發(fā)布時(shí)間：2018-06-08 01:47

  本文選題：單站 + 單頻��； 參考：《武漢大學(xué)學(xué)報(bào)(信息科學(xué)版)》2017年10期

【摘要】：提出了一種基于歷元間單差觀測(cè)值的單站單頻周跳探測(cè)與修復(fù)方法。通過(guò)假定前一歷元為基準(zhǔn)站,當(dāng)前歷元為流動(dòng)站,采用相對(duì)定位處理模式獲取當(dāng)前歷元觀測(cè)值的驗(yàn)后單位權(quán)中誤差,并基于抗差最小二乘獲取每顆衛(wèi)星的觀測(cè)值殘差,對(duì)單站單頻數(shù)據(jù)進(jìn)行周跳探測(cè)與修復(fù)。通過(guò)對(duì)實(shí)測(cè)數(shù)據(jù)的驗(yàn)證分析表明,按照本文方法可以100%探測(cè)周跳發(fā)生的歷元。并且,當(dāng)至少4顆衛(wèi)星未發(fā)生周跳時(shí),如發(fā)生異常衛(wèi)星數(shù)小于可視衛(wèi)星數(shù)的30%,則在95%以上的情況下可以有效確定異常衛(wèi)星;當(dāng)異常衛(wèi)星過(guò)多時(shí),本文方法確定異常衛(wèi)星的成功率會(huì)有所下降。但是,對(duì)于探測(cè)出發(fā)生周跳的異常衛(wèi)星,本文方法均可100%對(duì)其周跳進(jìn)行修復(fù)。
[Abstract]:A single frequency cycle slip detection and repair method based on the single difference between epochs is proposed. Based on the assumption that the previous epoch is the reference station and the current epoch is the mobile station, the relative positioning processing mode is used to obtain the posteriori unit weight error of the current epoch observation value, and the residual value of each satellite is obtained based on the robust least square method. Cycle slip detection and repair for single station single frequency data are carried out. The verification and analysis of the measured data show that the epoch of cycle slip can be detected 100% according to the method in this paper. Moreover, when at least four satellites do not have a cycle jump, if the number of abnormal satellites is less than 30 percent of the number of visible satellites, the abnormal satellites can be effectively determined in more than 95 percent of the cases; when the number of abnormal satellites is excessive, The method in this paper determines that the success rate of abnormal satellites will decrease. However, the method can be used to repair 100% of the abnormal satellites which detect the cycle slip.
【作者單位】： 武漢大學(xué)衛(wèi)星導(dǎo)航定位技術(shù)研究中心;千尋位置網(wǎng)絡(luò)有限公司;
【基金】：國(guó)家自然科學(xué)基金(41304028) 國(guó)家863計(jì)劃(2014AA123101) 三峽工程魚類資源保護(hù)重點(diǎn)實(shí)驗(yàn)室基金(SXSN/4008) 中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金(2042016kf0184,2042016kf0061)~~
【分類號(hào)】：P228

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本文編號(hào)：1993828