電離層高階項改正對我國陸態(tài)網(wǎng)測站坐標(biāo)的影響
發(fā)布時間:2018-03-09 07:41
本文選題:電離層高階項延遲 切入點:地磁模型 出處:《大地測量與地球動力學(xué)》2016年08期 論文類型:期刊論文
【摘要】:通過不同的方案設(shè)計對中國陸態(tài)網(wǎng)測站進(jìn)行解算,研究電離層高階項延遲對測站坐標(biāo)和接收機鐘差的影響,并分析在不同地磁模型下的影響差異。結(jié)果表明,在太陽活動較為活躍時,電離層高階項延遲對陸態(tài)網(wǎng)測站垂向坐標(biāo)的影響能達(dá)到1.2cm,對接收機鐘差的影響接近4.4mm;不同地磁模型下電離層高階項延遲的影響很小。還分析了緯度、基線方向與長度對電離層高階項延遲的影響。
[Abstract]:The effect of ionospheric higher-order term delay on the station coordinates and receiver clock difference is studied through different scheme design. The results show that the effect of ionospheric high-order term delay on the station coordinates and receiver clock difference under different geomagnetic models is analyzed. When the solar activity is active, the influence of ionospheric higher-order term delay on the vertical coordinates of land-based network stations can reach 1.2 cm, and the influence on receiver clock error is nearly 4.4 mm, and the effect of ionospheric higher-order term delay on different geomagnetic models is very small. The latitude is also analyzed. The effect of baseline direction and length on ionospheric higher-order delay.
【作者單位】: 山東科技大學(xué)測繪科學(xué)與工程學(xué)院;中國測繪科學(xué)研究院;遼寧工程技術(shù)大學(xué)測繪與地理科學(xué)學(xué)院;
【基金】:國家自然科學(xué)基金(41374014,41404034)~~
【分類號】:P228.4
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本文編號:1587588
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