Establishment and assessment of a zenith wet delay (ZWD) augmentation model Fei YangJiming GuoYi Xu Original Article 11 October 2021 Article: 148
A new IMU-aided multiple GNSS fault detection and exclusion algorithm for integrated navigation in urban environments Rui SunJunhui WangWashington Yotto Ochieng Original Article 08 October 2021 Article: 147
Integrated GNSS Doppler velocity determination for GEOHALO airborne gravimetry Kaifei HeTianhe XuFrank Flechtner Original Article 06 October 2021 Article: 146
Retrieval of Ne(h) profile for ionosonde by assimilating collocated radio occultation data into NeQuick2 M. M. Shaikh Original Article 28 September 2021 Article: 145
Code and phase multipath mitigation by using the observation-domain parameterization and its application in five-frequency GNSS ambiguity resolution Zhetao Zhang Original Article 25 September 2021 Article: 144
A comparative analysis of navigation signals in BDS-2 and BDS-3 using zero-baseline experiments Chenlong DengShufeng QiChi Guo Original Article 21 September 2021 Article: 143
Performance evaluation of BDS-3 PPP-B2b precise point positioning service Yangyin XuYuanxi YangJinlong Li Original Article 12 September 2021 Article: 142
Benefits of operating multiple atomic frequency standards for GNSS satellites John P. JanisMichael R. JonesNicholas F. Quackenbush Original Article 09 September 2021 Article: 141
Full-ISL clock offset estimation and prediction algorithm for BDS3 Junyang PanXiaogong HuWenli Dong Original Article 09 September 2021 Article: 140
Testing of general relativity with two Galileo satellites in eccentric orbits J. Kouba Original Article 27 August 2021 Article: 139
Combining TWSTFT and GPS PPP using a Kalman filter Weixiong WangShaowu DongHuijie Song Original Article 25 August 2021 Article: 138
On-the-fly ambiguity resolution method for pseudolite/INS integration based on double-difference square observations Shijie YunZheng YaoMingquan Lu Original Article 19 August 2021 Article: 137
Correction to: Development of a GNSS‑IR instrument based on low‑cost positioning chips and its performance evaluation for estimating the reflector height Yunwei LiKegen YuJiancheng Li Correction 18 August 2021 Article: 136
Ionosphere-weighted undifferenced and uncombined PPP-RTK: theoretical models and experimental results Jiuping ZhaBaocheng ZhangPengyu Hou Original Article Open access 16 August 2021 Article: 135
BDS-3 SAR service and initial performance Gang LiShuren GuoWenxuan Li Original Article 11 August 2021 Article: 134
Coastal sea-surface wave measurements using software-based GPS reflectometers in Lanyu, Taiwan Lung-Chih TsaiShin-Yi SuMohamad Mahdi Alizadeh Original Article 03 August 2021 Article: 133
Effects of storm-induced equatorial plasma bubbles on GPS-based kinematic positioning at equatorial and middle latitudes during the September 7–8, 2017, geomagnetic storm Irina ZakharenkovaIurii Cherniak Original Article 31 July 2021 Article: 132
Initial Assessment of the BDS-3 PPP-B2b RTS compared with the CNES RTS Jun TaoJingnan LiuBoxiao Ju Original Article 29 July 2021 Article: 131
Performance evaluation of the filters with adaptive factor and fading factor for GNSS/INS integrated systems Chen JiangShubi ZhangZhen Li Original Article 27 July 2021 Article: 130
Broadcast ephemerides for LEO augmentation satellites based on nonsingular elements Lingdong MengJunping ChenYize Zhang Original Article 22 July 2021 Article: 129
Comparisons of CODE and CNES/CLS GPS satellite bias products and applications in Sentinel-3 satellite precise orbit determination Bingbing DuanUrs Hugentobler Original Article Open access 16 July 2021 Article: 128
Development of a GNSS-IR instrument based on low-cost positioning chips and its performance evaluation for estimating the reflector height Yunwei LiKegen YuJiancheng Li Original Article 12 July 2021 Article: 127
Estimation and analysis of GPS inter-fequency clock biases from long-term triple-frequency observations Fan ZhangHongzhou ChaiZhenqiang Du Original Article 10 July 2021 Article: 126
Extensive cosmic showers detection: the importance of timing and the role of GPS in the EEE experiment Giancarlo CerrettoDavide CalonicoMarco Sellone Review Article Open access 10 July 2021 Article: 125
Correction to: PPP with integer ambiguity resolution for GPS and Galileo using satellite products from different analysis centers Marcus GlanerRobert Weber Correction 09 July 2021 Article: 124