华为P30和荣耀9X智能终端原始GNSS观测值的质量分析

Quality Analysis of Original GNSS Observations of Huawei P30 and Honor 9X Smart Terminals

随着智能终端的普及,基于移动智能终端的应用服务正飞速拓展,但当前华为智能终端的原始GNSS数据质量分析仍较少。因此,本文选取两台华为智能终端(华为P30和华为荣耀9X)为实验对象,从可见卫星数、信噪比、观测噪声和伪距多路径误差分析华为智能终端在GPS+BDS系统下的原始GNSS观测值的数据质量,并分析两款智能终端的定位精度。实验结果表明:华为P30和荣耀9X分别观测到23、20颗卫星,P30手机的平均信噪比优于荣耀9X,两款智能终端在单系统下的观测噪声与伪距多路径误差均大于在GPS+BDS下的观测噪声与伪距多路径误差。

With the popularization of smart terminals,application services based on mobile smart terminals are rapidly expanding,but the quality analysis of the original GNSS data of Huawei smart terminals is still limited.Therefore,this article selects two Huawei smart terminals(Huawei P30 and Huawei Honor 9X)as the experimental objects.From the number of visible satellites,signal-to-noise ratio,observation noise,and pseudorange multi-path error,we analyze the performance of Huawei smart terminals under the GPS+BDS system,including data quality of the original GNSS observations and analysis of the positioning accuracy of the two smart terminals.Experimental results show that:Huawei P30 and Honor 9X have observed about 23 and 20 satellites respectively.The average signal-to-noise ratio of P30 mobile phone is better than Honor 9X.The observation noise and pseudorange multi-path error of the two smart terminals in a single system are both greater than observation noise and pseudo-range multipath error under GPS+BDS.