Guidance and navigation system for an aircraft
OwnerDenis BOUVET, Pierre-Yves DUMASinventors
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Abstract
A guidance and navigation system for an aircraft includes: a GNSS receiver configured to receive GNSS signals, as well as SBAS signals in at least one SBAS service area, these signals including GNSS and SBAS messages provided with at least one authentication information item encrypted by means of a private key, and the receiver comprising a signal processing module provided with a module for extracting and for transmitting said messages; and a device (DD) for extracting said at least one authentication information item for the messages, which is transmitted by the signal processing module and for decrypting it, by means of a public key, configured to output at least one validity/invalidity information item for the messages received.
Claims7
A guidance and navigation system for an aircraft comprising a GNSS receiver (R) configured to receive GNSS signals, as well as SBAS signals in at least one SBAS service area, these signals comprising GNSS and SBAS messages provided with at least one authentication information item encrypted by means of at least one private key, and the receiver (R) comprising a signal processing module (SP) provided with a module (ETM) for extracting and for transmitting said messages, comprising:
- a device (DD) for extracting said at least one authentication information item for the messages, which is transmitted by the signal processing module (SP) and for decrypting it, by means of at least one public key, configured to output at least one validity/invalidity information item for the messages received;
- the extraction and decryption device (DD) being integrated into a system which is external to the GNSS receiver.
Dependencies are inferred from the claim text.