Thales

Stephane Rollet

Jean-Pierre Arethens

Device for receiving radio-navigation signals, for aiding the piloting of an aircraft, comprising a first master GNSS module and a second slave GNSS module which are dissimilar, the first master GNSS module comprising a first means for processing radio-navigation signals and a first means for computing guidance data (X), the second slave GNSS module comprising a second means for processing radio-navigation signals and a second means for computing guidance data (X) on the basis of the measurements provided by the said second means for processing signals, each GNSS module furthermore comprising a comparison means for comparing between the outputs X,Xof the said first and second means for computing guidance data, suitable for executing the following integrity test:|&#xb7;&#x221a;{square root over (Variance())}and for inferring an integrity defect if the said integrity test is satisfied.

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Chabeuil, France

Stephane Rollet