【摘 要】
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In this paper,based on the characteristics of easy to fix the ambiguity of BeiDou triple frequency ultra-wide lane,a fast solution method of wide lane ambig
【机 构】
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School of Transportation,Southeast University,Nanjing 211189,China
论文部分内容阅读
In this paper,based on the characteristics of easy to fix the ambiguity of BeiDou triple frequency ultra-wide lane,a fast solution method of wide lane ambiguity of BDS/GPS dual system based on BeiDou triple frequency is proposed.Firstly,the combination ambiguity of BeiDou(0,-1,1)ultra-wide lane is fixed by using combination of wide-lane carrier and narrow-lane pseudo-range; Then,according to the principle of least squares,the ambiguity of Beidou(1,4,-5)ultra wide lane is solved by constraint; Next,the ambiguities of Beidou(1,-1,0)and(1,0,-1)wide lane can be obtained by linear combination of the two ambiguities of fixed ultra wide lane; Considering the effects of tropospheric and ionospheric errors on long and medium baselines,the combined wide-lane ambiguity of Beidou(1,0,-1)is taken as the optimal constraint,which is brought into the comprehensive constraint model to realize the fixed solution of GPS wide-lane ambiguity.Experimental results show that the method proposed in this paper can quickly fix the ambiguity of wide-lane GPS.
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