部分模糊度固定的多基線解算方法
發(fā)布時(shí)間:2018-07-11 17:07
本文選題:等價(jià)模糊度 + 等價(jià)觀測(cè)方程; 參考:《大地測(cè)量與地球動(dòng)力學(xué)》2017年12期
【摘要】:采用非差觀測(cè)值構(gòu)建誤差方程,通過(guò)等價(jià)變換消除衛(wèi)星鐘差參數(shù)和接收機(jī)鐘差參數(shù),建立多個(gè)測(cè)站的聯(lián)合等價(jià)雙差觀測(cè)方程。針對(duì)聯(lián)合方程等價(jià)模糊度個(gè)數(shù)較多、相關(guān)性較強(qiáng)的特點(diǎn),本文提出一種新的部分模糊度固定(PAR)方法。該方法將等價(jià)模糊度按照方差大小升序排列,通過(guò)循環(huán)剔除最大方差模糊度并進(jìn)行Ratio檢驗(yàn),最終實(shí)現(xiàn)部分模糊度的固定。實(shí)例計(jì)算表明,相比完全模糊度固定(FAR)方法,PAR方法不僅具有更高的模糊度固定率和成功率,且提高了多基線精密定位的可用性,其坐標(biāo)解算精度與FAR具有較好的一致性。
[Abstract]:In this paper, a new partial ambiguity fixed (PAR) method is proposed in this paper. In this paper, a new partial fuzzy degree fixed (PAR) method is proposed. The equivalence blur is arranged in ascending order according to the size of variance, and the maximum variance fuzziness is eliminated by cycle and Ratio test is carried out, and the partial ambiguity is fixed. The example calculation shows that the PAR method not only has higher fuzzy fixed rate and success rate, but also improves the precision positioning of multiple baselines compared with the complete fuzzy degree fixed (FAR) method. The accuracy of its coordinate solution is in good agreement with that of FAR.
【作者單位】: 山東大學(xué)空間科學(xué)研究院;國(guó)家測(cè)繪地理信息局第三大地測(cè)量隊(duì);
【分類號(hào)】:P228.4
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本文編號(hào):2115979
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