Browsing by Author "Llaveria Godoy, David"Més informació

Now showing items 1-15 of 15

    • Architecting optimized spaceborne Earth observation missions 

      Llaveria Godoy, David; Araguz López, Carles; Camps Carmona, Adriano José; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Restricted access - publisher's policy
      Spaceborne constellations composed by several heterogeneous platforms are an actual solution to undertake Earth Observation missions. However, designing such missions present problems due to the heterogeneity and the ...

    • Architectural optimization framework for earth-observing heterogeneous constellations : marine weather forecast case 

      Araguz López, Carles; Llaveria Godoy, David; Lancheros Sepulveda, Estefany Maria; Bou Balust, Elisenda; Camps Carmona, Adriano José; Alarcón Cot, Eduardo José; Tonetti, Stefania; Cornara, Stefania; Vicario, Gonzalo; Lluch i Cruz, Ignasi; Matevosyan, Hripsime; Golkar, Alessandro; Cote, Judith; Pierotti, Stéphane; Rodríguez, Pedro; Alvaro Sanchez, A.; Sochacki, Mateusz; Narkiewicz, Janusz (2019-01-25)
      Article
      Open Access
      Earth observation satellite programs are currently facing, for some applications, the need to deliver hourly revisit times, subkilometric spatial resolutions, and near-real-time data access times. These stringent requirements, ...

    • ³Cat-4 Mission: a 1-unit cubesat for earth observation with a L-band radiometer and a GNSS-reflectometer using software defined radio 

      Ruiz De Azúa Ortega, Juan Adrián; Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Badia Ballús, Marc; Llaveria Godoy, David; Diez Garcia, Carlos; Aguilella, Andrea; Pérez Portero, Adrián; Milián, O.; Sobrino Hidalgo, Marco; Navarro Trastoy, Ángel; Lleó, H.; Sureda Anfres, Miquel; Soria Guerrero, Manel; Calveras Augé, Anna M.; Camps Carmona, Adriano José (2019)
      Conference lecture
      Restricted access - publisher's policy
      Global Navigation Satellite System Reflectometry and L-band microwave radiometry have been used for soil moisture, biomass, and cryosphere studies. Combining both technologies in a low-power and cost-effective solution ...

    • Correcting image blurring induced by the ADCS jitter in cubesats 

      Llaveria Godoy, David; Camps Carmona, Adriano José; Hyuk, Park (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Restricted access - publisher's policy
      Attitude determination and control systems (ADCS) are critical in many satellite missions, especially when high pointing accuracy is needed, such as in optical imagers. Current actuators used to control the platform's ...

    • Correcting the ADCS jitter induced blurring in small satellite imagery 

      Llaveria Godoy, David; Camps Carmona, Adriano José; Hyuk, Park (2020-09)
      Article
      Open Access
      Earth Observation missions have increasingly demanding requirements, i.e., higher spatial resolutions and SNR, and lower revisit times, etc. High-resolution images have to be captured with precise pointing accuracy which ...

    • Design and optimization of a polar satellite mission to complement the Copernicus System 

      Alarcón Cot, Eduardo José; Alvaro Sanchez, A.; Araguz López, Carles; Barrot, G.; Bou Balust, Elisenda; Camps Carmona, Adriano José; Cornara, Stefania; Gutiérrez Peña, Pedro Antonio; Lancheros Sepulveda, Estefany Maria; Lesne, O.; Llaveria Godoy, David; Lluch, I.; Males, Jan; Mangin, A.; Matevosyan, H.; Monge, A.; Narkiewicz, J.; Ourevitch, S.; Pierotti, S.; Pica, U.; Poghosyan, A.; Ruiz de Azúa Ortega, Joan Adrià (Institute of Electrical and Electronics Engineers (IEEE), 2018-06-05)
      Article
      Open Access
      The space industry is currently witnessing two concurrent trends: the increased modularity and miniaturization of technologies and the deployment of constellations of distributed satellite systems. As a consequence of the ...

    • DSSO: Distributed Satellite Systems model-based architecting for earth Observation missions 

      Llaveria Godoy, David (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access

    • Geometric corrections of artifacts induced by the attitude control actuators in CubeSats 

      Llaveria Godoy, David (Universitat Politècnica de Catalunya, 2019-10)
      Master thesis
      60 months embargo
      Attitude determination and control systems (AOCS) are an essential element for satellites, especially in remote sensing missions. However, current actuators used to control the platform attitude, as reaction wheels or ...

    • Mission and system architecture for an operational network of earth observation satellite nodes 

      Tonetti, Stefania; Cornara, Stefania; Vicario de Miguel, Gonzalo; Pierotti, Stéphane; Cote, Judith; Araguz López, Carles; Alarcón Cot, Eduardo José; Camps Carmona, Adriano José; Llaveria Godoy, David; Lancheros Sepulveda, Estefany Maria; Ruiz De Azúa Ortega, Juan Adrián; Bou Balust, Elisenda; Rodríguez Perochena, Pedro; Sochacki, Mateusz; Narkiewicz, Janusz; Golkar, Alessandro; Lluch i Cruz, Ignasi; Matevosyan, Hripsime (2020-06-27)
      Article
      Restricted access - publisher's policy
      Nowadays, constellations and distributed networks of satellites are emerging as clear development trends in the space system market to enable augmentation, enhancement, and possibilities of new applications for future Earth ...

    • Mission and system architecture for an operational network of earth observation satellite nodes 

      Tonetti, Stefania; Cornara, Stefania; Vicario, Gonzalo; Pierotti, Stéphane; Cote, Judith; Araguz López, Carles; Alarcón Cot, Eduardo José; Camps Carmona, Adriano José; Llaveria Godoy, David; Lancheros Sepulveda, Estefany Maria; Ruiz De Azúa Ortega, Juan Adrián; Bou Balust, Elisenda; Rodríguez, Pedro; Sochacki, Mateusz; Narkiewicz, Janusz (2019)
      Conference lecture
      Restricted access - publisher's policy
      Over the next few years, Europe will take important steps towards implementing the architecture of the Copernicus Space Component for Earth Observation (EO), fulfilling the needs of stakeholders concerned with land monitoring, ...

    • Optimized model-based design space exploration of distributed multi-orbit multi-platform Earth observation spacecraft architectures 

      Araguz López, Carles; Llaveria Godoy, David; Lancheros Sepulveda, Estefany Maria; Bou Balust, Elisenda; Camps Carmona, Adriano José; Alarcón Cot, Eduardo José; Lluch, I.; Matevosyan, H.; Golkar, Alessandro; Tonetti, Stefania; Cornara, Stefania; Pierotti, S.; Rodríguez Mondelo, Pedro Manuel; Alvaro Sanchez, A.; Narkiewicz, J. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Satellite architectures where networked, heterogeneous observation nodes capture data in a distributed manner are seen as feasible solutions to address the needs of next-generation Earth observation services (i.e. higher ...

    • Sea ice concentration and sea ice extent mapping with L-Band microwave radiometry and GNSS-R data from the FFSCat mission using neural networks 

      Llaveria Godoy, David; Muñoz Martin, Joan Francesc; Herbert, Christoph Josef; Pablos, Miriam; Hyuk, Park; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-17)
      Article
      Open Access
      CubeSat-based Earth Observation missions have emerged in recent times, achieving scientifically valuable data at a moderate cost. FSSCat is a two 6U CubeSats mission, winner of the ESA S3 challenge and overall winner of ...

    • Sea ice thickness estimation based on regression neural networks using L-band microwave radiometry data from the FSSCat mission 

      Herbert, Christoph Josef; Muñoz Martin, Joan Francesc; Llaveria Godoy, David; Pablos, Miriam; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-02)
      Article
      Open Access
      Several methods have been developed to provide polar maps of sea ice thickness (SIT) from L-band brightness temperature (TB) and altimetry data. Current process-based inversion methods to yield SIT fail to address the ...

    • Soil moisture estimation synergy using GNSS-R and L-Band microwave radiometry data from FSSCat/FMPL-2 

      Muñoz Martin, Joan Francesc; Llaveria Godoy, David; Herbert, Christoph Josef; Pablos, Miriam; Hyuk, Park; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-05)
      Article
      Open Access
      The Federated Satellite System mission (FSSCat) was the winner of the 2017 Copernicus Masters Competition and the first Copernicus third-party mission based on CubeSats. One of FSSCat’s objectives is to provide coarse Soil ...

    • Soil moisture retrieval using the FMPL-2/FSSCat GNSS-R and microwave radiometry data 

      Muñoz Martin, Joan Francesc; Llaveria Godoy, David; Herbert, Christoph Josef; Pablos, Miriam; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Restricted access - publisher's policy
      This work presents the first scientific results over land from the Flexible Microwave Payload -2 (FMPL-2), onboard the FSSCat mission. FMPL-2 is composed of an L-band microwave radiometer and a Global Navigation Satellite ...