本文選題：北斗 + 三頻��； 參考：《東南大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年01期

【摘要】：針對(duì)北斗三頻長(zhǎng)距離參考站間寬巷(含超寬巷)模糊度解算中存在的問題,分析了影響寬巷組合(WLC)法、載波偽距組合的無幾何無電離層(GIF)法及分步無幾何(TCAR)法的主要因素及各自的局限性.在此基礎(chǔ)上,基于參考站間基線已知的特性,提出了一種分步解算的無電離層(SIF)方法.首先采用載波偽距組合求解(0,-1,1)超寬巷模糊度,利用模糊度已固定的(0,-1,1)載波觀測(cè)值與第2個(gè)寬巷/超寬巷觀測(cè)值組成載波無電離層組合,同時(shí)分析了殘余幾何項(xiàng)誤差對(duì)模糊度解算的影響.最后采用了一組長(zhǎng)度為265 km的實(shí)測(cè)北斗三頻基線數(shù)據(jù)進(jìn)行了實(shí)驗(yàn)驗(yàn)證.實(shí)驗(yàn)結(jié)果表明,所提SIF方法能夠有效消除長(zhǎng)基線情況下電離層延遲的影響,同時(shí)受觀測(cè)值噪聲的影響較小.
[Abstract]:In view of the existing problems in the ambiguity resolution of wide roadway (including ultra wide roadway) between Beidou three frequency long distance reference stations, this paper analyzes the influence of WLC method on wide roadway combination. The main factors and their respective limitations of the carrier pseudo-range combination without geometric ionosphere-free GIFs and step by step geometric free TCAR methods are discussed. Based on the known characteristics of the baseline between reference stations, a step by step ionospheric sift (sif) method is proposed. Firstly, the carrier pseudo-range combination is used to solve the ambiguity of the ultra-wide lane, and the carrier observations with the second wide lane and the second wide lane are used to form the carrier ionospheric combination. At the same time, the influence of residual geometric error on ambiguity resolution is analyzed. Finally, a group of measured Beidou three-frequency baseline data with a length of 265 km is used for experimental verification. The experimental results show that the proposed SIF method can effectively eliminate the influence of ionospheric delay at long baseline and is less affected by the observed noise.
【作者單位】： 東南大學(xué)交通學(xué)院;東南大學(xué)儀器科學(xué)與工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(41574026) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(KYLX15_0159) 東南大學(xué)優(yōu)秀博士學(xué)位論文培育基金資助項(xiàng)目(YBJJ1635)
【分類號(hào)】：P228

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