Exploració per tema "Interferometry"

Ara es mostren els items 61-80 de 238

    • Cross-talk statistics and impact in interferometric GNSS-R 

      Pascual Biosca, Daniel; Hyuk, Park; Onrubia Ibáñez, Raúl; Alonso Arroyo, Alberto; Querol Borràs, Jorge; Camps Carmona, Adriano José (2016-06-23)
      Article
      Accés obert
      This paper presents a statistical analysis of the crosstalk phenomenon in interferometric Global Navigation Satellite Systems Reflectometry (iGNSS-R). Crosstalk occurs when the Delay-Doppler Map (DDM) of a tracked satellite ...

    • Current modulation induced stability in laser diode under high optical feedback strength 

      Jha, Ajit; Kumar Shah, Manoj; Jha, Sachin; Reddy Cenkeramaddi, Linga; Royo Royo, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      The back-reflection of emitted laser beam (optical feedback, also know as selfmixing) from various external interfaces are sufficient to cause instability, and prohibiting its use in various fields such as communication, ...

    • Dealing with speckle effects in self-mixing interferometry measurements 

      Atashkhooei, Reza; Royo Royo, Santiago; Azcona Guerrero, Francisco Javier (2013-05)
      Article
      Accés restringit per política de l'editorial

    • Deformation measurement of an Experimental slab using gb-sar Analysis and interpretation 

      Aydindag, Ebru (Universitat Politècnica de Catalunya, 2018-05-24)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Aquest treball consisteix en l'anàlisi i interpretació de mesures de deformació amb interferometria Radar (GBSAR) dutes a terme durant un assaig a llarg termini a escala real. L'element monitoritzat és una llosa experimental ...

    • Delta kick cooling for cold atom interferometry and its application in space missions 

      Augst, Nadja (Universitat Politècnica de Catalunya, 2020-09-08)
      Projecte Final de Màster Oficial
      Accés obert
      Delta kick cooling (DKC) gives control over the free expansion of Bose-Einstein-Condensates for the purpose of atom interferometry. Recent projects and future proposals on how to apply DKC for cold atom interferometry in ...

    • Denormalization of visibilities for in-orbit calibration of interferometric radiometers 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Beraza Robledano, Santiago; Martín Neira, Manuel; Gutiérrez, C. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
      Article
      Accés obert
      This paper reviews the relative calibration of an interferometric radiometer taking into account the experimental results of the first batch of receivers developed in the frame of the European Space Agency's Soil Moisture ...

    • Deriving VTEC maps from SMOS radiometric data 

      Rubino, Roselena; Duffo Ubeda, Núria; González Gambau, Verónica; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Durán Martínez, Israel; Martín Neira, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-01)
      Comunicació de congrés
      Accés obert
      In this work, a new methodology is proposed in order to derive vertical total electron content (VTEC) maps from the radiometric measurements of the Soil Moisture and Ocean Salinity (SMOS) mission as an alternative approach ...

    • Design of a geosynchronous SAR system for water-vapour maps and deformation estimation 

      Monti Guarnieri, Andrea; Perletta, Luca; Rocca, Fabio; Scapin, Diego; Tebaldini, Stefano; Broquetas Ibars, Antoni; Ruiz Rodon, Josep (European Space Agency (ESA), 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, we propose a geosynchronous SAR concept that makes use of dual frequencies to achieve WIDE and SPOT coverage, aiming at continuous monitoring of deformation and generation of ...

    • Detección y estimación de velocidad de objetivos móviles mediante radares de apertura sintética con configuración de canal dual (dual channel SAR) 

      Domínguez Hunger, Cristian (Universitat Politècnica de Catalunya, 2012-02-16)
      Projecte/Treball Final de Carrera
      Accés obert
      English: Synthetic Aperture Radars (SAR) provide high resolution images, but they were not initially designed to detect moving targets. However, in the last decade, the interest in remote sensing capabilities provided by ...

    • Development of a scalable, point-of-care and label free microarray platform for rapid detection of sepsis 

      Sendra Garcia, Joan (Universitat Politècnica de Catalunya, 2015-06-29)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • Differential interferometry for multi-frequency ground-based SAR systems 

      López Esteban, Sergi (Universitat Politècnica de Catalunya, 2021-10)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Balamis Microwave Sensors and Electronics
      Ground-Based Synthetic Aperture Radars (GB-SAR) are a type of Synthetic Aperture Radars (SAR) with a higher flexibility and lower cost than their satellite counterparts. The effectiveness of GB-SAR terrain displacement ...

    • Differential SAR interferometry for the monitoring of land subsidence along railway infrastructures 

      Wassie, Yismaw Abera; Gao, Qi; Barra, Anna; Monserrat, Oriol; Crippa, Bruno; Crosetto, Michele (2022-05-30)
      Article
      Accés obert
      The paper summarizes the results of an ongoing research project carried out in cooperation between CTTC (Spain) and the University of Milan (Italy). The work aimed at investigating the role of quality indicators in the ...

    • Differential self-mixing interferometry for micro-cantilever motion sensing 

      Azcona Guerrero, Francisco Javier; Jha, Ajit; Yáñez, Carlos; Royo Royo, Santiago (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Force sensing is a common practice used for the characterization of matter properties and in particular of bio-materials. Different optical methods have been used in the past to allow high resolution force measurements ...

    • Diffuse reflectance spectroscopy characterization of molecular absorption via graphene based photodetectors 

      Evans, Michael (Universitat Politècnica de Catalunya, 2018-09)
      Projecte Final de Màster Oficial
      Accés obert
      This Master dissertation explores diffuse reflection spectroscopy as a viable tool for analytical chemistry, both quantitatively and qualitatively. In-vitro optical phantoms are created to mimic the turbid diffuse environments ...

    • Digital control and optimization of an interferometric orbit observation system for GEOSAR missions 

      Gonzalez Rodriguez, Alejandro (Universitat Politècnica de Catalunya, 2020-07-17)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • Digital correlation for geosar mission calibration 

      Carreño Megias, Xavier (Universitat Politècnica de Catalunya, 2019-06)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat

    • DInSAR pixel selection based on sublook spectral correlation along time 

      Iglesias González, Rubén; Mallorquí Franquet, Jordi Joan; López Dekker, Francisco J. (Institute of Electrical and Electronics Engineers (IEEE), 2014-07-01)
      Article
      Accés restringit per política de l'editorial
      The reliability of any final differential synthetic aperture radar (SAR) interferometry (DInSAR) product is directly related to the phase quality of the interferograms involved in the processing. Performing an appropriate ...

    • DInSAR processing with polarimetric data 

      Monells Miralles, Daniel (Universitat Politècnica de Catalunya, 2011-09-09)
      Projecte Final de Màster Oficial
      Accés obert
      English: Study of the uses of orbital polarimetric data for the survey of terrain subsidence through SAR Differential interferometry (DInSAR).

    • Direct geocoding for generation of precise wide-area elevation models with ERS SAR data 

      Mora, O; Agustí, O; Bara, M; Broquetas Ibars, Antoni (ESA, 1999)
      Text en actes de congrés
      Accés obert
      An improved technique for generation of Digital Elevation Models (DEM), capable of dealing with full scene images (100x100 km) coming from an interferogram obtained with ERS satellite data is presented. Starting from an ...

    • Diseño e implementación de un oscilador disciplinado por GPS para sincronismo en un VLBI 

      Sánchez Hernández, Raúl (Universitat Politècnica de Catalunya, 2016)
      Projecte/Treball Final de Carrera
      Accés obert