Browsing by Author "Pérez Portero, Adrián"Més informació

Now showing items 1-17 of 17

    • A pre-correlation RFI mitigation algorithm for L-band interferometric radiometers 

      Querol Borràs, Jorge; Camps Carmona, Adriano José; Pérez Portero, Adrián; Oliva, Roger; Onrubia Ibáñez, Raul; Ramirez Martinez, Juan Ignacio; Zurita Campos, Alberto M.; Suess, Martin; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      Radio Frequency Interference (RFI) is a major concern for both real and synthetic aperture radiometers. After the lessons learnt from SMOS, ESA is preparing the next generation of L-band interferometric radiometers with ...

    • A review of RFI mitigation techniques in microwave radiometry 

      Querol, Jorge; Pérez Portero, Adrián; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2019-12-17)
      Article
      Open Access
      Radio frequency interference (RFI) is a well-known problem in microwave radiometry (MWR). Any undesired signal overlapping the MWR protected frequency bands introduces a bias in the measurements, which can corrupt the ...

    • Airborne GNSS-R: A key enabling technology for environmental monitoring 

      Pérez Portero, Adrián; Muñoz Martin, Joan Francesc; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Article
      Open Access
      Weather forecast using GNSS-R relies, to a large extent, on data acquired by airborne and spaceborne platforms due to the extended coverage that can be achieved. GEO satellites can retrieve measurements over large areas ...

    • Analysis on the feasability of airborne GNSS-R receivers for weather nowcasting and target detection 

      Pérez Portero, Adrián; Muñoz Martin, Joan Francesc; Camps Carmona, Adriano José (2020)
      Conference lecture
      Open Access
      Weather forecast relies to a large extent on data acquired by satellite. LEO polar satellites provide global coverage, but poor spatial resolution. GEO satellites provide a better coverage and revisit time, at expenses of ...

    • 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 ...

    • Design, implementation and verification of CubeSat systems for Earth Observation 

      Pérez Portero, Adrián (Universitat Politècnica de Catalunya, 2019-05-26)
      Master thesis
      Open Access
      In recent years, Earth Observation (EO) technologies have surged in an attempt to better understand the world we live in, and exploit the vast amount of data that can be collected to improve our lives. The field of EO ...

    • Design, implementation, and testing of a microwave radiometer for RITA, a 1U payload on board of the AlainSat-1 

      Gonga Siles, Amadeu; Pérez Portero, Adrián; Badia Torrents, Marta; Fernández García-Escudero, Luis; Ramos Castro, Juan José; Jallad, Abdul-Halim; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Conference report
      Restricted access - publisher's policy
      In 2019, the IEEE 2nd GRSS Student Grand Challenge selected the Remote sensing and Interference detector with radiomeTry and vegetation Analysis (RITA) payload to fly on board of AlainSat-1, a 3U CubeSat from the United ...

    • Implementation of a testbed for GNSS-R payload performance evaluation 

      Pérez Portero, Adrián; Muñoz Martin, Joan Francesc; Querol, Jorge; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2020-05-28)
      Article
      Open Access
      The functional performance of space-borne instruments must be validated on ground before and after satellite integration. The effects of radio-frequency interference are also becoming more important, even in protected bands ...

    • In-orbit validation of the FMPL-2 dual microwave payload onboard the Fsscat Mission 

      Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Pérez Portero, Adrián; Hyuk, Park; Ruiz De Azúa Ortega, Juan Adrián; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Restricted access - publisher's policy
      The Flexible Microwave Payload -2 is the microwave remote sensing payload of the FSSCat mission. The instrument is the outcome of years of work of the Universitat Politécnica de Catalunya Passive Remote Sensing Laboratory, ...

    • In-orbit validation of the fmpl-2 instrument—the gnss-r and l-band microwave radiometer payload of the fsscat mission 

      Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Pérez Portero, Adrián; Ruiz De Azúa Ortega, Juan Adrián; Hyuk, Park; Camps Carmona, Adriano José; Carnicero Domínguez, Bernardo; Pastena, Massimiliano (Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-01)
      Article
      Open Access
      The Flexible Microwave Payload-2 is the GNSS-R and L-band Microwave Radiometer Payload on board 3Cat-5/A, one of the two 6-unit CubeSats of the FSSCat mission, which were successfully launched on 3 September 2020 on Vega ...

    • Montsec Ground Station 

      Badia, M.; Pérez Portero, Adrián; García, Aina (Universitat Politècnica de Catalunya, 2022-04-29)
      Conference lecture
      Open Access
      In every space mission, the ability to contact the satellite to transmit or receive telecommands and data is one of the critical parts, so having a good ground segment is fundamental. In support to 3Cat-2 operations a ...

    • On the new architecture and capabilities of the front-End GNSS interference excisor (Fenix) 

      Pérez Portero, Adrián; Camps Carmona, Adriano José; Querol, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference lecture
      Restricted access - publisher's policy
      The number of applications based on Global Navigation Satellite Systems (GNSS) has been increasing in the last years. With its proliferation, Radio-Frequency Interference (RFI) has become one of the most concerning topics ...

    • Opportunistic communications using software defined radio 

      Pérez Portero, Adrián (Universitat Politècnica de Catalunya, 2017-01-26)
      Bachelor thesis
      Open Access
      The increasing scarcity in the available spectrum is limiting the growth of high bandwidth applications. By exploiting licensed channels when they are unused, Opportunistic Communications aim to use the spectrum in a more ...

    • Radio-frequency interference location, detection and classification using deep neural networks 

      Pérez Portero, Adrián; Querol Borràs, Jorge; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      Global Navigation Satellite System (GNSS) signals are used in Earth Observation for Radio Occultation and Reflectometry. The increasing effects of Radio-Frequency Interferences (RFI) on the performance of these receivers ...

    • RFI detection and mitigation for advanced correlators in interferometric radiometers 

      Pérez Portero, Adrián; Querol Borràs, Jorge; Camps Carmona, Adriano José; Martín Neira, Manuel; Suess, Martin; Ramirez, Juan Ignacio; Zurita Campos, Alberto M.; Closa Soteras, Josep; Oliva, Roger; Onrubia Ibáñez, Raul (Multidisciplinary Digital Publishing Institute (MDPI), 2022-09-01)
      Article
      Open Access
      This work presents the first RFI detection and mitigation algorithm for the interferometric radiometers that will be implemented in its correlator unit. The algorithm operates in the time and frequency domains, applying ...

    • RITA: a 1U multi-sensor Earth observation payload for the AlainSat-1 

      Pérez Portero, Adrián; Fernandez Capon, Lara Pilar; Badia Ballús, Marc; Fabregat, P.; Rayon, L.; Gonga Siles, Amadeu; Crisan, Ieremia; Garcia, A.; Munuera Vilalta, Mar; Contreras, L.; Ramos Castro, Juan José; Jallad, A.H.; Camps Carmona, Adriano José (Universitat Politècnica de Catalunya, 2022-04-29)
      Conference lecture
      Open Access
      The Remote sensing and Interference detector with radiomeTry and vegetation Analysis (RITA) is one of the Remote Sensing payloads selected as winners of the 2nd GRSS Student Grand Challenge in 2019, to fly on board of the ...

    • Snow and ice thickness retrievals using GNSS-R: Preliminary results of the mosaic experiment 

      Muñoz Martin, Joan Francesc; Pérez Portero, Adrián; Camps Carmona, Adriano José; Ribó Vedrilla, Serni; Cardellach Galí, Estel; Stroeve, Julienne; Nandan, Vishnu; Itkin, Polona; Tonboe, Rasmus; Hendricks, Stefan; Huntemann, Marcus; Spreen, Gunnar; Pastena, Massimiliano (Multidisciplinary Digital Publishing Institute (MDPI), 2020-12-02)
      Article
      Open Access
      The FSSCat mission was the 2017 ESA Sentinel Small Satellite (S^3) Challenge winner and the Copernicus Masters competition overall winner. It was successfully launched on 3 September 2020 onboard the VEGA SSMS PoC (VV16). ...