Browsing by Author "Martí Espelt, Aniol"Més informacióMés informació

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    • Context-aware lossless and lossy compression of radio frequency signals 

      Martí Espelt, Aniol; Portell de Mora, Jordi; Riba Sagarra, Jaume; Mas Casals, Orestes Miquel (Multidisciplinary Digital Publishing Institute (MDPI), 2023-03-28)
      Article
      Open Access
      We propose an algorithm based on linear prediction that can perform both the lossless and near-lossless compression of RF signals. The proposed algorithm is coupled with two signal detection methods to determine the presence ...

    • Image and radio-frequency data compression for OPS-SAT using FAPEC 

      Portell de Mora, Jordi; Martí Espelt, Aniol; Iudica, Riccardo; Evans, David; Zelenevskiy, Vladimir (2022)
      Conference report
      Open Access
      OPS-SAT is an ESA technology demonstration cubesat which includes a colour camera, a Software Defined Radio (SDR) receiver and a powerful ARM processor. One of the experiments executed there is FAPEC, a high-performance ...

    • Implementation of FAPEC decorrelation stages for IQ and water column data 

      Martí Espelt, Aniol (Universitat Politècnica de Catalunya, 2021-07-08)
      Bachelor thesis
      Open Access
      Recent technological advances have resulted in massive data collection, also in hazard environments such as the sea or space. In these situations, both computing power and downlink bandwidth are quite limited. For this ...

    • Rényi divergence and kernel methods for testing Gaussianity 

      Martí Espelt, Aniol (Universitat Politècnica de Catalunya, 2022-07-12)
      Master thesis
      Restricted access - confidentiality agreement
      Gaussianity tests have been used for decades in statistics to determine if a dataset is well modeled by a normal distribution. More recently, they have also found their place in machine learning. The reason of this ...