# CNA - Amphi 3 [Polycopié](https://moodle.insa-lyon.fr/pluginfile.php/84373/mod_resource/content/10/CoursCNA2021-2022-chapter8.pdf) ###### tags : `CNA` `Amphi` ## Systèmes avancés  $\underline{x}(t) = \sum_{k=1}^N \underline{d}[k] \cdot g_E(t-k\cdot T_s)$ $\mathbf{\hat{d}} = arg \ min \ ||\mathbf{d}-\mathbf{z}||, \forall \mathbf{d} \in \Omega$ **MIMO :** **M**ultiple **I**nput **M**ultiple **O**utput Le système contient plusieurs antennes qui peuvent à la fois transmettre et recevoir.    *Notation :* $g_-^*[k] =$ Filtre retourné conjugué
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