【摘要】：為了解決黃河口海域測驗中遠距離數(shù)據(jù)傳輸?shù)膯栴},利用精密星歷代替廣播星歷,采用GPS動態(tài)后處理技術取代數(shù)字傳輸技術,得到了不同基線長度測點的三維坐標值。在90 km范圍之內,與GPS-RTK模式獲取的數(shù)據(jù)相比,GPS動態(tài)后處理技術處理得到的高程數(shù)據(jù)誤差最大為0.167 m,平均誤差為0.007~0.047 m,中誤差在0.064 m以內,誤差的變化與基線長度基本呈正比,遠小于傳統(tǒng)的潮汐改正誤差;測點平面點位數(shù)據(jù)誤差最大不超過0.097 m,平均誤差為0.004~0.031 m,中誤差不超過0.037 m,其變化趨勢和基線長度沒有明顯的關系,也遠小于信標機的定位誤差。
[Abstract]:In order to solve the problem of long-distance data transmission in the Yellow River Estuary Sea area test, the precise ephemeris is used instead of the broadcast ephemeris, and the digital transmission technology is replaced by the GPS dynamic post-processing technique, and the 3D coordinate values of the measuring points with different baseline lengths are obtained. In the range of 90 km, compared with the data obtained by GPS-RTK mode, the maximum error of elevation data obtained by GPS dynamic post-processing is 0.167 m, the average error is 0.007 ~ 0.047 m, and the median error is less than 0.064 m. The variation of the error is proportional to the baseline length, which is much smaller than the traditional tidal correction error. The maximum error of measuring point is not more than 0.097 m, the average error is 0.004 ~ 0.031 m, and the median error is not more than 0.037 m. There is no obvious relation between the variation trend and baseline length, and the error is much smaller than that of beacon.
【作者單位】： 黃河水利委員會山東水文水資源局;
【分類號】：P228.4;P332

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本文編號：2339515