Search Results - "GPS solutions"

Development of an improved empirical model for slant delays in the troposphere (GPT2w) by Böhm, Johannes, Möller, Gregor, Schindelegger, Michael, Pain, Gregory, Weber, Robert

“…Global pressure and temperature 2 wet (GPT2w) is an empirical troposphere delay model providing the mean values plus annual and semiannual amplitudes of…”
Get full text

GAMP: An open-source software of multi-GNSS precise point positioning using undifferenced and uncombined observations by Zhou, Feng, Dong, Danan, Li, Weiwei, Jiang, Xinyuan, Wickert, Jens, Schuh, Harald

“…As the number of GNSS satellites and stations increases, GNSS data processing software should be developed that is easy to operate, efficient to run, and has a…”
Get full text

A new IMU-aided multiple GNSS fault detection and exclusion algorithm for integrated navigation in urban environments by Sun, Rui, Wang, Junhui, Cheng, Qi, Mao, Yi, Ochieng, Washington Yotto

“…The performance of Global Navigation Satellite Systems (GNSS) and Inertial Measurement Unit (IMU) integrated navigation systems can be severely degraded in…”
Get full text

New time-differenced carrier phase approach to GNSS/INS integration by Mao, Yi, Sun, Rui, Wang, Junhui, Cheng, Qi, Kiong, Loo Chu, Ochieng, Washington Yotto

“…The accuracy of navigation information is essential for modern transport systems. Such information includes position, velocity and attitude. Because of the…”
Get full text

PRIDE PPP-AR: an open-source software for GPS PPP ambiguity resolution by Geng, Jianghui, Chen, Xingyu, Pan, Yuanxin, Mao, Shuyin, Li, Chenghong, Zhou, Jinning, Zhang, Kunlun

“…The PRIDE Lab at GNSS Research Center of Wuhan University has developed an open-source software for GPS precise point positioning ambiguity resolution (PPP-AR)…”
Get full text

BeiDou satellite-induced code pseudorange variations: diagnosis and therapy by Wanninger, Lambert, Beer, Susanne

“…Code pseudorange measurements of the Chinese GNSS BeiDou reveal variations which result in code–phase divergences of more than 1 m. We have analyzed these…”
Get full text

Quality assessment of GNSS observations from an Android N smartphone and positioning performance analysis using time-differenced filtering approach by Zhang, Xiaohong, Tao, Xianlu, Zhu, Feng, Shi, Xiang, Wang, Fuhong

“…The development of low-cost GNSS chips inspired the development of advanced positioning, navigation and timing devices. In ‘I/O of 2016’, Google announced that…”
Get full text

GNSS code and carrier phase observations of a Huawei P30 smartphone: quality assessment and centimeter-accurate positioning by Wanninger, Lambert, Heßelbarth, Anja

“…In 2016, an application programming interface was added to the Android operating systems, which enables the access of GNSS raw observations. Since then, an…”
Get full text

Real-time precise point positioning with a low-cost dual-frequency GNSS device by Nie, Zhixi, Liu, Fei, Gao, Yang

“…In recent years, there is an increasing demand for precise positioning with low-cost GNSS devices in support of applications from self-driving cars to unmanned…”
Get full text

Analysis and modeling GPS NLOS effect in highly urbanized area by Hsu, Li-Ta

“…Current GPS positioning accuracy in urban areas is still unsatisfactory for various applications, including pedestrian navigation and autonomous driving. Due…”
Get full text

Quality assessment of multi-GNSS orbits and clocks for real-time precise point positioning by Kazmierski, Kamil, Sośnica, Krzysztof, Hadas, Tomasz

“…An increasing number of satellites of global navigation satellite systems (GNSS) and their constant modernization allow improving positioning accuracy and…”
Get full text

Broadcast versus precise ephemerides: a multi-GNSS perspective by Montenbruck, Oliver, Steigenberger, Peter, Hauschild, André

“…A consistent analysis of signal-in-space ranging errors (SISREs) is presented for all current satellite navigation systems, considering both global average…”
Get full text

Multi-GNSS precise point positioning with raw single-frequency and dual-frequency measurement models by Lou, Yidong, Zheng, Fu, Gu, Shengfeng, Wang, Charles, Guo, Hailin, Feng, Yanming

“…The emergence of multiple satellite navigation systems, including BDS, Galileo, modernized GPS, and GLONASS, brings great opportunities and challenges for…”
Get full text

Performance evaluation of BDS-3 PPP-B2b precise point positioning service by Xu, Yangyin, Yang, Yuanxi, Li, Jinlong

“…A new precise point positioning (PPP) service has been provided by BeiDou global navigation satellite system (BDS-3). The correction parameters, including…”
Get full text

Real-time GNSS precise point positioning for low-cost smart devices by Wang, Liang, Li, Zishen, Wang, Ningbo, Wang, Zhiyu

“…Global Navigation Satellite System raw measurements from Android smart devices make accurate positioning possible with advanced techniques, e.g., precise point…”
Get full text

Characteristics of raw multi-GNSS measurement error from Google Android smart devices by Li, Guangcai, Geng, Jianghui

“…Developers targeting Android platforms can obtain raw GNSS measurements, which can achieve submeter or even decimeter-level positioning accuracy. An accurate…”
Get full text

3D building model-based pedestrian positioning method using GPS/GLONASS/QZSS and its reliability calculation by Hsu, Li-Ta, Gu, Yanlei, Kamijo, Shunsuke

“…The current low-cost global navigation satellite systems (GNSS) receiver cannot calculate satisfactory positioning results for pedestrian applications in urban…”
Get full text

Signal characterization and assessment of code GNSS positioning with low-power consumption smartphones by Paziewski, Jacek, Sieradzki, Rafal, Baryla, Radoslaw

“…It has been acknowledged that smartphone GNSS observations suffer not only from high measurement noise and multipath but also from anomalies such as duty…”
Get full text

Ionosphere-weighted undifferenced and uncombined PPP-RTK: theoretical models and experimental results by Zha, Jiuping, Zhang, Baocheng, Liu, Teng, Hou, Pengyu

“…Precise ionospheric information, as like precise satellite orbits, clocks, and code/phase biases, is a critical factor for achieving fast integer ambiguity…”
Get full text

Initial Assessment of the BDS-3 PPP-B2b RTS compared with the CNES RTS by Tao, Jun, Liu, Jingnan, Hu, Zhigang, Zhao, Qile, Chen, Guo, Ju, Boxiao

“…In 2020, the BeiDou navigation satellite system (BDS) initiated a real-time service (RTS) for precise point positioning (PPP) using the B2b signal for users in…”
Get full text