一階項(xiàng)和三頻二階項(xiàng)電離層折射誤差。由于電離層延遲修正的同時(shí)會(huì)放大觀測(cè)噪聲,為此分析比較了不同頻率組合修正后的觀測(cè)噪聲,為最佳頻率組合的選取提供了理論方法。
[Abstract]:Aiming at the characteristics of large ionospheric refraction error, the ionospheric refraction errors of GPS(Global Positioning system and BDS(Bei Dou Navigation Satellite system are analyzed respectively, and the different frequencies are linearly combined. The combined ionospheric refraction error is calculated. This method corrects the ionospheric refraction error of the first order term, the first order term of the third frequency term and the second term of the third frequency term. As the ionospheric delay is corrected, the observed noise is amplified. This paper analyzes and compares the observed noise of different frequency combinations, which provides a theoretical method for the selection of optimal frequency combinations.
【作者單位】： 中國(guó)科學(xué)院國(guó)家空間科學(xué)中心;中國(guó)科學(xué)院大學(xué);
【分類號(hào)】：P228.4

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本文編號(hào)：1569964