摘要
传统三频线性组合的周跳检测量一般通过历元间作差产生,这样要求组合后必须保证不含几何距离,使得线性组合的方式存在一个强约束,很多具有优良特性的单纯载波相位组合无法使用。而将多项式拟合法应用到三频线性组合载波后,则无需限制组合无几何约束。静态场景下,本文提出了一种基于多项式拟合法的三频周跳探测改进算法,通过定义电离层放大因子、钟差放大因子以及组合噪声/波长放大因子,选择出三组线性组合,以此来探测周跳。实测结果表明,本算法可以有效的探测出1周的小周跳。
Traditional methods of Tri-frequency cycle slip detection are based on the difference of epochs,which requires that the combination do not contain geometric distance.And that causes a strong constraint in the combination.When the polynomial fitting applies to the Tri-frequency cycle slip detection,the constraint is relieved.In static case,this novel applies the polynomial to Tri-frequency cycle slip,and defines ionosphere amplification factor、clock bias amplification factor and noise amplification.The results shows that this method can detect at least 1slip.
出处
《全球定位系统》
CSCD
2016年第5期79-83,共5页
Gnss World of China
