Results 71 to 80 of about 186,788 (382)

Observable-specific phase biases of Wuhan multi-GNSS experiment analysis center’s rapid satellite products

Satellite Navigation, 2022
Precise Point Positioning (PPP) with Ambiguity Resolution (AR) is an important high-precision positioning technique that is gaining popularity in geodetic and geophysical applications. The implementation of PPP-AR requires precise products such as orbits,
Jianghui Geng, Qiyuan Zhang, Guangcai Li, Jingnan Liu, Donglie Liu   +4 more
doaj   +1 more source

Remote sensing and its applications using GNSS reflected signals: advances and prospects

Satellite Navigation
The Global Navigation Satellite Systems (GNSS), including the US’s GPS, China’s BDS, the European Union’s Galileo, and Russia’s GLONASS, offer real-time, all-weather, any-time, anywhere and high precision observations by transmitting L band signals ...
Shuanggen Jin, Adriano Camps, Yan Jia, Feng Wang, M. Martín-Neira, F. Huang, Q. Yan, Shuangcheng Zhang, Zhongyu Li, Komi Edokossi, Dongkai Yang, Zhiyu Xiao, Zhongmin Ma, W. Bai   +13 more
semanticscholar   +1 more source

Advances in GNSS Positioning and GNSS Remote Sensing

Sensors
Scientists and engineers use data utilize global navigation satellite systems (GNSSs) for a multitude of tasks: autonomous navigation, transport monitoring, construction, GNSS reflectometry, GNSS ionosphere monitoring, etc [...]
Yury V. Yasyukevich, Baocheng Zhang, Venkata Ratnam Devanaboyina   +2 more
openaire   +3 more sources

Software tools for GNSS interferometric reflectometry (GNSS-IR) [PDF]

GPS Solutions, 2018
GNSS-R interferometric reflectometry (also known as GNSS-IR, or GPS-IR for GPS signals) is a technique that uses data from geodetic-quality GNSS instruments for sensing the near-field environment. In contrast to positioning, atmospheric, and timing applications of GNSS, GNSS-IR uses the signal-to-noise ratio (SNR) data.
Carolyn Roesler, Kristine M. Larson
openaire   +2 more sources

Estimation and evaluation of COSMIC radio occultation excess phase using undifferenced measurements [PDF]

Atmospheric Measurement Techniques, 2017
In the GPS radio occultation technique, the atmospheric excess phase (AEP) can be used to derive the refractivity, which is an important quantity in numerical weather prediction.
P. Xia, S. Ye, K. Jiang, D. Chen
doaj   +1 more source

Low-Cost GNSS and Real-Time PPP: Assessing the Precision of the u-blox ZED-F9P for Kinematic Monitoring Applications

Remote Sensing, 2022
With the availability of low-cost, mass-market dual-frequency GNSS (Global Navigation Satellite System) receivers, standalone processing methods such as Precise Point Positioning (PPP) are no longer restricted to geodetic-grade GNSS equipment only ...
Roland Hohensinn, R. Stauffer, M. Glaner, Iván Darío Herrera Pinzón, Elie Vuadens, Yara Rossi, J. Clinton, M. Rothacher   +7 more
semanticscholar   +1 more source

The GRSS Standard for GNSS-Reflectometry

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Talk delivered in 2020 IEEE International Geoscience and Remote Sensing Symposium online, 26 September - 2 October ...
Carreno-Luengo, H., Camps, A., Flouri, N., Martin-Neira, M., Ruf, C., Wang, T., Khalsa, S., Clarizia, M., Reynolds, J., Johnson, J., O’Brien, A., Galdi, C., di Bisceglie, M., Dielacher, A., Jales, P., Unwin, M., King, L., Foti, G., Shah, R., Pascual, D., Schreiner, B., Asgarimehr, M., Wickert, J., Ribó, S., Cardellach, E.   +24 more
openaire   +4 more sources

GPS + BDS Network Real-Time Differential Positioning Using a Position Domain Estimation Method

Remote Sensing, 2019
The network real-time differential positioning technique is a good choice for meter and sub-meter level’s navigation. More attention has been paid to the Global Positioning System (GPS) and GPS + GLONASS (GLObal NAvigation Satellite System) network
Jianhui Cui, Rui Yan, Chenlong Deng, Weiming Tang, Xuan Zou, Mingxing Shen, Qian Liu, Yawei Wang, Yangyang Li   +8 more
doaj   +1 more source

Real-Time Estimation of Low Earth Orbit (LEO) Satellite Clock Based on Ground Tracking Stations

Remote Sensing, 2020
The rapid movement of low Earth orbit (LEO) satellite can improve geometric diversity, which contributes to the rapid convergence of Global Navigation Satellite System (GNSS) precise point positioning (PPP). However, the LEO onboard receiver clock cannot
Zhixin Yang, Hui Liu, Chuang Qian, Bao Shu, Linjie Zhang, Xintong Xu, Yi Zhang, Yidong Lou   +7 more
doaj   +1 more source

Assessment of Multi-Frequency PPP Ambiguity Resolution Using Galileo and BeiDou-3 Signals

Remote Sensing, 2021
From network RTK to PPP-RTK, it is highly expected that high-precision positioning within a few minutes can be achieved with a sparse reference network.
Jiang Guo, Qiyuan Zhang, Guangcai Li, Kunlun Zhang   +3 more
doaj   +1 more source