Exploració per autor "Hernández Pajares, Manuel"
Ara es mostren els items 64-83 de 202
-
High accuracy positioning using carrier-phases with the opensource GPSTK software
Salazar Hernández, Dagoberto José; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2008-12-12)
Article
Accés obertThe objective of this work is to show how using a proper GNSS data management strategy, combined with the flexibility provided by the open source "GPS Toolkit" (GPSTk), it is possible to easily develop both simple ... -
High accuracy positioning using carrier-phases with the opensource GPSTK software
Salazar Hernández, Dagoberto José; Hernández Pajares, Manuel; Miguel, J.; Sanz Subirana, Jaume (ESA, 2008-12-12)
Comunicació de congrés
Accés obert -
High-rate Doppler-aided cycle slip detection and repair method for low-cost single-frequency receivers
Zhao, Jiaojiao; Hernández Pajares, Manuel; Li, Zishen; Wang, Liang; Yuan, Hong (2020-06-08)
Article
Accés restringit per política de l'editorialCarrier phase cycle slips can be an important source of error in precise Global Navigation Satellite System (GNSS) positioning. In such cases, cycle slips can seriously compromise the positioning accuracy and reliability, ... -
High-resolution ionosphere corrections for single-frequency positioning
Goss, Andreas; Hernández Pajares, Manuel; Schmidt, Michael; Roma Dollase, David; Erdogan, Eren; Seitz, Florian (Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-01)
Article
Accés obertThe ionosphere is one of the main error sources in positioning and navigation; thus, information about the ionosphere is mandatory for precise modern Global Navigation Satellite System (GNSS) applications. The International ... -
IGS real-time service for global ionospheric total electron content modeling
Li, Zishen; Wang, Ningbo; Hernández Pajares, Manuel; Yuan, Yunbin; Krankowski, Andrzej; Liu, Ang; Zha, Jiuping; García Rigo, Alberto; Roma Dollase, David; Yang, Heng (2020-02-18)
Article
Accés restringit per política de l'editorialBenefiting from global multi-frequency and multi-constellation GNSS measurements provided by the experimental International GNSS real-time service (IGS RTS), a predicting-plus-modeling approach employed by Chinese Academy ... -
Impact and implementation of higher-order ionospheric effects on precise GNSS applications
Hadas, Tomasz; Krypiak-Gregorczyk, Anna; Hernández Pajares, Manuel; Kaplon, Jan; Paziewski, Jacek; Wielgosz, Pawel; García Rigo, Alberto; Kazmierski, K.; Sosnica, Krzysztof; Kwasniak, D.; Sierny, J.; Bosy, Jaroslaw; Pucilowski, Marcin; Szyszko, Robert; Portasiak, Krystian; Olivares, German; Gulyaeva, Tamara L.; Orús Pérez, Raul (2017-11)
Article
Accés obertHigh precision Global Navigation Satellite Systems (GNSS) positioning and time transfer require correcting signal delays, in particular higher-order ionospheric (I2+) terms. We present a consolidated model to correct second- ... -
Impact and synergies of GIM error estimates on the VTEC interpolation and single-frequency PPP at low latitude region
Jerez, Gabriel Olivera; Hernández Pajares, Manuel; Goss, Andreas; Menezes da Silva, Crislaine; Alves, Daniele Barroca Marra; Monico, João Francisco Galera (2022-04-01)
Article
Accés obertThe vertical total electron content (VTEC) is one of the key quantities to describe variations of the ionosphere and can be pro- vided to users to correct the ionospheric disturbances for GNSS (Global Navigation Satellite ... -
Impact of higher order ionospheric delay on precise GNSS computation
Hernández Pajares, Manuel; Aragón Ángel, María Ángeles; Defraigne, Pascale; Bergeot, Nicolas; Prieto Cerdeira, Roberto; Sanz Subirana, Jaume (2013)
Text en actes de congrés
Accés obert -
Improved Abel transform inversion: application to COSMIC/FORMOSAT-3 ionospheric occultations
Aragón Ángel, María Ángeles; Hernández Pajares, Manuel; Miguel Juan, Miguel; Sanz Subirana, Jaume; Altadill, David; Liou, YueiAn; Lee, ChienChih (2008-10-02)
Comunicació de congrés
Accés obert -
Improved MSTID modelling and impact on precise GNSS processing
Hernández Pajares, Manuel; Wielgosz, Pawel; Paziewski, Jacek; Krypiak-Gregorczyk, Anna; Stepniak, Katarzyna; Bosy, Jaroslaw; Kaplon, Jan; Hadas, Tomasz; Orús Pérez, Raul; Monte Moreno, Enrique; Yang, Heng; Olivares Pulido, Germán; García Rigo, Alberto (2015)
Comunicació de congrés
Accés restringit per política de l'editorial -
Improvement and validation of retrieved FORMOSAT-3/COSMIC electron densities using Jicamarca DPS
Aragón Ángel, María Ángeles; Liou, Y.-A.; Lee, C.C.; Hernández Pajares, Manuel; Sanz Subirana, Jaume; Juan Zornoza, José Miguel; Reinisch, B.W. (2010)
Presentació
Accés obert -
Improvement of global ionospheric VTEC maps by using kriging interpolation technique
Orús Pérez, Raul; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2005-07-07)
Article
Accés obertIn this work, a geostatistic interpolation algorithm, called kriging, has been applied to improve the Technical University of Catalonia (UPC) global ionospheric maps (GIMs) computed with GPS data. This new UPC GIM, from ... -
Improvement of retrieved FORMOSAT-3/COSMIC electron densities validated by ionospheric sounder measurements at Jicamarca
Aragón Ángel, María Ángeles; Liou, Y.-A.; Lee, C.-C.; Reinisch, B.W.; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2011-09-01)
Article
Accés obertInversion techniques applied to GPS‐LEO radio occultation data allow the retrieval of accurate and worldwide‐distributed refractivity profiles, which, in the case of the ionosphere, can be converted into electron densities ... -
Influence of temporal resolution on the performance of global ionospheric maps
Liu, Qi; Hernández Pajares, Manuel; Lyu, Haixia; Goss, Andreas (2021-03)
Article
Accés obertGlobal ionosphere maps (GIM) computed from dual-frequency GNSS measurements have been widely used for monitoring ionosphere as well as providing ionospheric corrections in Space Geodesy since 1998. This work focuses on a ... -
Inputs received from Ionospheric research groups on activities related with RT global electron content determination
Hernández Pajares, Manuel (2014)
Text en actes de congrés
Accés obert -
INSPIRE: DI 1-1 Technical Note with assessment of state-of-the-art of earthquake precursors identification
Krankowski, Andrzej; Pulinets, Sergey; Cherniak, Iurii; Hernández Pajares, Manuel; Rothkael, Hanna; Rojas Gregorio, José Ignacio; García Rigo, Alberto (2014-12-25)
Report de recerca
Accés restringit per acord de confidencialitat -
INSPIRE: DI 1-2 Technical Note with definition of methodology for identification of earthquake signatures
Krankowski, Andrzej; Pulinets, Sergey; Cherniak, Iurii; Hernández Pajares, Manuel; Rothkael, Hanna; García Rigo, Alberto (2014-12-25)
Report de recerca
Accés restringit per acord de confidencialitat -
INSPIRE: DI 2-1 Technical Note describing the design and development of the database with performance criteria
Krankowski, Andrzej; Hernández Pajares, Manuel; Pulinets, Sergey; Cherniak, Iurii; Rothkael, Hanna; Rojas Gregorio, José Ignacio; García Rigo, Alberto (2015-01-26)
Report de recerca
Accés restringit per acord de confidencialitat -
Integrity monitoring for carrier phase ambiguities
Jofre, Martí; Ramos Bosch, Pedro; Feng, S.; Ochieng, W.; Samson, J; Tossaint, M; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Aragón Ángel, María Ángeles (2012-01)
Article
Accés obertThe determination of the correct integer number of carrier cycles (integer ambiguity) is the key to high accuracy positioning with carrier phase measurements from Global Navigation Satellite Systems (GNSS). There are a ... -
Internal report. Numerical methods for medium scale traveling ionospheric disturbances signal pre-processing
Yang, Heng; Monte Moreno, Enrique; Hernández Pajares, Manuel (2015-01-15)
Report de recerca
Accés obertIn this paper we discuss the e ects of several signal preprocessing methods for enhancing the Medium Scale Traveling Ionospheric Dis- turbances (MSTIDs) signal. The MSTIDs signal are the ionospheric signatures of waves ...