Precise positioning of smart phones and results analysis

doi:10.13474/j.cnki.11-2246.2020.0002

Abstract

Abstract: With the development of mobile internet and the popularity of smart phones, the demand for high-precision location based services is increasing. Google Inc announced the possibility to retrieve GNSS raw data from smart phones and tablets equipped with Android Nougat (version 7) operating system or later. Thus, high-precision positioning technology such as PPP and RTK for geodetic receivers will be used for public terminal, such as smart phones. In this paper, we use the real time precise satellite orbit、clock offset and ionosphere correction from collaborative precision positioning service to achieve PPP high-precision positioning of smart phones. Two smart phones, Xiaomi 8 and Huawei P10, are tested to evaluate the performance of PPP, the results show that the horizontal positioning accuracy is better than 1 m under the open sky. Compared with standard single-point positioning, the horizontal accuracy improves 36% and 47%.

Key words: collaborative precise positioning, smart phone positioning, raw observations, PPP, real-time precise product

CLC Number:

P228

HU Ningsong, FANG Wentao, GU Shengfeng, LOU Yidong. Precise positioning of smart phones and results analysis[J]. Bulletin of Surveying and Mapping, 2020, 0(1): 5-9.

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