Cristiano Magalhães Panazio

Learn More
We propose a new timing error detector for timing tracking loops inside the Rake receiver in spread spectrum systems. Based on a particle filter, this timing error detector jointly tracks the delays of each path of the frequency-selective channels. Instead of using a conventional channel estimator, we have introduced a joint time delay and channel estimator(More)
In this paper, we propose a pilot-symbol-aided iterative channel estimation for coded OFDM-based systems. We use the symbol APP provided by the channel decoder to form groups of virtual pilots. According to their reliabilities, we combine these groups to improve the channel estimation. We also compare the proposed algorithm with the EM algorithm.
pour l'obtention du doctorat spécialité : lasers, métrologie, communications par Cristiano PANAZIO sujet : ´ Etude fréquentielle de l'´ etalement de spectre et impact sur la conception d'un récepteur de radiocommunications universel Soutenue le 24/05/2005 devant le jury composé de Abstract The frequency domain processing provides an unified analysis for the(More)
  • 1