一种基于智能手机相位的多维周跳探测算法

A multi-dimensional cycle hop detection algorithm based on smartphonephase

受智能手机内置低成本线性极化天线性能的约束,其原始GNSS载波相位观测值存在极高比例的周跳观测值,这给智能手机的精密定位带来挑战。为有效利用相位观测值,文章在传统TDCP周跳探测算法的基础上,提出一种附加验前、验后约束的智能手机原始相位观测值多维周跳探测方法。实验结果表明,该方法可以有效标记相位观测值的周跳信息,在城市综合路况下智能手机实时PPP解算平面误差RMS在2.5m以内,充分验证该文周跳探测算法的有效性。

Constrained by the performance of the built-in low-cost linear polarized antenna of smart phones,the original GNSS carrier phase observations have a very high proportion of cycle hop observations,which brings challenges to the precise positioning of smart phones.In order to make effective use of phase observations,based on the traditional TDCP cycle jump detection algorithm,this paper proposes a multi-dimensional cycle jump detection method for smart phone original phase observations with additional prior and post constraints.Experimental results show that this method can effectively mark the cycle hop information of phase observations,and the RMS of smart phone real-time PPP solution is less than 2.5m under urban comprehensive road conditions,which fully verifies the effectiveness of the cycle hop detection algorithm in this paper.