Quality assessment of Android smartphone with GNSS raw observations

ZHANG Yin; TU Rui; HONG Ju; LI Fangxin; HOU Furong

doi:10.12265/j.gnss.2021042501

Volume 46 Issue 4

Aug. 2021

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GNSS World of China > 2021 > 46(4): 85-92. > DOI: 10.12265/j.gnss.2021042501

ZHANG Yin, TU Rui, HONG Ju, LI Fangxin, HOU Furong. Quality assessment of Android smartphone with GNSS raw observations[J]. GNSS World of China, 2021, 46(4): 85-92. DOI: 10.12265/j.gnss.2021042501

Citation:

ZHANG Yin, TU Rui, HONG Ju, LI Fangxin, HOU Furong. Quality assessment of Android smartphone with GNSS raw observations[J]. GNSS World of China, 2021, 46(4): 85-92. DOI: 10.12265/j.gnss.2021042501

Citation:

ZHANG Yin, TU Rui, HONG Ju, LI Fangxin, HOU Furong. Quality assessment of Android smartphone with GNSS raw observations[J]. GNSS World of China, 2021, 46(4): 85-92. DOI: 10.12265/j.gnss.2021042501

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Quality assessment of Android smartphone with GNSS raw observations

ZHANG Yin^{1, 2},
TU Rui^{1, 2, 3, ,},
HONG Ju^{1, 2},
LI Fangxin^{1, 2},
HOU Furong^{1, 2}

1.
National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Key laboratory of precision navigation and timing technology, Chinese Academy of Sciences, Xi’an 710600, China

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Received Date: April 24, 2021
Available Online: August 12, 2021

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Abstract

With the continuous construction of Global Navigation Satellite System (GNSS), the location-based service (LBS) of smart phones has rapidly developed. In this paper, several commonly used smartphone are selected as research objects, such as Samsung S9+(Exynos), Huawei Mate30, Huawei P40 Pro. the measurement receiver UR4B0-D from BDStar Navigation is used for synchronous static observation experiment. the GNSS raw data quality of Android smartphone is analyzed from the aspects of satellite visibility, carrier-to-noise ratio (CNR), satellite altitude angle, multipath error and so on. The results show that there are obvious differences in observation capabilities and data quality among different smartphones. Android smartphones have poor data quality and low CNR. The CNR of Android smartphones has no obvious relationships with the satellite altitude angle. In addition, multipath error is one of the main errors that affect the high-precision positioning of Android smartphones.
- Android smartphone,
- GNSS raw data,
- data quality assessment,
- multipath error,
- static data analysis

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