Analyzing the contributions of multi-GNSS and INS to the PPP-AR outage re-fixing Zhenqiang DuHongzhou ChaiMinZhi Xiang Original Article 01 April 2021 Article: 81
Clock bias prediction algorithm for navigation satellites based on a supervised learning long short-term memory neural network Bohua HuangZengxi JiYupu Wang Original Article Open access 30 March 2021 Article: 80
A new integrated method of GNSS and MODIS measurements for tropospheric water vapor tomography Wenyuan ZhangShubi ZhangXin Liu Original Article 28 March 2021 Article: 79
Band-limited dual-frequency multiplexing technique for GNSS signals Junjie MaZheng YaoNingyan Guo Original Article 27 March 2021 Article: 78
Precise point positioning with GPS and Galileo broadcast ephemerides Luca CarlinAndré HauschildOliver Montenbruck Original Article Open access 27 March 2021 Article: 77
Monitoring and prediction of hurricane tracks using GPS tropospheric products Yohannes Getachew EjiguFelix Norman TeferleAddisu Hunegnaw Original Article Open access 22 March 2021 Article: 76
Topical collection on timekeeping in space: technology, practice, promise, and benefits Demetrios MatsakisJames Camparo Editorial 22 March 2021 Article: 75
High-precision carrier phase timing method with single communication satellite and the test campaign Yang ZhangLingling XuXiaochun Lu Original Article 12 March 2021 Article: 74
An open-source low-cost sensor for SNR-based GNSS reflectometry: design and long-term validation towards sea-level altimetry M. A. R. FagundesI. Mendonça-TintiF. Geremia-Nievinski GPS Toolbox Open access 10 March 2021 Article: 73
Probabilistic approach to detect and correct GNSS NLOS signals using an augmented state vector in the extended Kalman filter Changhui JiangBing XuLi-Ta Hsu Original Article 10 March 2021 Article: 72
A new method to estimate GPS satellite and receiver differential code biases using a network of LEO satellites Liangliang YuanMainul HoqueShuanggen Jin Original Article Open access 09 March 2021 Article: 71
Bandwidth correction of Swarm GPS carrier phase observations for improved orbit and gravity field determination Lucas SchreiterOliver MontenbruckAdrian Jäggi Original Article Open access 09 March 2021 Article: 70
Real-time GNSS precise point positioning for low-cost smart devices Liang WangZishen LiZhiyu Wang Original Article Open access 03 March 2021 Article: 69
Ionospheric VTEC and satellite DCB estimated from single-frequency BDS observations with multi-layer mapping function Ke SuShuanggen JinLiangliang Yuan Original Article 01 March 2021 Article: 68
Common-mode error and multipath mitigation for subdaily crustal deformation monitoring with high-rate GPS observations K. ZhengX. ZhangF. Guo Original Article 01 March 2021 Article: 67
GREAT-UPD: An open-source software for uncalibrated phase delay estimation based on multi-GNSS and multi-frequency observations Xingxing LiXinjuan HanHongjie Zheng GPS Toolbox 23 February 2021 Article: 66
GNSS-based hardware-in-the-loop simulations of spacecraft formation flying with the global ionospheric model TIEGCM YuXiang PengWayne A. ScalesDong Lin Original Article 23 February 2021 Article: 65
Joint angle and delay estimation for GNSS multipath signals based on multiple sparse Bayesian Learning Ning ChangWenjie WangGonzalo Seco-Granados Original Article 22 February 2021 Article: 64
Monitoring a storm surge during Hurricane Harvey using multi-constellation GNSS-Reflectometry Su-Kyung KimJihye Park Original Article 21 February 2021 Article: 63
Assessment of single-difference and track-to-track ambiguity resolution in LEO precise orbit determination Xingyu ZhouHua ChenWeiping Jiang Original Article 19 February 2021 Article: 62
GNSS-to-GNSS time offsets: study on the broadcast of a common reference time Ilaria SesiaGiovanna SignorilePatrizia Tavella Original Article Open access 17 February 2021 Article: 61
A real-time cycle slip repair method using the multi-epoch geometry-based model Wenhao ZhangJinling Wang Original Article 15 February 2021 Article: 60
A linear Kalman filter-based integrity monitoring considering colored measurement noise Yuting GaoYang JiangGuanwen Huang Original Article 14 February 2021 Article: 59
Characteristics of phase bias from CNES and its application in multi-frequency and multi-GNSS precise point positioning with ambiguity resolution Tianjun LiuHua ChenTao Geng Original Article 12 February 2021 Article: 58
BeiDou-3 broadcast clock estimation by integration of observations of regional tracking stations and inter-satellite links Yufei YangYuanxi YangMudan Su Original Article 12 February 2021 Article: 57
Time–frequency analysis of the Galileo satellite clocks: looking for the J2 relativistic effect and other periodic variations Valerio FormichellaLorenzo GalleaniIlaria Sesia Original Article Open access 11 February 2021 Article: 56
GiRsnow: an open-source software for snow depth retrievals using GNSS interferometric reflectometry Shuangcheng ZhangJilun PengQi Liu GPS Toolbox 11 February 2021 Article: 55
Statistical models to provide meaningful information to GNSS users in the presence of ionospheric scintillation S. Vadakke VeettilM. Aquino Original Article Open access 10 February 2021 Article: 54
Model and implementation of pseudorange-bias-free linear channel Yanhong KouHuiwen Wu Original Article Open access 10 February 2021 Article: 53
Theoretical analysis of the multi-GNSS contribution to partial ambiguity estimation and R-ratio test-based ambiguity validation Xin LiuShubi ZhangNan Ding Original Article 09 February 2021 Article: 52
Endpoint-based optimal fractal interpolation for predicting BDS-3 system time offsets Tao HanDecai Zou Original Article 09 February 2021 Article: 51
Enhancing navigation performance through visual-inertial odometry in GNSS-degraded environment Jianchi LiaoXingxing LiHuidan Wang Original Article 08 February 2021 Article: 50
BDS signal-in-space anomaly probability analysis over the last 6 years Yuxin ZhaoChun ChengLin Zhao Original Article 07 February 2021 Article: 49
M-estimation-based robust and precise baseline determination for formation-flying satellites Xiang GuoQile Zhao Original Article 06 February 2021 Article: 48
Fusing denoised stereo visual odometry, INS and GPS measurements for autonomous navigation in a tightly coupled approach M. NezhadshahbodaghiM. R. MosaviM. T. Hajialinajar Original Article 05 February 2021 Article: 47
How modernized and strengthened GPS signals enhance the system performance during solar radio bursts Yu. V. YasyukevichA. S. YasyukevichE. I. Astafyeva Original Article 05 February 2021 Article: 46
Impact of Galileo-to-GPS-Time-Offset accuracy on multi-GNSS positioning and timing P. DefraigneE. PinatB. Bertrand Original Article 02 February 2021 Article: 45
Sub-nanosecond one-way real-time time service system based on UTC Meifang WuBaoqi SunXuhai Yang Original Article 30 January 2021 Article: 44
A new simplified zenith tropospheric delay model for real-time GNSS applications Jian MaoQiang WangTiejun Cui Original Article 28 January 2021 Article: 43
Enhanced solar radiation pressure model for GPS satellites considering various physical effects Bingbing DuanUrs Hugentobler Original Article Open access 28 January 2021 Article: 42
Indoor precise point positioning with pseudolites using estimated time biases iPPP and iPPP-RTK Yu SunJinling WangJianyun Chen Original Article 27 January 2021 Article: 41
Baseline length constraint approaches for enhancing GNSS ambiguity resolution: comparative study Liye MaLiguo LuYidong Lou Original Article 27 January 2021 Article: 40
Improving long-baseline rapid GPS time transfers by a modified common-view method Wen-Hung TsengShinn-Yan Lin Original Article 27 January 2021 Article: 39
Robust time-hopping pseudolite signal acquisition method based on dynamic Bayesian network Xu LiuZheng YaoMingquan Lu Original Article 19 January 2021 Article: 38
Interference mitigation: impact on GNSS timing Daniele BorioCiro Gioia Original Article Open access 19 January 2021 Article: 37
An efficient parallel computing strategy for the processing of large GNSS network datasets Yang CuiZhengsheng ChenZhiping Lu Original Article 19 January 2021 Article: 36
Removing day-boundary discontinuities on GNSS clock estimates: methodology and results Adrià Rovira-GarciaJosé Miguel JuanErik Schoenemann Original Article Open access 19 January 2021 Article: 35
ACES/PHARAO: high-performance space-to-ground and ground-to-ground clock comparison for fundamental physics M. LilleyE. SavalleP. Wolf Review Article 18 January 2021 Article: 34
Detection of replay attacks to GNSS based on partial correlations and authentication data unpredictability Gonzalo Seco-GranadosDavid Gómez-CascoIgnacio Fernández-Hernández Original Article 18 January 2021 Article: 33
Multi-GNSS real-time precise clock estimation considering the correction of inter-satellite code biases Liang ChenMin LiChuang Shi Original Article 15 January 2021 Article: 32