Research on real-time positioning of pseudorange smoothing for smart phone observations

doi:10.13474/j.cnki.11-2246.2020.0358

Bulletin of Surveying and Mapping ›› 2020, Vol. 0 ›› Issue (11): 76-79,89.doi: 10.13474/j.cnki.11-2246.2020.0358

Previous Articles Next Articles

Research on real-time positioning of pseudorange smoothing for smart phone observations

CHEN Bingzhu^1,2, ZHENG Zuoya³, GU Shouzhou², CHEN Chong^1,2, BEI Jinzhong², SHAN Rui⁴

1. Shandong University of Science and Technology, Qingdao 266590, China;
2. Chinese Academic of Surveying and Mapping, Beijing 100830, China;
3. China Academic of Electronics and Information Technology, Beijing 100041, China;
4. Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China

Received:2020-01-16 Revised:2020-05-18 Online:2020-11-25 Published:2020-11-30

Abstract

Abstract: Due to the limitations of the internal antenna structure and GNSS receiving chip of the smart phone, the original observation value of the phone is easily affected by the external environment, and the observation noise is large, which leads to the problem of poor positioning accuracy. In order to improve the accuracy of mobile phone's pseudorange single point positioning, this paper studies and analyzes the performance of pseudorange single point positioning based on smoothed carrier and smoothed Doppler on the basis of detecting the cycle slip of mobile carrier observation value. The experimental results show that both carrier smoothed pseudorange and Doppler smoothed pseudorange can effectively improve the positioning accuracy,however, Doppler smoothed pseudorange has better stability and better positioning accuracy, the statistics showed that the RMS values in the three directions of east (E), north (N), and high (U) are respectively increased by 52%,62%,60%, and the planar accuracy entered 1.5 m.

Key words: smart phone, cycle slip, carrier phase, Doppler, smoothed pseudorange

CLC Number:

P228.4

CHEN Bingzhu, ZHENG Zuoya, GU Shouzhou, CHEN Chong, BEI Jinzhong, SHAN Rui. Research on real-time positioning of pseudorange smoothing for smart phone observations[J]. Bulletin of Surveying and Mapping, 2020, 0(11): 76-79,89.

References

[1] 毕京学,甄杰,郭英.Android手机GPS和A-GPS定位精度分析[J].测绘通报,2016(7):10-13.
[2] CHEN B, GAO C F, LIU Y S, et al. Real-time precise point positioning with a Xiaomi MI 8 Android smartphone[J]. Sensors,2019,19(12):2835.
[3] GIM J, PARK K. Comparison of positioning accuracy using the pseudorange from Android GPS raw measurements[J]. Journal of Advanced Navigation Technology, 2017,21:514-519.
[4] 赵硕,秘金钟,徐彦田,等.双频智能手机GNSS数据质量及定位精度分析[J].测绘科学, 2020, 45(2):22-28.
[5] SIKIRICA N, MALIC E, RUMORA I, et al. Exploitation of Google GNSS measurement API for risk assessment of GNSS applications[C]//Proceedings of the 25th Telecom-munication Forum (TELFOR). Belgrade:IEEE, 2017.
[6] 王涛,程鹏飞,成英燕.相位平滑伪距对GNSS定位精度的影响[J].导航定位学报,2018,6(4):14-18.
[7] ZHOU Z B, LI B F. Optimal Doppler-aided smoothing strategy for GNSS navigation[J]. GPS Solutions, 2017,21,197-210.
[8] 贾茜子. GNSS周跳探测与修复方法研究[D].桂林:桂林电子科技大学,2019:25-36.
[9] European GNSS Agency. Using GNSS raw measurements on android devices[M].[S.l.]:European GNSS Agency, 2017.
[10] RILEY S, LENTZ W, CLARE A. On the path to precision-observations with Android GNSS observables[C]//Proceedings of the 30th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS+2017). Portland:[s.n.], 2017.
[11] WU Q, SUN M, ZHOU C, et al. Precise point positioning using dual-frequency GNSS observations on smartphone[J].Sensors.2019,19(9):2189.
[12] 刘广军,郭晶,罗海英.GNSS最优载波相位平滑伪距研究[J].飞行器测控学报,2015,34(2):161-167.
[13] 管庆林,樊春明,朱正平,等.单点定位中一种载波相位平滑伪距方法[J].测绘科学,2019,44(2):116-121.
[14] 谢钢.GPS原理与接收机设计[M].北京:电子工业出版社, 2009:69-94.
[15] 孙伟,段顺利.GPS多普勒伪距平滑定位与测速方法[J].测绘科学,2016,41(12):81-84.

Research on real-time positioning of pseudorange smoothing for smart phone observations

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 11

Recommended Articles

Metrics

Comments

[1]	XU Guoliang, LI Zhen, TAO Jun, GUO Jing, ZHAO Qile. RTK+PDR fusion positioning for smart phone in complex environment [J]. Bulletin of Surveying and Mapping, 2021, 0(12): 44-49,98.
[2]	XIAO Qinghuai, BEI Jinzhong, GU Shouzhou. Analysis of two different smartphone pseudo-range smoothing methods [J]. Bulletin of Surveying and Mapping, 2021, 0(1): 1-8.
[3]	WANG Li, FAN Yongzhao. Detection and repair of reference station cycle slip using differential observations among epochs [J]. Bulletin of Surveying and Mapping, 2020, 0(5): 134-137,141.
[4]	CUI Lilu, HE Qiong, ZOU Zhengbo, XU Wenchao, JIANG Xueli, WEI Pengzhi. BeiDou triple-frequency cycle-slip detection and repair based on geometry-free and ionosphere-free combination [J]. Bulletin of Surveying and Mapping, 2020, 0(4): 58-62.
[5]	ZHANG Shuwei, GAO Jingxiang, ZHAO Long, LI Zengke. Carrier/Doppler smooth pseudorange in Android mobile phone [J]. Bulletin of Surveying and Mapping, 2020, 0(4): 63-67.
[6]	MENG Lingdong, CHEN Junping, WANG Jiexian. Real-time cycle slip detection and repair of GNSS triple-frequency observations with wavelet transform united code-phase combinations [J]. Bulletin of Surveying and Mapping, 2020, 0(3): 140-144.
[7]	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.
[8]	TU Jinsheng, ZHANG Rui, HONG Xuebao, HAN Mutian. A Space-borne GNSS-R DDM waveform classification method for land surface [J]. 测绘通报, 2019, 0(8): 44-47.
[9]	AI Zeyu, JI Jiankou. Application of multi-functional integrated beacon in marine construction [J]. 测绘通报, 2019, 0(5): 155-157,162.
[10]	GUI Weizhen, LI Changqing, HUANG Xiaoyang, WANG Guobin, LIU Yanjun. Detection and Repair of BDS Small Cycle Slips [J]. 测绘通报, 2018, 0(11): 93-98.
[11]	KANG Tingting, HUANG Yan, XU Yuan, WANG Yajun, LIU Yuan. Application of RTK in Testing for App-based Ride-hailing Billing System [J]. 测绘通报, 2017, 0(7): 120-123,136.