本文選題：GPS　切入點：網(wǎng)絡(luò)RTK　出處：《中國礦業(yè)大學(xué)學(xué)報》2017年03期

【摘要】：提出了一種長距離全球定位系統(tǒng)(GPS)網(wǎng)絡(luò)實時動態(tài)定位(RTK)參考站間低高度角衛(wèi)星整周模糊度解算方法.利用L1,L2頻率的觀測值及嚴(yán)格的模糊度固定標(biāo)準(zhǔn)解算寬巷整周模糊度,將固定的寬巷整周模糊度與雙頻載波相位整周模糊度的整數(shù)線性關(guān)系作為約束條件,結(jié)合雙頻載波相位無電離層組合觀測值估計雙頻載波相位整周模糊度和相對天頂對流層延遲誤差,并搜索確定雙頻載波相位整周模糊度.利用固定模糊度的衛(wèi)星大氣延遲誤差確定低高度角衛(wèi)星的雙頻載波相位寬巷整周模糊度,將固定模糊度的衛(wèi)星雙頻無電離層組合觀測值與低高度角衛(wèi)星雙頻無電離層組合值進行方程聯(lián)立,同時利用低高度角衛(wèi)星雙差寬巷整周模糊度與雙頻載波相位整周模糊度的線性約束關(guān)系,進一步確定低高度角衛(wèi)星的雙頻載波相位整周模糊度.使用實測的連續(xù)運行參考站(CORS)網(wǎng)GPS雙頻觀測數(shù)據(jù)進行算法驗證,結(jié)果表明:該方法可正確有效地實現(xiàn)參考站間低高度角衛(wèi)星的載波相位整周模糊度的快速解算.
[Abstract]:In this paper, a method for calculating integer ambiguity of low altitude satellite at low altitude angle between reference stations in real time dynamic positioning system (RTK) network of long distance global positioning system (GPS) network is presented. The ambiguity of wide roadway is calculated by using the observed values of L1 / L2 frequency and strict fixed ambiguity standard. The integer linear relation between the fixed integer ambiguity of wide lane and the integer ambiguity of dual frequency carrier phase is taken as the constraint condition. Combined with double frequency carrier phase ionospheric combined observations, the integer ambiguity of dual frequency carrier phase and relative zenith tropospheric delay error are estimated. The ambiguity of dual-frequency carrier phase is determined by searching and determining the integer ambiguity of dual-frequency carrier phase, and the ambiguity of dual-frequency carrier phase wide lane of low-altitude satellite is determined by using the satellite atmospheric delay error with fixed ambiguity. The equations of the fixed ambiguity satellite double frequency ionosphere-free combined observations and the low altitude angle satellite double frequency ionosphere-free combination values are simultaneous. At the same time, the linear constraint relationship between the integer ambiguity of dual-difference wide lane and the integer ambiguity of dual-frequency carrier phase is used. The full cycle ambiguity of dual-frequency carrier phase of low-altitude satellite is further determined. The algorithm is verified by using the measured GPS dual-frequency observation data of continuous operating reference station (GPS) network. The results show that this method can accurately and effectively solve the integer ambiguity of carrier phase of the low altitude satellite between reference stations.
【作者單位】： 遼寧工程技術(shù)大學(xué)測繪與地理科學(xué)學(xué)院;德國地學(xué)研究中心;
【基金】：國家重點研究發(fā)展計劃項目(2016YFC0803102) 國家自然科學(xué)基金項目(41504010,41504030) 遼寧省高等學(xué)校創(chuàng)新團隊項目(LT2015013) 遼寧省博士啟動基金項目(20141141,201501126)
【分類號】：P228.4

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本文編號：1654098