Post flight data analyses are essential activities in aerospace projects. In particular, there is a\udspecific interest in obtaining vehicle aerodynamic characteristics from flight data, especially\udfor re-entry vehicle, in order to better understand theoretical predictions, to validate wind-\udtunnel test results and to get more accurate and reliable mathematical models for the\udpurpose of simulation, stability analysis, and control system design and evaluation. Indeed,\uddue to atmospheric re-entry specificity in terms of environment and phenomena, ground\udbased experiments are not fully exhaustive and in-flight experimentation is mandatory.\udMoreover pre-flight models are usually characterised by wide uncertainty ranges, which\udshould be reduced. These objectives can be reached by performing vehicle’s model\udidentification from flight data.
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