Lanyi G E, Roth T. A comparison of mapped and measured total ionospheric electron content using global positioning system and beacon satellite observations[J]. Radio Sci., 1988, 23(4):483-492
[2]
Coco D S, Coker C, Dahlke S R, et al. Variability of GPS satellite differential group delay biases[J]. IEEE Trans. Aeros. Elect. Syst., 1991, 27(6):931-938
[3]
Sardón E, Zarraoa N. Estimation of total electron content using GPS data: How stable are the differential satellite and receiver instrumental biases[J]. Radio Sci., 1997, 32 (5):1899-1910
[4]
Ma G, Maruyama T. Derivation of TEC and estimation of instrumental biases from GEONET in Japan[J]. J. Commun. Res. Lab., 2002, 49(4):121-133
[5]
Otsuka Y. A New Technique for Mapping of Total Electron Content Using GPS Network in Japan[D]. Kyoto: Kyoto University, 2001
[6]
Liu Z, Gao Y. Ionospheric TEC predictions over a local area GPS reference network[J]. GPS Solut., 2004, 8 (1):23-29
[7]
Sardon E, Rius A, Zarraoa N. Estimation of the transmitter and receiver differential biases and the ionospheric total electron content from Global Positioning System observations[J]. Radio Sci., 1994, 29(3):577-586
[8]
Davies K, Hartmann G K. Studying the ionosphere with the Global Positioning System[J]. Radio Sci., 1997, 32 (4):1695-1703
[9]
Lunt N, Kersley L, Bishop G J, et al. The effect of the protonosphere on the estimation of GPS total electron content: Validation using model simulations[J]. Radio Sci., 1999, 34(5):1261-1271
[10]
Zhang W, Zhang D H, Xiao Z. The influence of geomagnetic storms on the estimation of GPS instrumental biases[J]. Ann. Geophys., 2009, 27:1613-1623
[11]
Zhang D H, Zhang W, Li Q, et al. Accuracy analysis of the GPS instrumental bias estimated from observations in middle and low latitudes[J]. Ann. Geophys., 2010, 28 (8):09927689
[12]
Anghel A, Carrano C, Komjathy A, et al. Kalman filter-based algorithms for monitoring the ionosphere and plasmasphere with GPS in near-real time[J]. J. Atmos. Solar-Terr. Phys., 2009, 71(1):158-174
[13]
Carrano C S, Anghel A, Quinn R A, et al. Kalman filter estimation of plasmaspheric total electron content using GPS[J]. Radio Sci., 2009, 44(1):35-42
[14]
Ma X F, Maruyama T, Ma G, et al. Three-dimensional ionospheric tomography using observation data of GPS ground receivers and ionosonde by neural network[J]. J. Geophys. Res.: Space Phys., 2005, 110, A05308
[15]
Mazzella A J, Holland E A, Andreasen A M, et al. Autonomous estimation of plasmasphere content using GPS measurements[J]. Radio Sci., 2002, 37(6):41-45
[16]
Mazzella A J, Rao G S, Bailey G J, et al. GPS determinations of plasmasphere TEC[C]//International Beacon Satellite Symposium, Boston, 2007
[17]
Rama Rao P V S, Niranjan K, Prasad D S V V D, et al. On the validity of the Ionospheric Pierce Point (IPP) altitude of 350km in the Indian equatorial and low-latitude sector[J]. Ann. Geophys., 2006, 24:2159-2168
[18]
Ciraolo L, Azpilicueta F, Brunini C, et al. Calibration errors on experimental slant Total Electron Content (TEC) determined with GPS[J]. J. Geodesy, 2007, 81(2): 111-120
[19]
Hernández-Pajares M, Juan J M, Sanz J, et al. The IGS VTEC maps: A reliable source of ionospheric information since 1998[J]. J. Geodesy, 2009, 83(3/4):263-275
[20]
Zhang D H, Shi H, Jin Y Q, et al. The variation of the estimated GPS instrumental bias and its possible connection with ionospheric variability[J]. Sci. China: Tech. Sci., 2014, 57(1):67-79
[21]
Bishop G, Mazzella A, Holland E, et al. Algorithms that use the ionosphere to control GPS errors[C]//Position Location and Navigation Symposium. Atlanta: IEEE, 1996:145-152
[22]
Mannucci A J, Wilson B D, Yuan D N, et al. A global mapping technique for GPS-derived ionospheric total electron content measurements[J]. Radio Sci., 1998, 33 (3):565-582