Exploració per tema "Radar"

Ara es mostren els items 92-111 de 322

    • Compressive sensing based candidate detector and its applications to spectrum sensing and through-the-wall radar imaging 

      Lagunas Targarona, Eva (Universitat Politècnica de Catalunya, 2014-03-07)
      Tesi
      Accés obert
      Signal acquisition is a main topic in signal processing. The well-known Shannon-Nyquist theorem lies at the heart of any conventional analog to digital converters stating that any signal has to be sampled with a constant ...

    • Considerations about antenna pattern measurements of 2-D aperture synthesis radiometers 

      Camps Carmona, Adriano José; Skou, Neils; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria (IEEE, 2006-04-30)
      Article
      Accés obert
      Accurate measurement of the antenna voltage patterns of large-aperture synthesis radiometers is critical in order to achieve good radiometric accuracy, and a very time consuming and expensive task. Measurement requirements ...

    • Constraints in azimuth resolution by refocusing slowly moving targets from single-look complex SAR vignettes 

      Yam Ontiveros, Luis Eduardo; Mallorquí Franquet, Jordi Joan; Rius Casals, Juan Manuel (VDE Conference Publications, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Accessing the raw data of spaceborne SAR systems is not always possible to refocus blurred SAR signatures of vessels. Instead, the single-look complex (SLC) data is usually more available, but since the vessel motion can ...

    • Contribution to the development of microwave remote sensing for UAV systems. 

      Alagbaatar, Tuvshinbayar (Universitat Politècnica de Catalunya, 2022-07-21)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Balamis Microwave Sensors and Electronics
      Microwave technology is very sensitive to Radio Frequency Interferences (RFI). Works previously done within this Master by Marc Jou [1] showed the impossibility to retrieve measurements using L-band radiometers on-board ...

    • DA-GLRT burst detection and synchronization based on a chirp-like preamble 

      Rodríguez, E; Lamarca Orozco, M. Meritxell; López Salcedo, José Antonio; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio Javier; Jalón, A (2008)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A specific preamble for the tasks of signal detection and synchronization in burst digital communications is presented. The preamble resembles a chirp signal used in RADAR applications. Its main benefit is that it allows ...

    • Data processing of a polarimetric X-Band phased array weather radar 

      Vilardell Sánchez, Jezabel (Universitat Politècnica de Catalunya, 2016-07)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   University of Massachusetts at Amherst
      Weather forecast estimation has been a matter of analysis for many years. The arrival of dual polarization radars meant an improvement due to the incorporation of new variables. This project illustrates how to obtain the ...

    • 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 ...

    • Desarrollo de solución software para minimizar los costes en las operaciones de aeronaves en función de sus maniobras 

      Bagó Vila, Sergi (Universitat Politècnica de Catalunya, 2022-02-10)
      Treball Final de Grau
      Accés obert
      Commercial aviation has developed intensively in recent decades, due to the rise of low-cost airlines and globalization. One of the consequences of the high growth is the increase in greenhouse gas emissions in the atmosphere. ...

    • Desarrollo de una aplicación para informar sobre carreteras usando social networks 

      Álvarez Morales, Ferran (Universitat Politècnica de Catalunya, 2015-04-24)
      Treball Final de Grau
      Accés obert
      [CASTELLÀ] Desarrollo de una aplicación móvil que informa en tiempo real sobre la localización de radares. La información necesaria se obtiene mediante el análisis de las publicaciones de la red social Twitter.

    • Desenvolupament d'un software multiplataforma decodificador/reproductor dades Asterix 

      Alarcón García-Saavedra, Antonio (Universitat Politècnica de Catalunya, 2022-02-10)
      Treball Final de Grau
      Accés obert
      This project will explain the development of a multiplatform software capable of decoding the EUROCONTROL protocol ASTERIX, decoding the categories 10, 19, 20 and 21. The requirements of the software required priorizing ...

    • Desenvolupament de codis d'anàlisi de la dispersió electromagnètica deguda a blancs RADAR molt petits 

      Crespí Font, Francisca (Universitat Politècnica de Catalunya, 2010-02-05)
      Treball Final de Grau
      Accés obert

    • Desenvolupament del mòdul ASXDEC del sistema SSDA (Surveillance Systems Data Analysis) 

      Marin Serra, Xavier (Universitat Politècnica de Catalunya, 2021-10-27)
      Treball Final de Grau
      Accés obert
      This project takes part in a bigger European initiative called SSDA (Surveillance Sensor Data Analysis) the aim of which is the analysis of data from surveillance sensor. When we talk about surveillance in this context, ...

    • Design and Analysis of Superresolution algorithm and signal separation technique for an OFDM-based MIMO radar 

      Nguyen, Thanh Thuy (Universitat Politècnica de Catalunya / Karlsruher Institut für Technology, 2012-10-31)
      Projecte Final de Màster Oficial
      Accés obert
      Recently, the concept of MIMO radar has been proposed. MIMO radar has the capability to transmit orthogonal (or incoherent) waveforms at multiple transmit antennas. It offers promising potentials for multipath fading, ...

    • Design and characterization of a mobile GPR antenna assembly 

      Nadal Zaragoza, Albert (Universitat Politècnica de Catalunya, 2020-06)
      Treball Final de Grau
      Accés obert
      Ground penetrating radars have been tested for detecting trapped alive victims from the ruins of collapsed building, for example due to a mining disaster, rock slide or natural catastrophe. The priority of the rescue teams ...

    • Design and performance evaluation of millimeter-wave flat lens antennas for communications, radar and imaging applications 

      Imbert Villà, Marc (Universitat Politècnica de Catalunya, 2016-07-29)
      Tesi
      Accés obert
      Millimeter-wave systems introduce a set of particular severe requirements from the antenna point of view in order to achieve specific performances. In this sense, high directive antennas are required to overcome the huge ...

    • Design of a Chipless Harmonic Radar Temperature Sensor 

      Romeu Gómez, Jordi (Universitat Politècnica de Catalunya / Technische Universität Darmstadt, 2013-09-10)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Technische Universität Darmstadt
      [ANGLÈS] Passive chipless wireless sensor tags are used in environments with specific conditions where chips, wires or power supplies cannot be used. Nowadays a huge part of these sensors use Surface Acoustic Wave (SAW) ...

    • Design of a reflected power canceller for single-antenna FMC radars 

      Amézaga Sarries, Adrià (Universitat Politècnica de Catalunya / University of Massachusetts at Amherst. Microwave Sensing Laboratory, 2013-12-10)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   University of Massachusetts at Amherst
      [ANGLÈS] Frequency Modulated Continuous Wave radars suffer from an undesirable effect called transmitter leakage. The power leak between transmitter and receiver due to the lack isolation impairs reception performance. The ...

    • Design of a Temperature Sensitive Band Pass Filter for a Chipless Harmonic Radar Sensor 

      Romeu Gómez, Jordi (Universitat Politècnica de Catalunya / Technische Universität Darmstadt, 2013-09-26)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] Passive chipless wireless sensor tags are used in environments with specific conditions where chips, wires or power supplies cannot be used. Nowadays a huge part of these sensors use Surface Acoustic Wave (SAW) ...

    • Design of a time-stamp subsystem for Geostationary satellites orbit determination and Earth observation 

      Cerdà Roscar, Josep (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés obert
      This project proposes and evaluates a solution to address the existing problem of time synchronization data in the context of precise orbit determination of geostationary satel- lites. For this reason, in this memory a ...

    • Design of an integrated HAPS detection system 

      Segura Azañón, Víctor (Universitat Politècnica de Catalunya, 2021-05-12)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Tampereen ammattikorkeakoulu
      The development of new technologies in the field of telecommunications has a great impact on how we communicate with other people and even with some objects. The incorporation of 5G, IoT and 6G will require new means of ...